Answer:
25/8
Step-by-step explanation:
turn 3 into a fraction with the denominator (multiply by 8 to find the numerator)~ 24/8
add 1/8 to get 25/8
The fraction 3 1/8 when written as an improper fraction is 25/8
How to write the fraction as an improper fractionFrom the question, we have the following parameters that can be used in our computation:
Fraction = 3 1/8
When converted to an improper fraction, we have
Numerator = 3 * 8 + 1
Evaluate
Numerator = 25
The denominator remains the same
So, we have
Fraction = 25/8
Hence, the improper fraction is 25/8
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A mathematics teacher wanted to see the correlation between test scores and homework. The homework grade (x) and test grade (y) are given in the accompanying table. Write the linear regression equation that represents this set of data, rounding all coefficients to the nearest tenth. Using this equation, estimate the homework grade, to the nearest integer, for a student with a test grade of 31.
Homework Grade (x) Test Grade (y)
58 52
75 66
66 68
85 74
52 38
74 65
78 76
The linear regression equation that represents this set of data is given as follows:
y = 1.05x - 10.43.
The estimated homework grade for a student with a test grade of 31 is given as follows:
39.46.
How to find the equation of linear regression?To find the regression equation, also called line of best fit or least squares regression equation, we need to insert the points (x,y) in the calculator.
The points for this problem are given as follows:
(58, 52), (75, 66), (66, 68), (85, 74), (53, 38), (74, 65), (78, 76).
Inserting these points into a calculator, the equation is given as follows:
y = 1.05x - 10.43.
The estimated homework grade for a student with a test grade of 31 is x when y = 31, hence:
31 = 1.05x - 10.43
x = 41.43/1.05
x = 39.46.
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Debora plans to sew 3 blankets for each of her nieces.
Which equation represents how many blankets, b, Debora will sew for n nieces?
Use your answer to question 6 to help you check if you have the correct equation.
A
3b = n
B
n + 3 = b
C
3n = b
D
nb = 3
Answer:
C
Step-by-step explanation:
3 blankets per 1 niece so
3 per n is = to the number of b
Answer:
C
Step-by-step explanation:
3 blankets per 1 niece so
3 per n is = to the number of b
Pls hurry!!!!! What’s the code?????
MATHEMATICS POST I)
Find the interest on $1,200 at 5 1/2% annual interest for 9 months,
Answer:
$1200×5½×9
100
$1200×11×9
100×2
6×11×9=$594
Can I get help plzzz
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
The N is Odd
Step-by-step explanation:
HOPE THIS HELPS!!!!!!
Pls help due in 40 minutes Pls I will give brainliest But pls only right answers
Answer:
6. 15.2
Step-by-step explanation:
60.8 divided by 4 so the constant is 15.2 because 15.2 x 4 is 60.80
Look at the stem-and-leaf plot. What is the median of the numbers?
A) 100
B) 82
C) 79.73
D) 36
Answer:
B. 82
Step-by-step explanation:
The easiest way to find a median on a stem-and-leaf plot, is to simply count the number of "leaves" and find the middle. There is 21 numbers in the leaf column, so the 11th one is the middle. Or you could count from both sides until you reach the middle. The median of the leaves is the 2 in the middle row. This matches with the stem of 8, making the actual number 82.
Michael has a bag of marbles. The frequency of selecting each color is recorded in the table below. Outcome Frequency Green 4 Black 6 Orange 5 Based on the given frequency, determine the experimental probability of selecting a black marble. 0.27 0.33 0.40 0.60
help asap if answer is correct and provided explanation i will give brainiest.
Reason:
6 black out of 4+6+5 = 15 total
6/15 = 0.40 is the experimental probability of selecting black.
Side note: The term "empirical probability" is the same as "experimental probability".
The experimental probability of selecting a black marble will be 0.40. The correct option is C.
What is probability?Probability is a number that indicates the likelihood of an event occurring. Probability is defined as the ratio of favourable outcomes to all outcomes.
Probability = Number of favourable outcomes / Number of samples
Given that Michael has a bag of marbles. The frequency of selecting each colour is recorded in the table below. Outcome Frequency Green 4 Black 6 Orange 5.
Number of favourable outcomes = 6
Number of samples = 4+6+5 = 15
Probability = Number of favourable outcomes / Number of samples
Probability = 6 / 15
Probability = 0.40
Therefore, the probability will be 0.40.
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Which describes the sequence of transformations used to obtain the image (triangle A’) from the pre-image (triangle A)?
dilation by a scale factor of 2, then rotation of 180° about the origin
dilation by a scale factor of 2, then a reflection over the x-axis
dilation by a scale factor of 1/2, then a rotation of 180° about the origin
dilation by a scale factor of 1/2. then a reflection over the x-axis
Answer:
C : dilation by a scale factor of 1/2, then a rotation of 180° about the origin
Step-by-step explanation:
please helpppppppp i don't understand
Answer: 3.6
Step-by-step explanation: the answer is 3.6 because when you do 5.845 to the nearest one you get 6 and when you round 0.56 to the nearest tenth you get 0.6 so in all, that's how I got my answer.
(Pls mark me brainliest tysm!)
HELP ME PLZ RIGHT NOW
Answer:
im guessing 53p
Step-by-step explanation:
i dont know that much about theses though so sorry
What is the total surface area of the square pyramid below? A square pyramid. The square base has side lengths of 10 centimeters. The triangular sides have a height of 14 centimeters. 100 cm2 200 cm2 280 cm2 380 cm2
Answer:
380 cm^2
Step-by-step explanation:
10*10=100(base square)
Each triangle= (14*10) /2=70
4 sides, so therefore: 70*4=280
280+100=380
Since the square base has side 10 cm and triangular side has height 14 cm, the total surface area of square pyramid is 380 cm²
To answer the question, we need to find the total surface area of the square pyramid
Total surface area of a square pyramid.Since a square pyramid has a square base and four triangular sides, its surface area, A = area of square base + 4 × Area of triangular side.
Area of square base
Area of square with side, L is A = L²
Area of triangular base
Area of triangle with height, h and base, L which is the length of the square base is A' = 1/2Lh
So, total surface area of square pyramid is A" = L² + 4 × 1/2Lh
= L² + 2Lh
Given that the length of the square base is 10 cm and the height of the triangular side is 14 cm.
We have that
L = 10 cm and h = 14 cmSo, substituting the values of the variables intot he equation, we have
A" = L² + 2Lh
A" = (10 cm)² + 2 × 10 cm × 14 cm
A" = 100 cm² + 280 cm²
A" = 380 cm²
So, the total surface area of square pyramid is 380 cm²
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will mark brainliest ONLY if you explain how it is the correct ;3
the largest number of four digits exactly divisble by 88 is:
a)9768
b)8888
c)9988
d)9944
Answer: D
Divide each number by 88
9768 ÷ 88 = 111
8888 ÷ 88 = 101
9988 ÷ 88 = 113.5
9944 ÷ 88 = 113
Since D is the largest whole number the answer is D
The table below represents how much money Jaycee earns babysitting.
Hours
Worked Income
($) (income)
6 | 45.00
9 | 67.50
11 | 82.50
18 | 135.00
How much did Jaycee receive per hour?
$6.00
$7.50
$13.50
$4.50
Answer:
$7.50
Step-by-step explanation:
You can figure this out by taking the amount of money made and dividing it by the hours worked. 45/6 = 7.50. 67.50/9 = 7.50 etc
i need answer quick look at the picture
Answer: b
Step-by-step explanation: she wanted to
Answer:
B I think Or it might be D
Math please help 15 pts NEEDED IN 30-40MINS
Answer:
The volume of the Styrofoam collar is 1583.36
Hope this helps!
Step-by-step explanation:
The volume of a cylinder is \(\pi r^{2} *h\).
First, find the volume of the entire cylinder : \(\pi\) × \(5^{2}\) × 24, which would give us 1884.95559... . Find the volume of the smaller cylinder ( \(\pi\) × \(2^{2}\) × 24 ) which would be 301.5928947... . Subtract the two get 1583.36269745... .
lets evaluate 81^-3/4.
Answer:
1/ 27
Step-by-step explanation:
\( = 81^{ \frac{-3}{4} } \)
\( = (\frac{1}{81}) ^{ \frac{3}{4} } \)
\( = (\frac{1}{3}) ^3 \)
\( = \frac{1}{27} \)
Towers
Customers
(thousands)
Towers
- The table shows the number of cell phone towers a company will build
as the number of its customers increases.
PART A
Is the relationship between number of towers and number of customers
proportional? Explain.
5.25
252
6.25
300
7.25
348
9.25
444
PART B
If there are 576 towers, how many customers does the company have?
Write a proportion you can use to solve.
Answer:
you can attach a link to the photo from your camera roll. easier to read that way than like this
The figure formed by (−3, 2), (−4, 1), and (−1, −5) is translated 3 units right and 5 units up. What are the coordinates of the new figure?
(0, 7), (−7, −4), (2, −10)
(−6, −3), (−7, −4), (−4, −10)
(0, 7), (−1, 6), (2, 0)
(−6, −3), (−1, 6), (−4, 0)
Translating the figure involves chaging the position of the figure
The coordinates of the new figure are (0, 7), (1 , 6), and (2, 0)
The coordinates of the new figure
The coordinates are given as:
(−3, 2), (−4, 1), and (−1, −5)
The rule of translation 3 units right and 5 units up is:
(x + 3, y + 5)
So, we have:
(−3 + 3, 2 + 5), (−4 + 3 , 1 + 5), and (−1 + 3, −5 + 5)
Evaluate the sum
(0, 7), (-1 , 6), and (2, 0)
Hence, the coordinates of the new figure are (0, 7), (1 , 6), and (2, 0)
Round 0.0078 to the nearest thousandths.
0.0078
0.008
0.0088
0.08
Answer:0.0088
Step-by-step explanation:
PLEASE HELP NOWWW ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Triangle LMN is drawn with vertices at L(−4, −1), M(0, −1), N(−4, −3). Determine the image vertices of L′M′N′ if the preimage is rotated 90° clockwise.
L′(4, 1), M′(0, 1), N′(4, 3)
L′(−4, −1), M′(0, −1), N′(−4, −3)
L′(−1, 4), M′(−1, 0), N′(−3, 4)
L′(1, −4), M′(1, 0), N′(3, −4)
Answer:
it's c buddy
Step-by-step explanation:
i did this arldy
The image vertices of L′M′N′ if the preimage is rotated 90° clockwise are,
⇒ L′(- 1, 4), M′(-1, 0), N′(- 3, 4)
What is Coordinates?A pair of numbers which describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines is called the coordinates.
Given that;
Triangle LMN is drawn with vertices at L(−4, −1), M(0, −1), N(−4, −3).
Now, We know that;
The rule of rotation 90° clockwise is,
⇒ (x, y) = (y, - x)
Thus, We get;
L = (- 4, - 1)
L'= (- 1, 4)
M = (0, - 1)
M' = (- 1, 0)
N = (- 4, - 3)
N' = (- 3, 4)
Hence, The image vertices of L′M′N′ if the preimage is rotated 90° clockwise are,
⇒ L′(- 1, 4), M′(-1, 0), N′(- 3, 4)
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Question 7(Multiple Choice Worth 5 points)
(05.01 LC)
Which equation can be used to calculate the area of the shaded triangle in the figure below?
[ image ]
A // 2(12 + 4) = 32
B // fraction 1 over 2(12 + 4) = 8
C // 2(12 × 4) = 96
D // fraction 1 over 2(12 × 4) = 24
Answer:
D
Step-by-step explanation:
Area of the triangle is (12 x 4)/2 = 12 x 4 x 1/2 = 24
Please help if you do thank you! :D
How would you classify the relationship between the two angles (2x+6 and 96) in the figure on the right?? Based on that classification, what is true about the measures of those two angles? Then find the value of x.
The photo is attached. :]
Answer:
They are vertical angles, all vertical angles are congruent, x=45.
Step-by-step explanation:
2x+6=96, subtract 6 from each side, => 2x=96, divide both sides by 2, => \(\frac{2x}{2}\)=\(\frac{96}{2}\)
x=45.
WILL GIVE BRIANLEST!!!!!!!!!!!
Six times a number is 42. What is the number?
42
n
n
n
n
n
n
6
7
36
48
Answer:
The answer is 7.
6 × 7 = 42
If u check ur tables book I will see that six times seven is forty two
Answer:
The answer is 7
Step-by-step explanation:
6×X=42
x=42/6
x=7
Help
What are the chances of choosing a black marker out of a bag containing 3 red markers, 5 blue markers, 3 yellow markers, and 4 black markers?
Answer: 16/225
Step-by-step explanation:
i did the math
The function f(x) is shown on the graph.
On a coordinate plane, a curved line with 3 arcs, labeled f of x, crosses the x-axis at (negative 2, 0), (negative 1, 0), (1, 0), and (3, 0), and the y-axis at (0, negative 6).
What is f(0)?
0 only
–6 only
–2, 1, 1, and 3 only
–6, –2, 1, 1, and 3 only
The value of f(x) is 0 at f(0) is at –2, 1, 1, and 3 only, the correct option is C.
What is a Function?A function is a law that relates a dependent and an independent variable.
The curved line has 3 arcs.
x f(x)
-2 0
-1 0
1 0
3 0
0 -6
f(0) is where y = 0 and x has some value
f(0) is at –2, 1, 1, and 3 only.
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what is the measure of ∠x
Step-by-step explanation:
Here x and 80° are supplementary angle so...
x + 80° = 180°
x = 180° - 80°
x = 100°
⚠️HOMEWORK!⚠️GIVING BRAINLIEST TO WHOM CAN DO THE NUMBER LINE TOO! "Kyra is participating in a fundraiser walk-a-thon. She walks 2 miles in 30 minutes. if she continues to walk at the same rate, determine how many minutes it will take her to walk 7 miles. Use a double number line diagram to support your answer."
Answer:
Ok first let's find the even number below 7 which will equal 6 so if it took her 30 min to run/walk 2 miles so it's basically 30x3=90 min but there is that seven so if it took her 30 min to run/walk 2 miles 30 divided by 2= 15 so your total amount of min she ran/walked will be 105 min or 1 hour and 45 min. Happy New Years and I hoped this helped you
Answer: 105 minutes or 1 hour and 45 minutes
Step-by-step explanation: