Question

It cost $0.25 to use a dryer at a laundromat for 15 minutes. The expression

Answer 1

$\Large\boxed{\tt Answer:~2 ~dollars}$

$\tt Step-by-step~explanation:$

See how many times 15 can go into 120.

$\tt \frac{120}{15} =8$

If 15 • 8 is 120, then the cost would have to multiply by 8.

$\tt 0.25*8= 2$

It costs $2.00 to use the dryer for 120 minutes.

We can also use the equation to help. We plug in 120 for m and solve.

$\tt 0.25(20)=30\\30 \div 15 = 2$

We still end up with the same result: $2.00 for 120 minutes.