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ale4655 [162]
3 years ago
9

Write and solve a system of equations that represents each situation. Interpret the solution. 

Mathematics
2 answers:
asambeis [7]3 years ago
7 0
Let $5 bills be denoted by x and $10 bills be denoted by y.

x + y = 12 \\
y = 5x  \\ \\ x + (5x) = 12 \\ \\ 6x = 12 \\ \\ => x = 2 \\ \\ y = 5x \\ \\ or, y = 5(2) \\ \\ => y = 10

Thus, there are 2 5$ bills and 10 10$ bills.
ValentinkaMS [17]3 years ago
6 0
X - $5 bills
y - $10 bills

x + y = 12
y = 5x

x + (5x) = 12
6x = 12
x = 2

y = 5(2)
y = 10

10 $10 bills and 2 $5 bills
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