Question

Cornell drives 3 times the hours that Deborah does. Cornell and Deborah drive for a total of 8 hours. How long did each person drive?

Answer 1

Answer: Let's call the number of hours Deborah drives "d" and the number of hours Cornell drives "c".

We know that:

c = 3d (because Cornell drives 3 times the hours that Deborah does)

and

c + d = 8 (because they drive for a total of 8 hours)

We can use the first equation to substitute the value of c in the second equation:

3d + d = 8

4d = 8

d = 2

So Deborah drives 2 hours.

Now we can use the first equation to find the number of hours Cornell drives:

c = 3d

c = 3(2) = 6

So Cornell drives 6 hours.

Explanation: