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Oksana_A [137]
3 years ago
5

Heating oil is to be poured at the constant rate of 4.5 gallons per minute into a 400-gallon tank that already contains 115 gall

ons of heating oil. What fraction of the tank's total capacity will be full in 30 minutes?
Mathematics
1 answer:
kirill [66]3 years ago
3 0

Answer:

5/8

Step-by-step explanation:

The volume after 30 minutes is:

(4.5 gal/min) (30 min) + 115 gal = 250 gal

The fraction of total capacity is:

250 gal / 400 gal = 5/8

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10.)A child-sized swimming pool can be modeled by a cylinder. The pool has a diameter of 6 1/2 feet and a height of 12 inches. T
Luba_88 [7]

Answer:

165.47≈165 Gallons of Water

Step-by-step explanation:

According To the Question,

  • Given, A child-sized swimming pool can be modeled by a cylinder. The pool has a diameter of 6 1/2 feet (or) 6.5 feet (radius is 3.25 feet) and a height of 12 inches(1 feet).

The pool is filled with water to 2/3 of its height (H= 2/3 feet) .

Volume of Cylinder = π×R²×H , now put values, we get

Volume = 3.14×3.25²×2/3

Volume = 22.122 foot³ .

And, One cubic foot equals 7.48 gallons of water

Thus, 22.122 cubic foot equals to 165.47≈165 gallons of water .

8 0
3 years ago
Write an expression that says "Nine plus a number times 14"
mr_godi [17]

That could be expressed in two different ways ... because
there are no parentheses in your question.

One way:
Call the number ' N ' .
Nine plus the number is     (9 + N)
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The other way:
Call the number ' N '.
The number times 14 is         14N
Nine plus that is               9 + 14N .
 
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Divide the number of miles by the number of hours to get the miles per hour.
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Which of the following is the correct SI unit to use in measuring amount of material contained in a solid sphere?
Lera25 [3.4K]
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Answer:

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Step-by-step explanation:

7 0
3 years ago
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