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3 years ago

Could someone solve these? Will give brainiest.

Mathematics

2 answers:

qwelly [4]3 years ago

8 0

M-9=(-18)
m=-9

x/11=3
x=33

-4+7v=17
v=21

-14r=126
r=-9

-3x-10=32
x=-14

N76 [4]3 years ago

4 0

Answer:

-9 33 3 -9 -14

Step-by-step explanation:

Do you need step by step if so tell me

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Plz help!!!! Number 23

Minchanka [31]

Answer:

(0 + m)/2, (0 + n)/2.

Step-by-step explanation:

The x coordinate of the midpoint must be halfway between the x coordinates of A and B, and the y coordinate must be found in the same way.

So the midpoint is (0 + m)/2, (0 + n)/2.

7 0

3 years ago

A school club is raising money for a trip, and needs to reach $10,000. Their fundraising progress is modeled by the function

Sloan [31]

D I'M POSITIVE ITS D

3 0

3 years ago

Read 2 more answers

Write the linear equation in slope intercept form 2x+By=16

allochka39001 [22]

Answer:

Part 1) $y=-\frac{2x}{B}x+\frac{16}{B}$

Part 2) $y=-\frac{1}{4}x+2$

Step-by-step explanation:

Part 1)

we know that

The equation of the line in slope intercept form is equal to

$y=mx+b$

we have

$2x+By=16$

Isolate the variable y

subtract 2x both sides

$By=-2x+16$

Divide by B both sides

$y=-\frac{2x}{B}x+\frac{16}{B}$

Part 2)

we know that

The equation of the line in slope intercept form is equal to

$y=mx+b$

we have

$2x+8y=16$

Isolate the variable y

subtract 2x both sides

$8y=-2x+16$

Divide by 8 both sides

$y=-\frac{2x}{8}x+\frac{16}{8}$

Simplify

$y=-\frac{1}{4}x+2$

3 0

3 years ago

The top of a desk is shaped like a trapezoid. The bases of the trapezoid are 26.5 and 30 centimeters long. The area of the desk

Stolb23 [73]

Answer:

28 centimeters.

Step-by-step explanation:

Let w be width of desk.

We have been given that the bases of the trapezoid are 26.5 and 30 centimeters long. The area of the desk is 791 square centimeters long.

Since the area of trapezoid is half the sum of parallel sides times its height.

$\text{Area of trapezoid}=\frac{h}{2}*(a+b)$ , where

h= Height of trapezoid,

a and b= Length of parallel sides of trapezoid.

We have been given that the height of the trapezoid is the width of the desk.

Upon substituting our given vales in above formula we will get,

$791=\frac{w}{2}*(26.5+30)$

$791=\frac{w}{2}*(56.5)$

$791=w*28.25$

$w=\frac{791}{28.25}$

$w=28$

Therefore, the width of trapezoid is 28 centimeters.

5 0

3 years ago

14 out of 20 students pack their lunches. what percent of students pack their lunches?

saveliy_v [14]

Think of it as a fraction (14/20). If you multiply 20 by 5, you get 100. Whatever you do to the bottom, you have to do to the top. So 14 x 5 would be 70. The entire fraction would be 70/100 or 70%.

7 0

3 years ago