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Papessa [141]
3 years ago
7

I need the answer to this question please help me

Mathematics
1 answer:
pogonyaev3 years ago
4 0

Answer:

38

Step-by-step explanation:

<u>Step 1:  Since RYH and BYH are complimentary, they add up to 90</u>

<em>2f + 58 + 8f + 62 = 90</em>

<em />

<u>Step 2:  Combine like terms</u>

2f + 58 + 8f + 62 = 90

<em>10f + 120 = 90</em>

<em />

<u>Step 3:  Subtract 120 from both sides</u>

10f + 120 - 120 = 90 - 120

10f / 10 = -30 / 10

<em>f = -3</em>

<em />

<u>Step 4:  Find RYH</u>

RYH = 8f + 62

8(-3) + 62

-24 + 62

<em>38</em>

<em />

Answer:  38

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A swimming pool is to be drained. The pool is shaped like a rectangular prism with length 30 feet, wide 18 ft, and depth 4ft. Su
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Answer: it will take 9 hours to empty the pool.

Step-by-step explanation:

The pool is shaped like a rectangular prism with length 30 feet, wide 18 ft, and depth 4ft. It means that when the pool is full, its volume is

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Where

a represents the first term of the sequence(initial amount of water in the pool when completely full).

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From the information given,

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Tn = 0(the final volume would be zero)

We want to determine the number of terms(hours) for which Tn would be zero. Therefore,

0 = 2160 - 216 (n - 1)

2160 = 216(n - 1) = 216n + 216

216n = 2160 - 216

216n = 1944

n = 1944/216

n = 9

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3 years ago
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3 years ago
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