The cost of the event at Skate Fest can be represented as 200 + 3x. The cost of the event at Roller Rama can be represented as 5x.
The cost of the event at Skate Fest can be represented by the mathematical expression 200 + 3x, where x is the number of students attending the event. This represents the fixed fee of $200 plus an additional $3 for each skater.
The cost of the event at Roller Rama can be represented by the mathematical expression 5x, where x is the number of students attending the event. This represents $5 per skater.
By comparing these two expressions, the director can determine which skating rink is more cost-effective based on the number of students attending the event.
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Evaluate the following?? Easy points
Answer:
c = 314
Step-by-step explanation:
c = d (3.14)
c = 100(3.14)
c = 314
hope this helps!!
Find 4% of 1275- I couldn’t seem to figure this one out for some reason I dunno
Answer:
51
Step-by-step explanation:
4% as a decimal is 0.04, so you can just do 0.04 * 1275 = 51.
Answer:
-51
Step-by-step explanation:
ree
Find the Next 3 Letters in J F M A M J J A
What are the next 3 letters in the sequence J F M A M J J A?
The next three letters in the sequence J F M A M J J A are S, O, N.
To find the next three letters in the sequence J F M A M J J A, we need to identify the pattern or rule that governs the sequence. In this case, the sequence follows the pattern of the first letter of each month in the year.
The sequence starts with 'J' for January, followed by 'F' for February, 'M' for March, 'A' for April, 'M' for May, 'J' for June, 'J' for July, and 'A' for August. The pattern repeats itself every 12 months.
Therefore, the next three letters in the sequence would be 'S' for September, 'O' for October, and 'N' for November.
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The next three letters in the sequence "J F M A M J J A" are "S O N", indicating the months of September, October, and November.
The given sequence "J F M A M J J A" represents the first letters of the months in a year, starting from January (J) and ending with August (A). To find the next three letters in the sequence, we need to continue the pattern by considering the remaining months.
The next month after August is September, so the next letter in the sequence is "S". After September comes October, represented by the letter "O". Finally, the month following October is November, which can be represented by the letter "N".
Therefore, the next three letters in the sequence "J F M A M J J A" are "S O N", indicating the months of September, October, and November.
It is important to note that the given sequence follows the pattern of the months in the Gregorian calendar. However, different cultures and calendars may have different sequences or names for the months.
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240 is 75% of what number?
Answer:
320Step-by-step explanation:
Let the unknown number be x
\(75 \% \times x = 240 \\ \frac{75x}{100} = 240\)
Cross Multiply
\(75x \times 1 = 100 \times 240 \\ 75x = 24000\)
Divide both sides of the equation by 75
\( \frac{75x}{75} = \frac{24000}{75} \)
Simplify
\(x = 320\)
Answer:
320
Step-by-step explanation:
you would do \(\frac{75}{100}\)*x=240
then you would multiply both sides by 100 and then divide both sides by 75 which woud give you x=240*\(\frac{100}{75}\)
which would give you \(\frac{24000}{75}\)=x
which then simplifies down to 320
5196
A large rectangle is made by joining three identical small rectangles as shown.
The perimeter of one small rectangle is 21 cm.
The width of one small rectangle is x cm.
x cm
Work out the perimeter of the large rectangle.
The final line of your answer should be of the form,
Perimeter of large rectangle is ... cm
Answer:
35 cm
Step-by-step explanation:
As shown in the image attached, the A large rectangle is made by joining three identical small rectangles,
The width of one small rectangle is x cm and the length of one small rectangle is 2x cm. Therefore the perimeter of the small rectangle is given as:
2(length + width) = Perimeter
2(2x + x) = 21
2(3x) = 21
6x = 21
x = 21/6 = 3.5 cm
x = 3.5 cm
From the image attached, the width of the large rectangle is 2x (x + x) and the length is 3x (2x + x). Therefore, the perimeter of the large rectangle is:
2(length + width) = Perimeter
2(3x + 2x) = Perimeter
Perimeter = 2(5x)
Perimeter = 10x
Perimeter = 10(3.5)
Perimeter = 35 cm
m/ABC = 40°and BD is the angle
bisector of ZABC
B
3x-1
34-2x
A
3y+6
D
5y-18
m/ABD = [? ]°
The value of ∠ABD is 20°.
What is bisector of angle?In geometry, an angle bisector is a line that divides an angle into two equal angles. The term "bisector" refers to a device that divides an object or a shape into two equal halves. An angle bisector is a ray that divides an angle into two identical segments of the same length.
Given ∠ABC = 40°
and BD is angle bisector,
so ∠ABD = ∠DBC
∠ABD = 3x - 1
∠DBC = 34 - 2x
∠ABD = ∠DBC
3x - 1 = 34 - 2x
3x + 2x = 34 + 1
5x = 35
x =7
∠ABD = 3x - 1
∠ABD = 3(7) - 1
∠ABD = 20°
Hence value of ∠ABD = 20°.
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1) Ed invests $1,000 into a money market account that earns 8% annual interest compounded quarterly. How much money will
he have earned after 8 years?
The money market account earns 8/4 = 2% interest per quarter.
In one year, there are 4 quarters.
so, the formula to calculate the balance after 8 years is:
A = P (1 + r/n)^(nt)
where A is the final balance, P is the principal (initial investment), r is the annual interest rate, n is the number of times interest is compounded per year, and t is the number of years the money is invested for.
Substituting in the given values,
A = 1000 (1 + .02)^(4*8)
A = 1000 (1.02)^32
A = 1000 (1.8587)
A = 1858.7
So after 8 years, Ed will have earned $1858.7.
GPAs are normally distributed with a mean of 2.6 and a standard deviation of 0.4. Using the Empirical Rule, what percentage of students at the college have a GPA between 2.2 and 3
2.2 = 2.6 - 0.4 is 1 standard deviation below the mean, and 3 = 2.6 + 0.4 is 1 standard deviation above it. Then by the empirical rule, the percentage of students with GPA between 2.2 and 3 is
Pr [2.2 ≤ X ≤ 3] = Pr [-1 ≤ Z ≤ 1] ≈ 68%
(where Z is normally distributed with mean 0 and s.d. 1)
A student incorrectly solved an exponential equation looking at the work shown, what mistake did the student make
Answer:
i have made it in pic above
1) Given a triangle ABC, such that: BC = 6 cm; ABC = 40° and ACB = 60°. 1) Draw the triangle ABC. 2) Calculate the measure of the angle BAC. 3) The bisector of the angle BAC intersects [BC] in a point D. Show that ABD is an isosceles triangle. 4) Let M be the midpoint of the segment [AB]. Show that (MD) is the perpendicular bisector of the segment [AB]. 5) Let N be the orthogonal projection of D on (AC). Show that DM = DN.
Step-by-step explanation:
1) To draw triangle ABC, we start by drawing a line segment BC of length 6 cm. Then we draw an angle of 40° at point B, and an angle of 60° at point C. We label the intersection of the two lines as point A. This gives us triangle ABC.
```
C
/ \
/ \
/ \
/ \
/ \
/ \
/ \
/_60° 40°\_
B A
```
2) To find the measure of angle BAC, we can use the fact that the angles in a triangle add up to 180°. Therefore, angle BAC = 180° - 40° - 60° = 80°.
3) To show that ABD is an isosceles triangle, we need to show that AB = AD. Let E be the point where the bisector of angle BAC intersects AB. Then, by the angle bisector theorem, we have:
AB/BE = AC/CE
Substituting the given values, we get:
AB/BE = AC/CE
AB/BE = 6/sin(40°)
AB = 6*sin(80°)/sin(40°)
Similarly, we can use the angle bisector theorem on triangle ACD to get:
AD/BD = AC/BC
AD/BD = 6/sin(60°)
AD = 6*sin(80°)/sin(60°)
Since AB and AD are both equal to 6*sin(80°)/sin(40°), we have shown that ABD is an isosceles triangle.
4) To show that MD is the perpendicular bisector of AB, we need to show that MD is perpendicular to AB and that MD bisects AB.
First, we can show that MD is perpendicular to AB by showing that triangle AMD is a right triangle with DM as its hypotenuse. Since M is the midpoint of AB, we have AM = MB. Also, since ABD is an isosceles triangle, we have AB = AD. Therefore, triangle AMD is isosceles, with AM = AD. Using the fact that the angles in a triangle add up to 180°, we get:
angle AMD = 180° - angle MAD - angle ADM
angle AMD = 180° - angle BAD/2 - angle ABD/2
angle AMD = 180° - 40°/2 - 80°/2
angle AMD = 90°
Therefore, we have shown that MD is perpendicular to AB.
Next, we can show that MD bisects AB by showing that AM = MB = MD. We have already shown that AM = MB. To show that AM = MD, we can use the fact that triangle AMD is isosceles to get:
AM = AD = 6*sin(80°)/sin(60°)
Therefore, we have shown that MD is the perpendicular bisector of AB.
5) Finally, to show that DM = DN, we can use the fact that triangle DNM is a right triangle with DM as its hypotenuse. Since DN is the orthogonal projection of D on AC, we have:
DN = DC*sin(60°) = 3
Using the fact that AD = 6*sin(80°)/sin(60°), we can find the length of AN:
AN = AD*sin(20°) = 6*sin(80°)/(2*sin(60°)*cos(20°)) = 3*sin(80°)/cos(20°)
Using the Pythagorean theorem on triangle AND, we get:
DM^2 = DN^2 + AN^2
DM^2 = 3^2 + (3*sin(80°)/cos(20°))^2
Simplifying, we get:
DM^2 = 9 + 9*(tan(80°))^2
DM^2 = 9 + 9*(cot(10°))^2
DM^2 = 9 + 9*(tan(80°))^2
DM^2 = 9 + 9*(cot(10°))^2
DM^2 = 9 + 9*(1/tan(10°))^2
DM^2= 9 + 9*(1/0.1763)^2
DM^2 = 9 + 228.32
DM^2 = 237.32
DM ≈ 15.4
Similarly, using the Pythagorean theorem on triangle ANC, we get:
DN^2 = AN^2 - AC^2
DN^2 = (3*sin(80°)/cos(20°))^2 - 6^2
DN^2 = 9*(sin(80°)/cos(20°))^2 - 36
DN^2 = 9*(cos(10°)/cos(20°))^2 - 36
Simplifying, we get:
DN^2 = 9*(1/sin(20°))^2 - 36
DN^2 = 9*(csc(20°))^2 - 36
DN^2 = 9*(1.0642)^2 - 36
DN^2 = 3.601
Therefore, we have:
DM^2 - DN^2 = 237.32 - 3.601 = 233.719
Since DM^2 - DN^2 = DM^2 - DM^2 = 0, we have shown that DM = DN.
find the least number by which 5045 must be subtracted to get a perfect square
Answer:
5041
Step-by-step explanation:
Hence the least number that should be subtracted from 5045 to make it a perfect square is 4 . So the perfect square number is = 5045 - 4 = 5041
Find the slope of the line passing through each pair of points.(-6, 16) and (-8, 20)
Answer:
\(slope \: s = \frac{( {y}^{1} - {y}^{o} ) }{( {x}^{1} - {x}^{o} )} \\ s = \frac{(20 - 16)}{( - 8 + 6)} \\ s = \frac{4}{ - 2} \\ s = - 2\)
abebe is 12 years old and his sister aster is 2 years old. In how years abebe be exactly twice as old as aster
Answer:
8 years
Step-by-step explanation:
Currently
Abebe → 12 years old
Aster → 2 years
With every passing year, each of them will be 1 year older hence the difference between their ages will remain constant.
Difference in ages
= 12 -2
= 10
Let the age of Aster be x years old when Abebe is twice her age.
Abebe → 2x years old
Aster → x years old
Difference in age
= 2x -x
= x
x= 10
Aster is 10 years old when Abebe is twice her age.
Number of years passed
= 10 -2
= 8
Thus, Abebe will be twice as old as her sister in 8 years.
Problem number 26 of the Rhind Papyrus says: Find a quantity such that when it is added to StartFraction 1 Over 4 EndFraction of itself the result is a 15. The modern day equation that models this problem is x plus StartFraction 1 over 4 EndFraction x equals 15.
Answer:
12
Step-by-step explanation:
x + 1/4 x = 15
4/4 x + 1/4 x = 15
5/4 x = 15
x = 15 * 4/5
x = 12
Answer:
Its 12 trust me just did it
Step-by-step explanation:
If a water pump can pump 30 liters of water per hour, how much water can it pump in 2 hours? A. 80 L B. 60 L C. 40 L D. 30 L
Answer:
B. 60L
Step-by-step explanation:
30L = 1hr
2hrs= 30×2= 60L
Answer:
B
Step-by-step explanation:
What is the value of arc sin(2√2)?
Tayler has $320 to pay for dining room chairs. She expects to pay about $80 per chair. Her friend told her that she has 3 that Taylor can have for free.
Complete the equation below to find the total number of chairs that Taylor can get for her dining room. Use c to represent the total chairs.
If each chair costs 80 bucks, c chairs costs 80c bucks.
She has 3 already.
80(c - 3) = 320 because the total number of chairs is c, but for 3 of the chairs, she doesn't need to pay.
Imari's family lights 372 diyas (oil lamps) during the Diwali festival. They are arranged in 12 rows. Suppose each lamp measures 2.5 inches by 2.5 inches. What are the dimensions of the rectangular display of diyas?
Answer: 77.5 inches by 30 inches
plssssssss helpppppp meeeee
38. Ler α = (152)(364) and β = (163)(254) Both have cycle structure 3^2. Find π a such that iαπ^-1 = β.
The value of π a turns out to be (153)(264) when Both α = (152)(364) and β = (163)(254) have cycle structure \(3^2.\)
Given α = (152)(364) and β = (163)(254) where both α and β have a cycle structure \(3^2.\) We have to find πa such that iα\(π^-1\)= β. This implies πaiα = βπa Let us first consider the cycle structure of α.α = (152)(364) Cycle Structure of α= \(2^2 * 3^2\) Now, we will consider the cycle structure of β.β = (163)(254) Cycle Structure of β= \(2^2 * 3^2\) Note that both α and β have a similar set cycle structure of \(3^2\)
Therefore, πa should also have a cycle structure of \(3^2\) .πa should contain three 1-cycles and three 2-cycles such that iα\(π^-1\)= β. We can represent πa as πa = (a b c)(d e f).Let us try to find the values of a, b, c, d, e and f.πaiα = βπa (a b c)(d e f) (152)(364) (a b c)(d e f) = (163)(254) (a b c)(d e f)
This can be written as follows.πa(152)(364)(d e f) = (163)(254)(a b c) On comparing the cycles, we get the following:πa * 1 * 5 * 2 * 3 * 6 * 4 * (d e f) = 1 * 6 * 3 * 2 * 5 * 4 * πa * (a b c) This can be written as follows:π a = (153)(264)
Therefore, πa = (153)(264) satisfies the condition iα\(π^-1\)= β.
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In OPQ q=18 o=96 and P=142 find the length of p to the nearest centimeter
Answer:
1000000
Step-by-step explanation:
Answer:
111
Step-by-step explanation:
250 pounds = how many tons
The metric unit from pounds to tons is 250 pounds = 0.125 tons
Converting the metric unit from pounds to tonsFrom the question, we have the following parameters that can be used in our computation:
250 pounds = how many tons
As a general rule, we have
1 pound = 0.0005 tons
Multiply both sides of the equation by 250
So, we have
250 * 1 pound = 0.0005 tons * 250
Evaluate the products
250 pounds = 0.125 tons
Hence, the conversion is 250 pounds = 0.125 tons
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A total of 699 tickets were sold for the school play. They were either adult tickets or student tickets. There were 51 fewer student tickets sold than adult tickets. How many adult tickets were sold?
Answer:
Sold:
adults: 375 tickets
student: 324 tickets
Step-by-step explanation:
a + s = 699 Eq. 1
a = s + 51 Eq. 2
a = adult tickets sold
s = student tickets sold
Replacing Eq. 2 im Eq. 1
(s+51) + s = 699
2s + 51 = 699
2s = 699 - 51
2s = 648
s = 648/2
s = 324
From Eq. 2
a = 324 + 51
a = 375
Check:
From Eq. 1:
a + s = 699
375 + 324 = 699
Help me please!
Last Month , Kristin ate 24 nectarines and 126 grapes. If she eats the same amount of fruit every month , how many grapes has she eaten if she has eaten 720 nectarines ?
As you answer the following questions, write explanations for why your current answer is correct
The proportional relationship between the grapes and nectarine she ate is represented by y = 5.25x while the constant of proportionality is 5.25 and she ate 3780 grapes as she ate 720 nectarine
a) y = 5.25x
b) k = 5.25
c) 3780 grapes
What is ProportionsA mathematical concept called proportions contrasts the relationship between two or more quantities. They can be used to compare the size of one part to the size of the total and can be expressed as ratios, fractions, or percentages. For instance, if a pizza is divided into 10 equal slices and you consume 5 of them, the percentage of the pizza that you have consumed is 5/10, or 50%. The distribution of a categorical variable, such as the percentage of voters who supported a certain candidate in an election, is described in statistics using proportions.
In this problem, we can find the proportional relationship by calculating the constant of proportionality.
a)
24 nectarines = 126 grapes
1 nectarine = x grapes
cross multiply both sides and solve for x
1 * 126 = 24 * x
126 = 24x
x = 126 / 24
x = 5.25
Assuming the number of grapes is represented by y and nectarine by x
y = 5.25x
The proportional relationship is given as;
y = 5.25x
b)
The cross product can be used to solve proportions by setting up an equation that equates the two products. For example, if the proportion is a:b = c:d, the equation would be ad = bc. By using the cross product, the equation can be simplified and the proportion can be solved for one of the variables.
c)
To determine how many grapes she has eaten if she ate 720 nectarines
y = 5.25x
y = 5.25(720)
y = 3780
She ate 3780 grapes.
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You deposit $2500 in a bank account. Find the balance after 3 years for an account that pays 2.5% annual interest compounded monthly. Round to the nearest dollar.
The balance in the account after three years, rounded to the nearest dollar, is $2711.
To find the balance after three years for an account that pays 2.5% annual interest compounded monthly when $2500 is deposited in the account, you need to use the formula for compound interest.
A = P(1 + r/n)^(nt), whereA is the balance after three years, P is the principal amount ($2500), r is the annual interest rate (2.5%),
n is the number of times the interest is compounded per year (12 months), and t is the time in years (3 years).
Substituting the values in the formula,
we get:A = 2500(1 + 0.025/12)^(12*3)A
= 2500(1.00208333)^36A
= 2500(1.084297)A = $2710.74
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(a) how many paths are there from the point (0, 0) to the point (110, 111) in the plane such that each step either consists of going one unit up or one unit to the right? (b) how many paths are there from (0,0) to (210, 211), where each step consists of going one unit up or one unit to the right, and the path has to go through (110, 111)?
(a) The number of pathways in the plane from point (0, 0) to point (110, 111) when each step consists of walking one unit up or one unit to the right is known as the number of ways to go to a point in a grid using just right and up moves.
This is a classic combinatorial problem known as a binomial coefficient. The binomial coefficient C(110+111, 110) = C(221, 110) = 221!/(110!111!) is the number of ways to travel from (0, 0) to (110, 111).
(b) The number of paths from (0, 0) to (210, 111) where each step consists of walking one unit up or one unit to the right and the path must pass through (110, 111) is the product of two binomial coefficients.
First, as calculated in section 1, the number of pathways from (0, 0) to (110, 111) is C(110+111, 110) = C(221, 110). Second, there are C(210+211, 210) ways to get from (110, 111) to (210, 111). (210, 211). (421, 210). C(221, 110) * C is the total number of paths found by multiplying these two binomial coefficients (421, 210).
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The ratio of boys to girls in a classroom is 7 to 11. If
there are a total of 49 boys in the classroom, then how
Many boys and girls are there altogether?
Answer:
77 girls
Step-by-step explanation:
becasue 49 divided by 7 is 7. so you just multiply 11 by 7. ANd that will get you 77
Find the percent error in this situation:
Estimated value: 145
Actual value: 189
Answer:
30.3% im so sorry if this is wrong if it is u can report this :(
Step-by-step explanation:
Answer:
23.3%
Step-by-step explanation:
You have to first take the estimated value - the actual value
= 145-189 = -44
Then you want to take -44 divide the actual value which is 189
= -44 / 189= 0.232804233
Lastly, you want to take 0.232804233 and multiply it by 100
= 0.232804233 x 100= 23.28042328
Round that number to get
=23.3%
There is a bag filled with 3 blue and 5 red marbles.
A marble is taken at random from the bag, the colour is noted and then it is not replaced.
Another marble is taken at random.
What is the probability of getting at least 1 blue?
Answer:
There is a 38% chance at least 1 was blue
Step-by-step explanation:
there are 8 marbles total 3 being blue. 3/8= .375 = 38%
The probability of getting at least 1 blue marble in the given situation is 0.375, i.e., 37.5%.
Probability is the ratio of favorable outcomes to the total number of outcomes.
It is given that there are 3 blue and 5 red marbles in the bag.
Therefore, the total number of marbles in the bag is 8.
Let's take two scenarios, one when one blue marble and one red marble are drawn and the second one when both marbles drawn are blue.
Let B and R be the events of drawing a blue marble and red marble, respectively.
Case 1:
The probability of getting one blue and one red marble is calculated as follows:
\(P(B =1, R=1) = \dfrac{3}{8}\times\dfrac{5}{7}\)
\(= \dfrac{15}{56}\)
Note that the replacement is prohibited.
Case 2:
The probability of getting two blue marbles is calculated as follows:
\(P(B =2) = \dfrac{3}{8}\times\dfrac{2}{7}\)
\(= \dfrac{6}{56}\)
The probability of getting at least 1 blue marble is given as follows:
\(P(B\ge1) = P(B =1, R=1) + P(B =2)\)
\(= \dfrac{15}{56}+ \dfrac{6}{56}\\= \dfrac{21}{56}\\=\dfrac{3}{8}\\= 0.375\)
Therefore, the probability of getting at least a blue marble is 0.375.
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Protein Grams in Fast Food The amount of protein (in grams) in a variety of fast-food sandwiches is reported here. 38 44 35 29 26 25 42 27 43 24 27 30 23 57 35 26 27 26 35 29 40 35 33 31 27 24 34 Send data to Excel Part: 0/6 Part 1 of 6 What is the class width for a frequency distribution with 5 classes?
The class width for a frequency distribution with 5 classes is approximately 6.8.
The class width for a frequency distribution is determined by the range of the data and the number of classes. In this case, the number of classes is given as 5.
To calculate the class width, we first need to find the range of the data, which is the difference between the highest and lowest values. The given data set is: 38, 44, 35, 29, 26, 25, 42, 27, 43, 24, 27, 30, 23, 57, 35, 26, 27, 26, 35, 29, 40, 35, 33, 31, 27, 24, 34.
The highest value is 57 and the lowest value is 23. Therefore, the range is:
Range = highest value - lowest value
Range = 57 - 23
Range = 34
Now, to calculate the class width, we divide the range by the number of classes. In this case, the number of classes is 5.
Class Width = Range / Number of Classes
Class Width = 34 / 5
Class Width ≈ 6.8
So, the class width for a frequency distribution with 5 classes is approximately 6.8.
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