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Pepsi [2]
3 years ago
5

A family has some five-dollars and one- dollars bills in their wallet. Altogether she has 18 bills and a total of 62$. how many

of each bill does she have?
Mathematics
2 answers:
pantera1 [17]3 years ago
7 0
X=$5, y=$1
x+y=18
y=18-x

5x+y=62 (take the equation y=18-x and plug into y)
5x+(18-x)=62 (combine like terms)
5x-x+18=62(subt. 5x and x)
4x+18=62 (subt. 18 from both sides)
4x=62-18
4x=44(now divide by 4)
x=44/4
x=11(now take 11 and plug into the equation x+y=18, 11+y=18=y=18-11, y=7
so it would be 11=$5 bills and 7-$1 bills.
viktelen [127]3 years ago
6 0
There would be eleven $5 dollar bills = 55
and there would be seven $1 dollar bills = 7
55+7 = 62

Hope this helps!

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