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STatiana [176]
3 years ago
8

A cylindrical oil drum has a diameter of 2 feet and a height of 3 feet what is the volume of the oil drum?

Mathematics
1 answer:
NikAS [45]3 years ago
4 0
We know, Volume of a Cylinder = πr²h

Here, r = 2/2 = 1 ft
h = 3 ft

Substitute their values, 
v = 3.14 * (1)² * 3
v = 9.42 ft³

In short, Your Answer would be: 9.42 Ft³

Hope this helps!
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First, you need to write to expressions to model each situation:

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Next, set the expressions equal to each other and solve for x:

10+0.15x=30+0.1x

<em>*Subtract 0.1x from both sides to isolate the variable*</em>

10+0.05x=30

<em>*Subtract 10 from both sides*</em>

0.05x=20

<em>*Divide both sides by 0.05*</em>

x=400


The plans would have the same cost after 400 minutes of calls.


To find how much money the plans cost at 400 minutes, plug 400 into either expression.  We'll use Plan A:

10+0.15(400)

10+60

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Hope this helps!

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Answer:

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Step-by-step explanation:

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