Answer:
Algebra book weighs 24 oz
Grammar book weighs 15 oz
Step-by-step explanation:
algebra = x and grammar = y
x = 2y-6
5x = 8y
5(2y-6) = 8y
10y - 30 = 8y
2y - 30 = 0
2y = 30
y = 15
x = 2(15)-6
x = 30-6
x = 24
Answer:
Sylvia needs 12 l of orange juice and 9 l of pineapple juice.
Step-by-step explanation:
triple means multiplying by 3
so multiply 4 l of orange juice by 3 and 3 l of pineapple juice by 3