document.write( "Question 175614: Sally has seven times as many dimes as nickels. Their value is $3.00. How many nickels does she have? \n" ); document.write( "

Algebra.Com's Answer #130690 by Mathtut(3670) $\"\"$ $\"About$

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lets call the # of dimes and nickels , d and m, respectively
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\n" ); document.write( "d=7n.....eq 1
\n" ); document.write( ".1d+.05n=3....eq 2
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\n" ); document.write( "take d's value of 7n in eq 1 and plug it into eq 2
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\n" ); document.write( ".1(7n)+.05n=3
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\n" ); document.write( ".75n=3
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\n" ); document.write( " $\"highlight%28n=4%29\"$ nickels
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\n" ); document.write( " $\"highlight%28d=7%284%29=28%29\"$ dimes \n" ); document.write( "

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