document.write( "Question 59288: You have 20 stampes that have a total value of $6.62. Some of the stamps are worth $0.24 each and others are worth $0.37 each. How many stamps of each type do you have? Please show how to solve this question. \n" ); document.write( "

Algebra.Com's Answer #40646 by funmath(2933) $\"\"$ $\"About$

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You have 20 stampes that have a total value of $6.62. Some of the stamps are worth $0.24 each and others are worth $0.37 each. How many stamps of each type do you have?
\n" ); document.write( "It's easier to deal with money in terms of cents to avoid decimals.
\n" ); document.write( "Let the number of 24 cent stamps be:x
\n" ); document.write( "then because there is 20 stamps all together the number of 37 cent stamps is:20-x
\n" ); document.write( "The total value is: 662 cents
\n" ); document.write( ":
\n" ); document.write( "24x+37(20-x)=662
\n" ); document.write( "24x+740-37x=662
\n" ); document.write( "-13x+740=662
\n" ); document.write( "-13x+740-740=662-740
\n" ); document.write( "-13x=-78
\n" ); document.write( "-13x/-13=-78/-13
\n" ); document.write( "x=6
\n" ); document.write( "The number of 24cent stamps: x=6
\n" ); document.write( "The number of 37 cent stamps:20-x=20-6=14
\n" ); document.write( ":
\n" ); document.write( "Check, if you had 6 $.24 stamps and 14 $.37 stamps would the value be $6.62?
\n" ); document.write( "6(.24)+14(.37)=6.62 ?
\n" ); document.write( "1.44+5.18=6.62 ?
\n" ); document.write( "6.62=6.62 !!! We're right!!!
\n" ); document.write( "Happy Calculating!!! \n" ); document.write( "

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