Algebra questions need help

Algebra
Tutor: None Selected Time limit: 1 Day

Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 5 hours. Together they charged a total of $1775. What was the rate charged per hour by each mechanic if the sum of the two rates was $130 per hr

Mar 28th, 2015

Two mechanics charged 130 * 5 = $650 for the time they worked together.

The first mechanic charged 1775 - 650 = $1125 for 15 hours that he worked alone or 1125/15 = $75 /hour.

The second mechanic charged $130 - $75 = $55 / hour.

Mar 28th, 2015

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