document.write( "Question 1171536: A collection of 40 coins is worth $2.90. The collection consists only of nickels and dimes. What is the total value of the dimes?
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Algebra.Com's Answer #796438 by MathTherapy(10557) $\"\"$ $\"About$

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\n" ); document.write( "A collection of 40 coins is worth $2.90. The collection consists only of nickels and dimes. What is the total value of the dimes?
\n" ); document.write( "I am in eighth grade and in quarantine, I have a test on Friday that my grade relies on to go from 70 to an 80, if you would like to help me with this problem that would be great, thank you!
\n" ); document.write( "

Let number of dimes be D
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document.write( "Then number of nickels = 40 - D
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document.write( "We then get: .1D + .05(40 - D) = 2.9
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document.write( ".1D + 2 - 05D = 2.9
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document.write( ".1D - .05D = 2.9 - 2
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document.write( ".05D = .9
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document.write( "Number of dimes, or 
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document.write( "With number of dimes being 18, value of dimes =  \n" );
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