Problema Solution

Sam received a cost of living increase. His new hourly wage is 13.75 per hour. If the cost of living index was 2.2 percent, what was his hourly wage before the increase?

Answer provided by our tutors

Let x be Sam's hourly wage before the increase


1.022x = 13.75


by solving we find:


x = $13.45


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Sam's hourly wage before the increase was $13.45 per hour.