Question

Martina combined different amounts of water, vinegar, and rubbing alcohol to make 38 milliliters (ml) of a solution for a science experiment. The amount of water was x ml. The amount of vinegar was 8 ml less than that of water, and the amount of rubbing alcohol was half the amount of vinegar. This is represented in the equation below:

x + (x − 8) + one half (x − 8) = 38

What was the difference in the amounts of water and rubbing alcohol Martina combined?
8 ml
14 ml
18 ml
20 ml

Answer 1

@imqwerty

Answer 2

x + x - 8 + x/2 - 4 = 38
2x + x/2 = 38 + 8 + 4
5x/2 = 50
5x = 100
x = 20
so d?

Answer 3

That's the amount of water: 20
The amount of rubbing alcohol: (1/2)(20-8) = (1/2)(12) = 6
Difference: 20-6 = 14 not d but B

Answer 4

yes correct :)

Answer 5

:D ok ty for checkin

Answer 6

np (: