document.write( "Question 88526: Sure, it’s a word problem, but here, you just need to write an inequality (no graphs, please!) Part (a) of Example 5 on p. 641 is the best model in the text for solving this problem. Things to think about: How much, in dollars, is a dime worth? How much is a quarter worth in dollars? Finally, compared to Example 5, note that “at least” would be a direct opposite to “at most” in deciding which inequality (“>”, “<”, “≥”, or “≤”) to use…. \r
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document.write( "38) Number problem. You have at least $30 in change in your drawer, consisting of dimes and quarters. Write an inequality that shows the different number of coins in your drawer.\r
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Algebra.Com's Answer #64396 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! 38) Number problem. You have at least $30 in change in your drawer, consisting of dimes and quarters. Write an inequality that shows the different number of coins in your drawer. \n" ); document.write( ": \n" ); document.write( "The basic equation; d = no. of dime, q = no. of quarters \n" ); document.write( ": \n" ); document.write( ".10d + .25q => 30 \n" ); document.write( "Or \n" ); document.write( ".10d => 30 - .25q \n" ); document.write( "Or \n" ); document.write( ".25q => 30 - .10d \n" ); document.write( ": \n" ); document.write( "dimes equation \n" ); document.write( ".10d => 30 \n" ); document.write( "d => 300 - 2.5q; divided both sides by .1 \n" ); document.write( ": \n" ); document.write( "quarters equation \n" ); document.write( ".25q => 30 - .10d \n" ); document.write( "q => 120 - .4d; divided both sides by .25 \n" ); document.write( ": \n" ); document.write( "For example: \n" ); document.write( "The dime equation shows that if you have 0 quarters you need at least 300 dimes \n" ); document.write( "and \n" ); document.write( "The quarter equation shows that if you 0 dimes, you need at least 120 quarters \n" ); document.write( ": \n" ); document.write( "Did this help? \n" ); document.write( " |