document.write( "Question 939277: Laura has $4.50 in dimes and quarters. She has 3 more dimes than quarters. How many quarters does she have? \n" ); document.write( "
Algebra.Com's Answer #572567 by ankor@dixie-net.com(22740)\"\" \"About 
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Laura has $4.50 in dimes and quarters.
\n" ); document.write( " She has 3 more dimes than quarters.
\n" ); document.write( " How many quarters does she have?
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\n" ); document.write( "Let d = no. of dimes
\n" ); document.write( "let q = no. of quarters
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\n" ); document.write( "Write an equation for each statement
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\n" ); document.write( " Laura has $4.50 in dimes and quarters.
\n" ); document.write( ".10d + .25q = 4.50
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\n" ); document.write( "She has 3 more dimes than quarters.
\n" ); document.write( "d = q + 3
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\n" ); document.write( "In the 1st equation, replace d with (q+3)
\n" ); document.write( ".10(q+3) + .25q = 4.50
\n" ); document.write( ".10q + .3 + .25q = 4.50
\n" ); document.write( ".10q + .25q = 4.50 - .30
\n" ); document.write( ".35q = 4.20
\n" ); document.write( "q = 4.20/.35
\n" ); document.write( "q = 12 quarters
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\n" ); document.write( "That answers the question but to check it, find the no. of dimes
\n" ); document.write( "Use the 2nd equation
\n" ); document.write( "d = 12 + 3
\n" ); document.write( "d = 15 dimes
\n" ); document.write( "Check this in the 1st equation
\n" ); document.write( ".10(15) + .25(12) =
\n" ); document.write( "1.50 + 3.00 = 4.50\r
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