The equation 9+12m=6+15(m-1) models the following situation: Movie-rental company A

Mathematics

1 answer:

Marizza181 [45]3 years ago

5 0

Answer:

Start by distributing the 15 to the (m-1). 9+12m=6+15m-15. Then combine like terms. 9+12m=15m-9. Next move the variable all to one side, it doesn't matter which variable you choose. I'll use 12m so when I subtract I am still left with a postive coefficient. To move the 12m we subtract it from both sides of the equation. We are left with 9=3m-9. Next we isolate the m by canceling out the 9. We do this by adding 9 to both sides. We are left with 18=3m. Finally, to completely isolate the m, we must divide both sides by the coefficient, 3. The result is 6=m. The answer is 6 months. You can check this by plugging 6 back into the equation where there is an m. (sorry for the long answer)

Step-by-step explanation:

You might be interested in

A Right Triangle (ABC) has sides measuring 3 inches and 4 inches. The hypotenuse is 5 inches. A similar right triangle (A'B'C')

fenix001 [56]

Answer:

The length of hypotenuse is 12.5

Step-by-step explanation:

First 7.5 x 7.5 = 56.25

Then 10 x 10 = 100

Add them together 56.25 + 100 = 156.25

Then square root 156.25 and you get 12.5

8 0

3 years ago

Read 2 more answers

Hi there can anyone help me out with this please

matrenka [14]

Simple interest,
FV=P(1+ni)
FV=future value=2500
P=present value, invested amount
n=number of years, =3
i=annual interest rate, =0.095
2500=P(1+3(0.095))
Solve for P.

8 0

4 years ago

(-1,7),(5,7)what is the distance between ordered pairs

trapecia [35]

Answer:

Exact Form:

2 √ 10

Decimal Form:

6.32455532

Step-by-step explanation:

Use the distance formula to determine the distance between the two points.

√ ( -5+7 ) 2 + ( 7 − 1 ) 2