Question

1. a mechanic pours 1/4 quart of oil in the morning and 1/2 quart in the afternoon. how much oil was added in total? (2 points) *

1/2 quart
3/4 quart
1 quart
1 1/4 quarts

1. each repair requires 4/5 foot of gasket material. how much is needed for 15 repairs? (2 points) *

10 feet

Explanation:

Step1: Find total oil added

We need to add $\frac{1}{4}$ and $\frac{1}{2}$. First, make a common - denominator. Since $\frac{1}{2}=\frac{2}{4}$, then $\frac{1}{4}+\frac{2}{4}=\frac{1 + 2}{4}=\frac{3}{4}$.

Step2: Find gasket material needed

If each repair requires $\frac{4}{5}$ foot of gasket material and there are 15 repairs, we multiply $\frac{4}{5}\times15$. We can write $15$ as $\frac{15}{1}$, so $\frac{4}{5}\times\frac{15}{1}=\frac{4\times15}{5\times1}=\frac{60}{5}=12$ (but this is not in the options for the second part of the question).

Answer:

1. B. 3/4 quart
2. (No correct option given as the correct answer is 12 feet)