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andreev551 [17]
2 years ago
10

Find the sum. (5p+11) + (8p- 4) A. 5p+7 B. 13p-7 C. 13p+7 D. 13p+15 AP3X

Mathematics
1 answer:
USPshnik [31]2 years ago
6 0

Answer:

(5p + 11) + (8p - 4) \\ = ( 13p + 7)

<h2>C. (13p+7) is the right answer.</h2>
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Answer:

Total 25.45 hours will be taken to empty the pool.

Step-by-step explanation:

Time taken by large pumpkin to empty the pool=40 hours

Time taken by the smaller pumpkins to empty the pool=70 hours

Amount of pool emptied by large pumpkin in one hour=\frac{1}{40}

Amount of pool emptied by small pumpkin in one hour=\frac{1}{70}

Amount of pool emptied in one hour if both pumpkins work together=

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=\frac{11}{280}

Therefore, the no. of days will be the reciprocal of the amount of work done in one hour ie . \frac{280}{11}

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Step-by-step explanation:

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[0.16316 , 0.27684]

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