Hi !!
6(5)-3
27
hope this helps
A music store buys instruments and then sells them for 30% more than they paid.
During a 20% off sale, the store offers a clarinet for $93.60.
How much did the store pay for the clarinet?
if a number line plot starts from 2 (including the point) and extends towards positive infinity, the corresponding inequality is
Answer:
\(2 \leqslant y \leqslant \infty \)
Step-by-step explanation:
y is equal to 2 and goes up to infinity
The mass of an electron is approximately 9.1 x 10^-31 kilograms.
The mass of a proton is approximately 1.7 x 10^-27 kilograms.
Approximately how many times greater is the mass of a proton than the mass of a electron?
A. 5,500
B. 1,900
C. 19,000
D. 55,000
Answer:
1900
Step-by-step explanation:
hello bro how r u i think answer is 1835 but there is no option
The required mass of the proton is 1900 times the mass of the electron. Option B is correct.
What is proportionality?Proportionality is defined as between two or more sets of values, and how these values are related to each other in the sense are they directly proportional or inversely proportional to each other.
here,
The mass of an electron is approximately e = 9.1 x 10⁻³¹ kilograms.
The mass of a proton is approximately p = 1.7 x 10⁻²⁷ kilograms.
Now
p/e = 1.7 x 10⁻²⁷/9.1 x 10⁻³¹
p/e ≈ 1900
p = 1900e
Thus, the required mass of the proton is 1900 times the mass of the electron.
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HELP ME FAST PLS! I only have like an hour..
Answer:
2/10 and 0.2
Step-by-step explanation:
I am confused on this: "Find the area of a square with a perimeter of 20 inches"
Answer:
25 square inches
Step-by-step explanation:
A square has 4 congruent sides.
By knowing the perimeter of a square, you can find the length of a side.
perimeter = 4 * side
20 in. = 4s
s = 20 in./4
s = 5 in.
A side of this square measures 5 in.
Now we use the area formula to find the area of the square.
area = (side)^2
area = (5 in.)^2
area = 25 in.^2
Answer:
The area will be 25 inches.
Step-by-step explanation:
Hi! So, this might be a pretty easy question for some people, but I can see how it might be confusing.
If you want to find the area of a square, which has four equal sides, it's pretty easy. You just need to know the length of one side instead of two different lengths, because both are equal!
The question gives you the perimeter, which is 20 inches. To get the perimeter of something, like this square, you add up all the sides. All you have to do to find the length of one side is divide the total sum of the sides, 20 (perimeter!) by the number of sides you have, four!
Note: This won't work with things like rectangles. You can only do things like this with squares, because you know ahead of time that all of the sides will be equal.
So! 20 divided by the number of sides, 4, is five!
Know we know all we need to be able to find the area of the square. To find the area, all you have to do is multiply the length of the square (5) by the width of the square (also 5!) That's 25, which is the area of your mystery square.
Hope you understand and this helps!
Brandon came home from school and informed his mother that he had volunteered to make cookies for his entire grade level.He needs 3 cookies for each of the 36 students in seventh grade. Unfortunately, he needs the cookies the very next day! Brandon and his mother determined that they can fit 96 cookies on two cookie shIs the number of cookies proportional to the number of cookie sheets used in baking?
Create a table that shows data for the number of sheets needed for the total number of cookies baked.
Number of pans
Number of cookies
2
36
4
72
10
180
16
288
The unit rate of x/y is __________.
Constant of Proportionality:_______.
Explain the meaning of the constant of proportionality in this problem?
Two pounds of peaches cost $4.50, 5 pounds cost $11.25, and 10 pounds cost $22.50. Show that the relationship between the number of pounds of peaches and the cost is a proportional relationship.
Y Cost
$4.50
X pounds
2
k=y/x Write an equation where y is the cost and x is the number of pounds.
Answer:
72
Step-by-step explanation:
what are reflex angles? I don't know what they are so just tell me in the most simple way possible of what reflex angles are so I can understand plz. Also can you tell in the simplest way how to solve a reflex angle problem? Thank you, Have a good day :)
Answer:
A reflex angle is an angle that is always bigger than 180 but smaller than 360. So for example 270 is a reflex angle.
Step-by-step explanation:
the same thing as an obtuse angle!
Step-by-step explanation:
a angle that is more than 90 degrees but less than 180 degrees. not sure what a reflex problem is but if you give it to me I can try and help!
If a radius of a sphere is divided by 2, will the surface area be divided by 2?
Work out the size of angle m.
Answer:
78+25+61+55+64=283
360-283=77
180+77=257
) Evaluate the expression 6n² – 15 when n=5 6n to the second power minus 15 = 6 ( blank) to second power minus 15
The value of the expression is 145.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
6n² - 15
Now,
Substitute n = 5
6n² - 5
= 6 x 5² - 5
= 6 x 25 - 5
= 150 - 5
= 145
Thus,
The value of the expression is 145.
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please please please please help me I need to get 100 on this paper
Answer:
1. slope = 12
y-intercept = 1/3
2.slope = 1/4
y-intercept= -12
3.slope = 3
y-intercept = 2
Step-by-step explanation:
When you get an equation for a graph, the co-efficient infront of the x (The number by the x) is the slope.
The equation for the y-intercept:
When solving for y-intercept, you replace y in the equation with 0 and make x the subject.
Example:
y = 12x - 4
0=12x - 4
-12x = -4
divide both sides by negative 12 since we want only positive x
\(\frac{-12x}{-12} =\frac{-4}{-12}\)
x = \(\frac{1}{3}\)
Therefore, the y-intercept = 1/3
HELP HELP HEEEEEEEEEELP!
There are 5 cockroaches crawling on each square meter of the front of this building. How many cockroaches are crawling on the front of the building?
Please show your work and explain. Thanks!!!
Answer:
^60 or id know
Step-by-step explanation:
Answer:
I might or might not be right but i think the answer is ^60.
I hope this helped u .
Step-by-step explanation:
please write a function for the points (1/3,0) (-2 3/4,0) and (0,-5) and explain the steps.
thank you!
The function for the points are y = -15x - 5
How to determine the functionFrom the information given, we have that;
The points are;
(1/3,0) (-2 3/4,0) and (0,-5)
Using the point-slope form of a linear equation, we have;
y - y₁ = m(x - x₁)
Such that;
m is the slope of the liney - y₁ and (x - x₁) are the pointsUsing (1/3, 0) and (0, -5), we have that the slope is;
m = (0 - (-5))/0 -1/3)
expand the bracket
= 5 / (-1/3)
= -15
Now, take any of the given points and substitute the values
Using (1/3, 0), we get;
y - 0 = -15(x - 1/3).
y = -15x - 5.
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The function for the points solved by (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)
We have given the points:
(1/3,0) (-2 3/4,0) and (0,-5)
Using the formula of linear equation
\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)
Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)
that is 1/3 = \(a\), 0 = \(a_{1}\) and
0 = \(b\), -5 = \(b_{1}\)
\(x\) refers to the slope of line (take any variable)
Now for finding the value of \(x\),
\(x=a-a_{1}/b-b_{1}\)
inserting the values,
\(x=[0-[-5]]/[0-1/3]\\x= -15\)
Substitute the value of \(x\) in the equation
\(a-0=-15[b-1/3]\)
By simplifying the equation, we get
\(a=-15b-5\)
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Math question someone pls explain how to answer it I am stuck pt.6
Answer:
1/5 or 20%
Step-by-step explanation:
Probability = favorable outcomes
total num. of outcomes
Probability = 2
10
Find the GCF, 2.
2 ÷ 2 = 1
10 ÷ 2 = 5
1/5
sorry if it's wrong
Answer:
The probability of choosing a green shirt is 20%=1/5=.2
Step-by-step explanation:
find the total amount = 10
Find the total of question (probability of choosing green) = 2
set as a fraction:
Numerator = amount needed (2)
Denominator = all things/objects involved (10)
PS*
With probability there is a good chance the answer is going to be less than 1 or 100%, knowing that can help to tell which number goes in what place of the fraction
ex:
10/2=5=500% (this can't be the answer)
So Flip it 2/10=.2=20% (This seems more of a reasonable answer)
pls help i need this in by monday
Answer:
1. 35x+18 2. 16x-32 3. 10x-20 4. 28x+8. Code: FCAH
Step-by-step explanation:
Answer:
Step-by-step explanation:
1. Any sides that have the same line thing have the same side, so the unknown side is also 7x + 8. Now add all of them together to get 35x + 18
2. All sides are the same on a square, so 4(4x - 8) = 16x - 32
3. All sides on a pentagon are the same, so 5(2x -4) = 10x -20
4. All sides on a rhombus are the same in a similar way to a square, so
4(7x + 2) = 28x + 8
In the diagram, PQR = QRS = RST = 90 degree, PQ = QR = RS = 5cm and ST = 1cm.
Given that PUT and RS intersect at V, find the length of QU.
The length of the line segment QU diagram containing three right triangles is 3 centimeters.
How find a missing length in a triangle system by similarity propertiesIn the figure given below we have a system of three distinct right triangles connected by three colinear segments. Given that the three triangles are similar, we can make of geometry properties for similarity to determine the length of the missing line segment.
In this question we must find a missing length by similarity properties, which is represented mathematically by proportions. From the figure we have the following relationship:
5/y = (5 - x)/(5 - y) = x/1 (1)
From (1) we have the following two formulas:
x = 5/y (2)
x = (5 - x)/(5-y) (3)
(2) in (3):
y = 3
The length of the line segment QU diagram containing three right triangles is 3 centimeters. \(\blacksquare\)
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What's the answer to? ? x (2 x 8) = (3 x 2) x 8
HELP PLEASE I REALLY NEED HELP
Help me please il give 20 points!
Answer: 1. a. 15 b. 11 c. 2 d. 7 e. 5.5
2. Stem: Leaf:
1 9
2 5, 9
3 3, 3, 8
4 0, 7, 9
5 4, 5
6 1, 5
7 2, 7
8 1
3. a. 13 inches b. I'm pretty sure that it is the second quarter because there is more snow. c. The first quarter because it's section is more spread out among the numbers.
Step-by-step explanation:
Make sure to show your work!
6. 1/6 ÷ 5 =
A. 30
B.1/30
C. 3 1/6
Please help!
Answer:
B. 1/30
Step-by-step explanation:
1/6 ÷ 5 = 1/6 × 1/5 = 1/30
how far was 14.5 from 14.4
Answer:
.1
Step-by-step explanation:
14.5-14.4=.1
Pls help! Will give brainliest!!
Considering area (A) of garden as 30 square feet:
30 = x(2x+7)
Now we need to expand it:
x(2x+7) = 2x^2 + 7x
2x^2 + 7x = 30
Adding this into an Algebra calculator gives us 5/2 or 2.5
So x = 2.5
To prove this:
2(2.5) + 7 = 12
14 * 2.5 = 30
Simplify the expression below. (3^5)^3
3^3
3^5
3^8
3^15
Answer:
14348907
Step-by-step explanation:
3^15 is it put in scientific notation.
Answer:
14348907
Step-by-step explanation:
Allen uses the claw part of a hammer to remove a nail from a piece of wood. This lever does not make Allen stronger, but it helps him to complete the task using less force.Explain how this lever works.
Answer:The lever operates by applying forces at different distances
Step-by-step explanation:
1/2 divided by -1/7 answers please?
Answer:
-\(\frac{7}{2}\) or -3\(\frac{1}{2}\)
Step-by-step explanation:
1/2 ÷ -1/7
1/2 × -7
-7/2
ANSWER ALL THE QUESTIONS TO GET MARKED BRAINLYEST
Answer: 7/10, 7/10 and 3/10.
Step-by-step explanation:
7/10 = Between 1 and 10, the multiples of three are 3, 6, and 9. So the amount favourable outcomes is the total minus the multiples, 10-3 = 7. So 7/10.
7/10 = Between 1 and 10, the multiples of 2 are 2, 4, 6, 8, and 10. The multiples of 3 are 3, 6 and 9. That, gives 7 favourable outcomes (6 is a multiple of both but counted once) giving the probability of 7/10.
3/10 = The favourable outcome is 8 and above, so: 8, 9 and 10. There are 3 favourable outcomes which gives the probability of 3/10.
1) 43.36 - 23.23
2) 75.12 + 20.13
3-12) Create 10 problems of your own and solve them. (5 addition and 5 subtraction
can you also pls create 10 promblems to? i dont get this one
(4.5y +9)-(6.2-3.1y)= 7.2y+2.8
Answer:
0
Step-by-step explanation:
(4.5y+9)-(6.2-3.1y)=7.2y+2.8
4.5y+9-6.2+3.1y=7.2y+2.8
4.5y+3.1y+9-6.2=7.2y+2.8
7.6y+2.8=7.2y+2.8
7.6y-7.2y=2.8-2.8
0.4y/0.4=0/0.4
y=0
I hope this helps
2, 3, 5, 9, 17, 22, 31, 39
Regina kept track of the points she scored during her team’s first eight basketball games. What is Regina’s mean score?
Responses
A 3939
B 1616
C 3737
D 1313
E 17
Answer:
Mean = 16
Step-by-step explanation:
MEAN can be find bg the sum of all score divided by the amount of the score.
Mean = total amount / number of amount
Total amount = 2 + 3 + 5 + 9 + 17+ 22 + 31 + 39
= 128
number of amount = 2, 3, 5, 9, 17, 22, 31, 39
= 8
Then we can calculate mean as
Mean = 128/8
Mean = 16
Help me??? please?? thank youuu
Answer:
B
Step-by-step explanation:
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Answer:
Step-by-step explanation:
Supplementary angles have a sum of 90 degrees.
a+52=90
a=90-52
a=38 degrees