Question

Melissa drove 638 miles in 11 hours.

At the same rate, how long would it take her to drive 464 miles?

Answer 1

Answer: 8 hours

Explanation:

1. Set up a proportion to help guide your thinking.

`(638miles)/(11hours)=(464miles)/(xhours)`

We're trying to solve for
`x` to find out how long it took Melissa to drive 464 miles.

2. Solve the proportion by cross-multiplying.

`((638)/(11)=(464)/(x))=(638x=5104)`

3. Divide each side by 638 to get
`x` by itself.

`(638x)/(638)=(5104)/(638)`

4. Simplify

`x=8`

It took Melissa 8 hours to drive 464 miles.