Please, someone, help with this question.

1 answer:

4 0

Answer:

4.5 inches high

Step-by-step explanation:

First, find the height of the tub using the volume 350 and the length 76 and width 60 in the volume formula.

Convert 350 gallons to cubic inches by multiplying 350*231 (since 1 gallon has 231 cubic inches). 350*231 = 80,850.

The volume formula for a rectangular prism is $V = l*w*h$ .

Substitute l = 76, w = 60 and V= 80850.

80850 = 76*60*h

80850 = 4,560*h

17.7 = h

18 = h

The tub is about 18 inches high. If the water is 1/4 of the way full. it will be 1/4 of the height.

18* 1/4 = 4.5

The water is about 4.5 inches high.

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Answer:

He saved $25.

Step-by-step explanation:

If Rob saves $5 for every $16 he earns, he is saving the folowing franction of his income: $\frac{5}{16} =0,3125=31,25\%$ .
Then if his income equals $16, he will save $\$16\times{0,3125}=\$5$ .
If his income is $80, he will save $\$80\times{0,3125}=\$25$
Another way to understand this problem would be to think that $\$80=5\times{\$16}$ . Then, receiving $80 is the same as receiving 5 times $16. If he saves $5 for every $16 he receives, he would save 5 times $5 = $25.