Question 1024814
Hi there,
Make dimes = x
quarters = y
x + y = 70......(1)
10x + 25y = 1330.....(2)Multiply Eq(1) by 25
25x + 25y = 1750....(1)
10x + 25y = 1330.....(2)
Subtract Eq(2) from Eq(1)
15x = 420
x = 420/15
x = 28
Substitute x = 28 into Eq(1)
x + y = 70
28 + y = 70
y = 70 - 28
y = 42
angel had 28 dimes and 42 quarters.
Hope this helps :-)