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
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
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