Скачать или смотреть Follow Us for more SAT Math Practice. Answer is b. Step by step solution in description.

Follow Us for more SAT Math Practice. Problem:
If n apples cost x dollars, which of the following expressions gives the cost of 30 apples, in dollars?

A) 30n
——
x
B) 30x
———
n
C) n
———
30x
D) 30
———
n

Solution:

Answer is b.
Solution:
—————
let’s walk through this step-by-step:
The problem states that if n apples cost x dollars, then the cost of 1 apple is x/n dollars.
The question is asking for the cost of 30 apples.
To find the cost of 30 apples, we take the cost of 1 apple (x/n) and multiply it by 30.
So the cost of 30 apples is:
(30) * (x/n) = 30x/n

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