# Chapter 2 - Solving Equations - 2-6 Ratios, Rates, and Conversions - Practice and Problem-Solving Exercises - Page 121: 24

$0.09 #### Work Step by Step 1) The first step is to find out how many weeks our razors will last. So 10 razors x 1 week = 10 weeks. 2) 10 weeks = 70 days 3) 10 razors cost 6.30 dollars, and since they last 70 days, you would have to divide 6.30 dollars by 70 days, which would give you$0.09.

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