How Much Does One Apple Cost?

Answer: 0.28
Step-by-step explanation:
give banana = x and apple = y
2x + y = 1.12 --- 1
x + y = 0.70 --- 2
1 - 2
= (2x + y) - (x + y) = 1.12 - 0.70
2x + y - x - y = 0.42
x = 0.42
so apple ; 0.42 + y = 0.70
= 0.28
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