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LiRa [457]
3 years ago
6

Can anyone explain these?

Mathematics
1 answer:
Paul [167]3 years ago
5 0
The perimeter , width and length are all one dimensional so the preimeter of the resulting rectangle  will be 2.5 * 36 = 90.

The area  is 2 dimensional  whereas the vase and height are one dimensional so the area will be increased by a factor of 5^2  ( or 25)
New  rea =  36*25 =  900

solids are 3 dimensional  so the ratio of thereir volumes is  5^3 : 3^3
= 125:27

to answer the last 2 use the formula Volume = pi r^2 h  where r = radius and h = height of a cylinder
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A tank sprung a leak in the water level started drop from 24.8 m at a rate of 2 m/h. Right and solve an equation to determine ho
malfutka [58]

Answer:

8 hours.

Step-by-step explanation:

The initial water level is 24.8 meters, and the rate of water level drop is 2 meters/ hour, that means after t hours the water level L will be

L =24.8-2t

Now we want water level to be 8.8 meters, I.e L=8.8m, therefore, we have:

L=8.8=24.8-2t

we solve the equation for t:

8.8=24.8-2t\\8.8+2t=24.8\\2t=24.8-8.8\\2t=16\\\\\boxed{t=8}

it will take 8 hours for the water level to drop to 8.8 meters.

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3 years ago
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3x-12-2x-24
Simplify and you get x-36
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HELPPP i need some help solving this out please explain
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