N3E9p21

Problem 21:

Discuss whether the following problems can be solved by proportions.

A.)        A transportation crew is paving a road that is 50 miles long.

         The first day, they pave 1 mile.  Each day therafter, the crew can pave one

         more mile than was paved the day before.  How many days will it take to

         pave the road?

B.)         When Jim is 6 years old his father is 33.  How old will Jim be when his father is 39?

C.)         For every two hours worked, Sue will receive $6.45.  How much will Sue have made after working 112 hours?