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

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

mlparks13 · Answer

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