document.write( "Question 353396: i have $2.05 in quarters and dimes. i have 4 more quarters than dimes. what is the equation for this? trying to help my niece , it's truly been years.thanks \n" ); document.write( "

Algebra.Com's Answer #252565 by nerdybill(7384) $\"\"$ $\"About$

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i have $2.05 in quarters and dimes. i have 4 more quarters than dimes. what is the equation for this?
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\n" ); document.write( "Let d = number of dimes
\n" ); document.write( "then from \"i have 4 more quarters than dimes\" we have
\n" ); document.write( "d+4 = number of quarters
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\n" ); document.write( "Our equation comes from: \"i have $2.05 in quarters and dimes\":
\n" ); document.write( ".10d + .25(d+4) = 2.05
\n" ); document.write( ".10d + .25d+1 = 2.05
\n" ); document.write( ".35d+1 = 2.05
\n" ); document.write( ".35d = 1.05
\n" ); document.write( "d = 1.05/.35
\n" ); document.write( "d = 3 (number of dimes)
\n" ); document.write( ".
\n" ); document.write( "Quarters:
\n" ); document.write( "d+4 = 3+4 = 7 \n" ); document.write( "

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