Question

Chris needs to drive 24 miles to work. So far, he has driven 5.4 miles. How many more miles must he drive?

Answer 1

18.6 miles

Explanation:

Subtract Distance traveled from total distance

Total distance: 24 miles

Distance Traveled: 5.4 miles

24 - 5.4 = 18.6

Answer 2

18.6 miles

Explanation:

You want to know how many more miles Chris must drive if he has driven 5.4 of the 24 miles he intends to drive.

Sum

The sum of x = remaining miles and miles driven will be the total intended:

x + 5.4 = 24

Any sum can be rearranged to a difference:

x = 24 -5.4 . . . . . . subtract 5.4 from both sides of the equation

x = 18.6 . . . . . . . evaluate the difference

Chris must drive 18.6 miles more.

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