Question

Lena drive 696 miles in 12 hours. At the the same rate, how long would it take her to drive 522 miles?

Answer 1

It would take Lena 9 hours.

Explanation:

Looking at the problem I can do 696/12 to get the number of miles per hour she is traveling which is 58. With this number, I can take 522/58 to get 9 hours.

Answer 2

Explanation:

Remark

The best way to do this is to set up a proportion. It can be done by using d = r * t twice, but a more direct way is to use the proportion.

Formula

distance1 / time1 = distance2 / time2

Givens

distance1 = 696 miles

time1 = 12 hours

distance2 = 522 miles

time2 = x

Solution

696/12 = 522/x Cross multiply

696 * x = 522* 12 Combine the right

696 * x = 6264 Divide by 696

x = 6264/696

x = 9 miles