How much orange juice at 42¢ a liter should be mixed with grapefruit juice worth 32¢ a liter to make 200 liters of a mixture worth 36¢ a liter?

If x represents the amount of orange juice used, then which of the following expressions represents the total cost of the grapefruit juice used?

0.32x

0.32 (200 - x)

0.32 (x + 200)

Question

Mathematics

Cloe Pittman

11 September, 02:08

How much orange juice at 42¢ a liter should be mixed with grapefruit juice worth 32¢ a liter to make 200 liters of a mixture worth 36¢ a liter?

If x represents the amount of orange juice used, then which of the following expressions represents the total cost of the grapefruit juice used?

0.32x

0.32 (200 - x)

0.32 (x + 200)

+3

Answers (1)

Know the Answer?

Rachael Greer · Answer 1

X = the amount of orange juice that still has to be mixed

If it says that the total of the juice will be 200 liters, then (200-x) = the amount of grapefruit juice that still needs to be mixed.

The grapefruit juice amount would be: 200 - 80 = 120 liters