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Dahasolnce [82]
3 years ago
15

the hight of the water in an above ground is 3 feet. The pool needs to be drained. As the water changes at a rate of -1/2 inch p

er mintues it will take to drain the pool
Mathematics
1 answer:
Nutka1998 [239]3 years ago
5 0
72 minutes.  First convert the height of the pool to inches by multiplying the height in feet by 12 which equals 36.  Next multiply that by 2 because the pool is draining at -1/2 inches per minute, not -1 inch per minute.
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Three numbers are in the ratio 1:3:5 and their sum is 270. find the largest number.
Sphinxa [80]

Answer:

<u>150</u>

Step-by-step explanation:

Let :

⇒ The numbers can be denoted as <u>x</u>, <u>3x</u>, and <u>5x</u>

<u />

=============================================================

Solving :

⇒ It mentions their sum is 270

⇒ x + 3x + 5x = 270

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Largest number :

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Divide 32 in the ratio 3:1
Igoryamba
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Ratio
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3 : 1

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Find total parts
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3 + 1 = 4

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Split the 32 according to the parts
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4  parts = 32
1 part = 32 ÷ 4
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Split the 32 into the ratio
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24 : 8

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Answer: 24 : 8 
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Answer:

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Step-by-step explanation:

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Answer: b = 1850 - 120w

Step-by-step explanation:

Let w represent the number of weeks for which the books are purchased.

They are being purchased at a steady rate of 120 books per week. This means that the number of books purchased after w weeks would be 120w.

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