Posted by kc on Wednesday, April 18, 2012 at 11:20pm.
a bank teller has 52 $5 and $10 bills in her cash drawer. the value of the bills is $460. how many $5 bills are there?
add up the value of the bills:
5x + 10(52-x) = 460
5x + 520 - 10x = 460
5x = 60
x = 12
check:
5(12) + 10(40) = 60 + 400 = 460
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