Story Problem

Question

A manufacturer of tools selling rechargeable drills to a chain of home improvement stores charges $4 more per drill than its manufacturing cost, m. The chain then sells each drill for 170% of the price that it paid the manufacturer.. Find a function P(m) for the price at the home improvement stores.

Please explain how to solve. Thanks!

Answer 1

Look for ways to break word problems into pieces, then handle them one at a time to build an equation.

 

First, find what the manufacturer charges the store chain.

cost to store: m+4

The store then charges 170% of its cost. 

170%=1.7

Selling price is cost times 1.7

P(m) = 1.7(m+4)