document.write( "Question 126636This question is from textbook Algebra Structure and Method
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document.write( ": I have been struggling on this problem for a while now and I was wondering if anyone could help me? I would deeply appreciate it!! Please and Thank you!!\r
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document.write( "Solving Problems Involving Inequalities
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document.write( "A collection of quarter and dimes is worth more than $20. There are twice as many quarters as dimes. At least how many dimes are there? \n" );
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Algebra.Com's Answer #92788 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! A collection of quarter and dimes is worth more than $20. There are twice as many quarters as dimes. At least how many dimes are there? \n" ); document.write( ": \n" ); document.write( "Write an equation for each statement: d = no. of dimes; q = no. of quarters \n" ); document.write( ": \n" ); document.write( "\"A collection of quarter and dimes is worth more than $20.\" \n" ); document.write( " .25q + .10d > 20.00 \n" ); document.write( ": \n" ); document.write( "\" There are twice as many quarters as dimes.\" \n" ); document.write( " q = 2d \n" ); document.write( ": \n" ); document.write( "At least how many dimes are there? \n" ); document.write( ": \n" ); document.write( "Substitute 2d for q in the 1st equation and find d: \n" ); document.write( ".25(2d) .10d > 20 \n" ); document.write( ".5d + .1d > 20 \n" ); document.write( ".6d > 20 \n" ); document.write( "d > \n" ); document.write( "d > 33.33 not possible so we can say At least 34 dimes \n" ); document.write( ": \n" ); document.write( "WE can check this, it means we have 68 quarters and 34 dimes \n" ); document.write( ".25(68) + .10(34) = 20.40 \n" ); document.write( "if we had only 33 dimes \n" ); document.write( ".25(66) + .10(33) = 19.80 less than 20 \n" ); document.write( ": \n" ); document.write( "Did I make this understandable here? \n" ); document.write( " |