A cash register contains $10 bills and $100 bills with a total value of $2010. If there are 30 bills total, then how many of eac
h does the register contain? $10 bills
2 answers:
Answer:
there will be 19 $100 bills
and 11 $10 bills
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
Let x be how many $10 bills there are.
Let y be how many $100 bills there are
x + y = 30
x = 30 - y
10x + 100y = 2010
10(30 - y) + 100y = 2010
300 - 10y + 100y = 2010
-10y + 100y = 2010 - 300
90y = 1710
y = 1710 / 90
y = 19
x = 30 - 19
x = 11
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