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Rick bought 3 apples and 2 oranges for a cost of $1.55. Kim bought 4 apples and 3 3 oranges for a cost of $2.15. Find the cost of one apple.
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Rick bought 3 apples and 2 oranges for a cost of $1.55. Kim bought 4 apples and 3

3
oranges for a cost of $2.15. Find the cost of one apple.

User Jagmal
by
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1 Answer

3 votes
Apples cost $0.35 each

Apples = x
Oranges = y

3x + 2y = 1.55
4x + 3y = 2.15

I like the substitution method
2y = -3x + 1.55
y = -1.5x + 0.775

4x + 3(-1.5x + 0.775) = 2.15
4x - 4.5x + 2.325 = 2.15
-0.5x + 2.325 = 2.15
-0.5x = -0.175
x = 0.35

User Achyut Kr Deka
by
6.4k points
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