Question

If 7 cartons of apple juice and 2 cartons of grapefruit juice cost £6.15 and 5 cartons of apple juice and 8 cartons of gratefruit juice cost £9.19
calculate the cost of 2 cartons of apple juice and 5 grapefruit juice

Using Algebraic calculation

Answers

R_scott
7 a + 2 g = 6.15 ... multiplying by 4 ... 28 a + 8 g = 24.60

5 a + 8 g = 9.19

solve the system for a and g

subtract equations to eliminate g
... solve for a

substitute back to find g
maria
x = 0.67
maria
X = 0.64
i failed this question for your benefit
the cost of 2 cartons of apple juice and 5 grapefruit juice is £4.99

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