document.write( "Question 692795: one month revenue from the 95 repairs at an auto shop totaled $10,020. The average charges for the repairs on personal and commercial vehicles were $125 and $90 respectively. Find the number of each vehicle repaired. \n" ); document.write( "
Algebra.Com's Answer #427093 by stanbon(75887)\"\" \"About 
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one month revenue from the 95 repairs at an auto shop totaled $10,020. The average charges for the repairs on personal and commercial vehicles were $125 and $90 respectively. Find the number of each vehicle repaired.
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\n" ); document.write( "Quantity::: A + B = 95 repairs
\n" ); document.write( "Value::::: 90A +125B = 10,020 dollars
\n" ); document.write( " -----
\n" ); document.write( "Multiply thru the top equation by 90
\n" ); document.write( "90A + 90B = 90*95
\n" ); document.write( "90A +125B = 10,020
\n" ); document.write( "----
\n" ); document.write( "Subtract and solve for \"B\"
\n" ); document.write( "35B = 1470
\n" ); document.write( "B = 42 (# of $125 repairs)
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\n" ); document.write( "Solve for \"A:
\n" ); document.write( "A + B = 95
\n" ); document.write( "A + 42 = 95
\n" ); document.write( "A = 53 (# of $90 repairs)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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