Question

A construction crew needs to build a road that will be 20 miles long. The crew already completed a stretch that is 6.44 miles long and another that is 8.62 miles long.

How much more road does the construction crew need to build?

Answer 1

The answer is 15.3.

Answer 2

4.94 miles

Explanation:

Total that needs to be built: 20 miles

Already built: 6.44 miles and 8.62 miles

Already built: 6.44 miles + 8.62 miles = 15.06 miles

Amount still to be built: 20 miles - 15.06 miles = 4.94 miles

Answer: 4.94 miles