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OpenStudy (anonymous):
A waiter earned $23 in tips in an hour. He was paid in $1 bills and $5 bills. Use a model to determine how many $5 bills he received if he received a total of 15 bills. 1 2 3 4
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OpenStudy (luigi0210):
x+y=15 x+5y=23 ----------------------------------- where x is one dollar bills and y is 5 dollar bills
OpenStudy (anonymous):
ughh idk
OpenStudy (luigi0210):
Use substitution or elimination to solve
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