document.write( "Question 1189838: two mechanics worked on a car. the first mechanic charged 65$ per hour. the second mechanic charged $90 per hour. The mechanics worked for a combined total of 15 hours, and together they charged a total of $1100. how long did each mechanic work \n" ); document.write( "
Algebra.Com's Answer #821328 by Alan3354(69443)\"\" \"About 
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two mechanics worked on a car. the first mechanic charged 65$ per hour. the second mechanic charged $90 per hour. The mechanics worked for a combined total of 15 hours, and together they charged a total of $1100. how long did each mechanic work
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\n" ); document.write( "f + s = 15 --- total hours
\n" ); document.write( "65f + 90s = 1100 --- cost
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