hudsonmaryanne hudsonmaryanne

29-07-2015
Mathematics

Answered

A plumber earns $15 per hour more than her apprentice. For a 40-hour week, their combined earnings are $2200. What is the hourly rate for each person?

Verified Answer :

29-07-2015

Say the apprentice earns x dollars an hour, and the plumber earns x+15 dollars per hour. Write the equation:

40(x+x+15)=2200

Dividing by 40, we see that:

2x+15=55

Subtracting 15, we see that 2x=40, so x=20. As a result, the apprentice earns $20 an hour, and the plumber earns #35 per hour.

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