document.write( "Question 160966: Amanda has some pennies, nickels, dimes, and quarters in her piggy bank. There is more than $1.50 and less than $2.25. Using the clues, determine how much money Amanda has.
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document.write( "-there are 4 times as many nickels as quarters
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document.write( "-there are twice as many quarters as dimes
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document.write( "-there is an equal number of pennies and dimes\r
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document.write( "Thank you for you help!! \n" );
document.write( "
Algebra.Com's Answer #118631 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Amanda has some pennies, nickels, dimes, and quarters in her piggy bank. There is more than $1.50 and less than $2.25. Using the clues, determine how much money Amanda has. \n" ); document.write( ": \n" ); document.write( "Write an equation for each statement: \n" ); document.write( ": \n" ); document.write( "\"-there are 4 times as many nickels as quarters\" \n" ); document.write( "n = 4q \n" ); document.write( ": \n" ); document.write( "\"-there are twice as many quarters as dimes\" \n" ); document.write( "q = 2d \n" ); document.write( ": \n" ); document.write( "\"-there is an equal number of pennies and dimes\" \n" ); document.write( "p = d \n" ); document.write( ": \n" ); document.write( "Write a total$ equation within the given range \n" ); document.write( ".01p + .05n + .10d + .25q = 2.00 \n" ); document.write( ": \n" ); document.write( "try to get everything in terms of d: \n" ); document.write( "In the 1st equation, substitute 2d or q (from the 2nd equation) \n" ); document.write( "n = 4(2d) \n" ); document.write( "n = 8d \n" ); document.write( ": \n" ); document.write( "Substitute: \n" ); document.write( ".01d + .05(8d) + .10d + .25(2d) = 2.00 \n" ); document.write( ".01d + .40d + .10d + .50d = 2 \n" ); document.write( "1.01d = 2 \n" ); document.write( "d = \n" ); document.write( ": \n" ); document.write( "Make a solution by multiplying 1.01 * 2, so the total is $2.02, then we have: \n" ); document.write( "d = \n" ); document.write( "d = 2 dimes \n" ); document.write( "then \n" ); document.write( ".01(2) + .40(2) + .10(2) + .50(2) = 2 \n" ); document.write( ".02 + .80 + .20 + 1.00 = $2.02 \n" ); document.write( ": \n" ); document.write( "Find the number of each coin using d = 2: \n" ); document.write( "p = d; 2 pennies \n" ); document.write( "n = 8d: 16 nickels \n" ); document.write( "d = 2 dimes \n" ); document.write( "q = 2d; 4 quarters \n" ); document.write( "; \n" ); document.write( ": \n" ); document.write( "Confirm solution from this: \n" ); document.write( ".01(2) + .05(16) + .10(2) + .25(4) = \n" ); document.write( ".02 + .80 + .20 + 1.00 = $2.02 is Amanda's total \n" ); document.write( ": \n" ); document.write( "There are probably other ways to do this. Did this make sense to you? \r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |