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Vitek1552 [10]
3 years ago
14

Between 11 P.M. and 8:36 A.M.​, the water level in a swimming pool decreased by 8 25 in. Assuming that the water level decreased

at a constant​ rate, how much did the water level drop each​ hour?
Mathematics
1 answer:
Eva8 [605]3 years ago
6 0

Answer:

0.8594 in/hr

Step-by-step explanation:

Decreased in the water level is 8.25 in.

Time 11 P.M. and 8:36 A.M.  is 9 hr 36 min = 9.6 hr.

The rate of decreasing water level is constant.

So, \text{Rate}=\frac{\text{Level decreased}}{\text{Time taken}}

\Rightarrow \text{Rate}=\frac{8.25}{9.6}=0.8594 in/hr.

Hence, the water level drop at the rate of 0.8594 in/hr.

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3 years ago
I need help with this math question
ICE Princess25 [194]

Answer:

B. 5

Step-by-step explanation:

Step 1: Rewrite the equation a bit

\frac{7^\frac{3}{4}}{7^\frac{x}{8}}=\sqrt[8]{7}\\7^\frac{3}{4}^-^\frac{x}{8}=7^\frac{1}{8}

Step 2: Place a logarithm base 7 on both sides

7^\frac{3}{4}^-^\frac{x}{8}=7^\frac{1}{8}\\log_77^\frac{3}{4}^-^\frac{x}{8}=log_77^\frac{1}{8}\\(\frac{3}{4}-\frac{x}{8})log_77=\frac{1}{8}log_77\\(\frac{3}{4}-\frac{x}{8})1=\frac{1}{8}1\\\frac{3}{4}-\frac{x}{8}=\frac{1}{8}

Step 3: Solve for x

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2 years ago
1 question. A big square is made up of 4 identical small squares the area of each small square is 25 cm A. Find the length of ea
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Answer:

50cm

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Step-by-step explanation:

The big square is divided into 4 with a side length of 25cm. 2 small square side lengths make up the big squares.

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17 * 10 = 170

15 * 8 = 120

170-120 = 50

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3 years ago
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