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brilliants [131]
3 years ago
12

Does the point (-9, 18) satisfy the equation y = -2x? yes no

Mathematics
1 answer:
GaryK [48]3 years ago
5 0

Answer:

Yes

Step-by-step explanation:

If you plug the numbers into the equation and solve it

18 = -2(-9)

18 = 18

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Factor by grouping.<br> 7ax-7bx-2ay+2by
miv72 [106K]

Answer:

(7x-2y)(a-b) Here is the answer!

Step-by-step explanation:

Your welcome btw! :D

4 0
3 years ago
The points (2, r) and (5, -9) lie on a line with slope – 2. Find the missing coordinate r.
Veseljchak [2.6K]

Answer:

-3

Step-by-step explanation:

5-2 is three

3 times -2 is -6

-9-(-6) is -3

(2,-3)

3 0
3 years ago
The length of a rectangle is four times the width. The perimeter of the rectangle is 45 inches. Write a system of equations that
wolverine [178]

Answer:

Let l be the length and w the width of the rectangle.

P as the perimeter and A as the area.

length of a rectangle is four times the width:

w = w

l = 4w

System of equation : 2l + 2w = P

Substitute:

2(4w) + 2w = 45

8w + 2w

10w = 45

w = 45 / 10

w = 4.5

Solve for l:

l = 4w

l = 4(4.5)

l = 18

Area:

A = lw

A = 18(4.5)

A = 81 in²

8 0
4 years ago
Read 2 more answers
Solve a variable source <br><br> x-7=15
mezya [45]

Answer:

x = 22

Step-by-step explanation:

x = 7 + 15

x = 22

4 0
3 years ago
Read 2 more answers
A town's population has been growing linearly. In 2003, the population was 59.000 and the population has been growing by 1,700 p
Rudiy27

Answer:

In 2003, the population was 59000 and the population has been growing by 1,700 people each year.

A.

The equation will be:

59000+1700x = (population 'x' years after 2003)

For x, you plug in the amount of years after 2003.

Like if it is the year 2003, the population is 59000+1700(0)

= 59000

when it is year 2005, the population is 59000+1700(2)

= 62400

B.

The town's population in 2007 will be :

(2007-2003=4)

59000+1700(4)

Population = 65800

C.

59000+1700x=77700

=> 1700x=18700

x = 11

Means 2003+11=2014

Hence, by year 2014 the population will be 77700.

5 0
3 years ago
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