Mathematics Middle School

There are 22 boys and 18 girls in a class. What is the probability of randomly
selecting a girl?

Answers

Answer 1

Answer:

18/40

Step-by-step explanation:

Simplified 9/20

Answer 2
18/40 chance, or 9/20

Related Questions

Figure AA is a scale image of figure BB
Figure A maps to figure B with a scale factor of 1 1/2

Answers

Answer: x=3

Step-by-step explanation:

We know that the triangle got smaller. When you dilate by a scale factor of something, you multiply to make a number bigger or smaller. So x÷1.5= 2

x= 2x1.5

x= 3

Solve the given equation.



6p = 72

Answers

the answer is p=12....

6p=72

divide by 6 on each side

and get p=12

hope this helps

Mark each of the following as true or false and explain how you know.

- 5 < 3

- 5 > 3

|- 5| < 3

|- 5| > 3

Answers

True
False
False
True

(I think)
1) True, -5 is left to 3 on a number line, therefore it is less than 3.
2) False, 3 is right to -5 on a number line, therefore it is greater than -5.
3) False, |-5| is equal to 5 and 5 is right to 3 on a number line, therefore |-5| is greater than 3.
4) True, |-5| is equal to 5 and 5 is right to 3 on a number line, therefore |-5| is greater than 3.

let me know if you have any questions :)

Help please this is making me lose braincells- Giving brainliest

Answers

Answer:

d - costa - number of attendees

If budget is $99, then the equation is:

99 = a + 96a = 99 - 96a = 3

Maximum number of attendees is 3

What is a function? Why is domain (input) and range (output) important when defining a function?

Answers

Answer:

A function is a relationship in mathematics where for each input, there is one and ONLY one output.

What percent of the Cruisers attended between 7 and 16 car shows?

a
25%
b
50%
c
75%
d
100%

Answers

75% of the cruisers attended between 7 and 16 car shows

Answer:

c. 75%

Step-by-step explanation:

Solve the equation. Check your solution. :) Thanks!

-32 = 4b


A. 8


B.-8


C. 128


D. -128

Answers

Hi!

-32 = 4b

4b = -32

b = -32 : 4

b = -8

Answer -8

Steps:

You would have to get rid of 4 in the 4b so you would need to divide 4 on both side of the equation
b/4=-32/4

B= -8

Simplify
(-24 )- (12) +7 - (-7)

A. -12
B. -36
C. 36
D. 12

Answers

-12 because if we remove the parentheses and evaluate the problem we could get -12
by any chance are any of them a misprint? I got -22

Please, please help me!

Answers

Answer:

y= -8

Step-by-step explanation:

5 + -8 = -3

-3 + -8 = -11

Answer:

the person who wrote the answer first is correct.

Step-by-step explanation:

y = -8

Help me please I’ll give Brainlest

Answers

i’d say random number generator for this one. i hope this works !
Tbh I would use a dice but that’s just me

Below is the graph of equation y=-lx-2l+2. Use this graph to find all values of x such that

a. y>0
b.y<0
c. y=0

THIS IS AN RSM promblem Please Help

Answers

The graph is a linear function defined by several pairs of coordinates, and the computation for x and y values is as follows.

Graph equation

y=−|x−2|+2

When x=0

then

y=−|0−2|+2

y=−|−2|+2

y=−2+2

y=0

When x=1

then

y=−|1−2|+2

y=−|−1|+2

y=−1+2

y=1

When x=2

then

y=−|2−2|+2

y=−|0|+2

y=−0+2

y=2

When x=3

then

y=−|3−2|+2

y=−|1|+2

y=−1+2

y=1

When x=4

then

y=−|4−2|+2

y=−|2|+2

y=−2+2

y=0

When x=5

then

y=−|5−2|+2

y=−|3|+2

y=−3+2

y=-1

Hence, the value of (x, y) are as follows

y=0 x=0

y=1 x=1

y=2 x=2

y=1 x=3

y=0 x=4

y=-1 x=5

Learn more about graphs:
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can someone explain, please?

Answers

You have to find the square root of 169, then add the square root of 169 by 7




Hope this helped :)
You’d have to get the square root of 169 which is 13 then you add 7 to 13 (13+7) which is 20

So the answer to the question would be 20

I need help ASAPP!! includes brainliest

Answers

Answer:

80 gallons

Step-by-step explanation:

looking at t=0 the graph is at 80, unless there is more info I would say that the inital  value was 80 gallons.

Answer: It is 80

Step-by-step explanation: The initial value, or y-intercept, is the output value when the input of a linear function is zero. It is the y-value of the point at which the line crosses the y-axis.

Solve the given equation.



t + 7 = 5

Answers

T= -2


It is really simple, just subtract positive 7 from 5 in order to get T alone and get -2
t= -2 lol you move the 7 to the other side so that’s -7+5 which is -2 and the t is my itself

Help me please with this math question! giving brainliest to the correct answer

Answers

Answer:

Step-by-step explanation:

Answer: 1125 cm (squared)

To find the answer use this formula:
1/2*base*height


This should help you, all u have to do is plug in the numbers.

Mark me the brainiest if I helped you!!

The following table shows the distance from Tessa's house to several different locations.

Answers

Answer
0.5

Explanation
I am not 100% sure but I think it’s correct

!!!*BRAINLIEST*!!!

An Olympic swimming pool measures 164 feet long, 82 feet wide, and 9.8 feet deep. It takes approximately 7.48 gallons of water to fill 1
cubic foot of the pool. Approximately how many gallons of water are needed to fill the swimming pool?

A. 985,792 gallons
B. 10,983 gallons
C. 17,619 gallons
D. 1,913 gallons

Answers

Answer:

A

Step-by-step explanation:

Area = length times height times width

Area = 164 x 82 x 9.8

= 131790.4

Multiply by 7.48 since it takes 7.48 gallons to fill a cubic foot then you find the answer of A.

the answer is a 985,792

A cylinder with a radius of 5 feet and height of 2 feet.

What is the surface area of a cylinder with a radius of 5 ft and a height of 2 ft?
60Pi ft2
70Pi ft2
96Pi ft2
150Pi ft2

Answers

Answer:

B, 70pi ft2

Step-by-step explanation:

The equation to find surface area of a cylinder is 2(pi)(r)(h)+2(pi)(r)^2. So now plug the numbers in.. 2(pi)(5)(2)+2(pi)(5)^2 now, simplify. 20pi+50pi= 70pi ft2.

the correct answer is 70Pi ft2

using this formula: A=2πrh+2πr2, substitute r for 5 and h for 2 and put it like this:

a = 2π x 5 x 2 + 2π x 5 squared

2 x 5 x 2 = 20

a = 20π + 2π x 5 squared

5 squared = 25

a = 20π + 2π x 25

multiply 2 by 25 which equals 50

a = 20π + 50π

add 20 and 50 which gives you 70 making the final answer: a = 70π ft 2

Which is the solution set for the following inequality

A + 2 1/2 <6

Answers

Answer:

Step-by-step explanation:

A can be anything more than 3 1/2

Hope that helps! :)

-Aphrodite

Help me please with this math question! giving brainliest to the correct answer

Answers

base - i cant tell if it’s multiplication or a decimal but if it’s a decimal base is 3.4 if it’s multiplication 12

height - 3.52

area - 1/2 x 3.4(might be 12) x 3.52 = 5.984
Ok the answer is below:
Length of the base is 7.1
Length of the height is 3.52
So plug the these two numbers in for the last two boxes :

1/2*7.1*3.52

Mark me the brainiest if I helped you!!

Find the area of the triangle.

Answers

Answer:

52.5

Step-by-step explanation:

Answer:

Step-by-step explanation:

A=hb/2

Putting values

= (5)(21) /2

= 52.5

Jeff drew a line through (0, 0) and (7, 7) and said it was the line of best fit for the data.

Part A: Explain why Jeff's line is NOT the best fit.
Part B: What would be a better line of best fit for the scatter plot?
Part C: How does the actual line of best fit compare with Jeff's line?

Answers

Answer:

The line of best fit would not be right because there would be a big gap of space. The line should be the cooardinate 7,3 as this covers the line and the cooardinate 7,7 is an outlier. The new line is more accurately placed

Step-by-step explanation:

Answer:

The actual line of best fit would be from (0, 0) to (7, 4), this is because it covers majority of the points. All the other points are just anomalies. Moreover, Jeff's line is NOT the line of best fit because it is not accurate and is out of place. Furthermore, the actualy line of best fit is 3 places lower on the y-axis then Jeff's line of best fit.

Can you help me and see if these are valid conclusions? 7th grade

Answers

Answer:

jsbeuebaujwhwiwhwu

Step-by-step explanation:

ebsibwiajei2hie

Can someone helppp meee

Answers

Answer:

To find the radius, divide the diameter by 2;

V={π(r^2)h}/3

={3.14(4^2)*9 cm^3}/3

=3.14*16*3 cm^3

=150.72 cm^3

Select the correct answer from each drop-down menu.

For this data set, the best measure of center is the
, and its value is
.

Answers

Answer:

The best measure for center is median and its value is 60 .

Step-by-step explanation:

MEDIAN MEASURES MIDDLE ; 60 is in the middle .

Median for the first one and it’s is for the second one 60

what shape is sometimes a rhombus
a. parallelogram
b.rectangle
c.square
d. trapezoid

Answers

Answer:

a

Step-by-step explanation:

definition of a rhombus is that each side is congruent and has 2 sets of parallel sides. and definition of w parallelogram is just two sets of parallel sides meaning a rhombus can be a parallelogram

brainlist

Which formulas will you use to find the area of this irregular figure? Select all that apply.
A = one-half b h
A=b+h
A=bh
A=2bh
A=2(b+h)

Answers

Your answer would be A=2bh

Here, two formulas we will use to find the area of this irregular figure.

A = one-half b × h

A=b + h

What is the area of a right-angle triangle?

The area of a right-angle triangle is = one-half × base × height = one-half b h.

What is the area of a parallelogram?

The area of a parallelogram = base × height = b h.

We can easily divide this irregular figure into a right-angle triangle and a parallelogram.

Hence, A = one-half b × h and A=b + h; two formulas will be required to find the area of this irregular figure.

Learn more about the area of an irregular figure here: https://brainly.com/question/23449437

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Can u plase help its just box plots !!! if you do tysm and remeber your loved

Answers

Answer:

2. Class A

3. Class B

4. 22

5. $375

Step-by-step explanation:

If you need explanations comment

Does anyone know how to solve if you do plss help answer the question with work shown and an explanation of how you got your answer NO LINKS OR DOING IT JUST FOR THE POINTS Will give brainliest

Answers

1. 5 units to the right and 8 units down
2. 2 units to the right and 9 units down


that’s all i know that i think is right. i’m super sorry i can’t help with the rest.

55. A rhombus has side length 10 cm, and the longer diagonal measuring 10 cm.
Find L the exact length of the other diagonal.

Give your answer as a radical. Fully simplify your answer.

Answers

i think it might be [tex]\sqrt[5]{3}[/tex] but im not sure

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