document.write( "Question 1068557: the cost of a long-distance phone call is $0.41 for the first minute and $0.32 for each additional minute. if the total charge for a long-distance call is $5.21, how many minutes was the call? \n" ); document.write( "

Algebra.Com's Answer #683878 by MathTherapy(10551) $\"\"$ $\"About$

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the cost of a long-distance phone call is $0.41 for the first minute and $0.32 for each additional minute. if the total charge for a long-distance call is $5.21, how many minutes was the call?
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With C(m) being the total cost, based on \"m\" minutes, the  following equation is formed: C(m) = .32(m - 1) + .41
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document.write( "C(m) = .32m - .32 + .41
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document.write( "C(m) = .32m + .09
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document.write( "5.21 = .32m + .09 ------- Replacing C(m) with 5.21
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document.write( "5.21 - .09 = .32m
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document.write( "5.12 = .32m
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document.write( "m, or time call lasted =  \n" );
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