document.write( "Question 324398: a collection of 130 coins of quarters and dimes.each coin is worth 4 times its face value, collection is worth $94.00 How many of each type of coin? \n" ); document.write( "
Algebra.Com's Answer #232523 by ankor@dixie-net.com(22740)\"\" \"About 
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a collection of 130 coins of quarters and dimes.
\n" ); document.write( "each coin is worth 4 times its face value, collection is worth $94.00
\n" ); document.write( "How many of each type of coin?
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\n" ); document.write( "Let x = no. of quarters
\n" ); document.write( "then, since there are 130 coins,
\n" ); document.write( "(130-x) = no. of dimes
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\n" ); document.write( "multiplying the face values by 4, we have:
\n" ); document.write( ".4(130-x) + 1.00(x) = 94
\n" ); document.write( "52 - .4x + 1.0x = 94
\n" ); document.write( "x - .4x = 94 - 52
\n" ); document.write( ".6x = 42
\n" ); document.write( "x = \"42%2F.6\"
\n" ); document.write( "x = 70 quarters
\n" ); document.write( "and
\n" ); document.write( "130 - 70 = 60 dimes
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\n" ); document.write( ":
\n" ); document.write( "Check solution: 4[.10(60) + .25(70)] = $94
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