Question 447751
5x+3y=47
4x-2y=20
10x+6y=94
12x-6y=60
22x=154
x=7
y=4
The two numbers are 7 and 4.
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x+y=15
.05x+.25y=1.75
5x+25y=175
5x+5y=75
20y=100
y=5
x=10
Mary has 10 nickels and 5 quarters..