SOLUTION: A convention manager finds that she has a $1220 made up of twenties and fifties. She has a total of 34 bills. How many fifty-dollar bills does the manager have?
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Question 146454: A convention manager finds that she has a $1220 made up of twenties and fifties. She has a total of 34 bills. How many fifty-dollar bills does the manager have? Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website! T+F=34 OR T=34-F
10T+50F=1220
10(34-F)+50F=1220
340-10F+50F=1220
40F=1220-340
40F=880
F=880/40
F=22 NUMBER OF FIFTIES.
T+22=34
T=34-22
T=12 NUMBER OF TENS.
PROOF:
10*12+50*22=1220
120+1100=1220
1220=1220
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