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natita [175]
3 years ago
12

A well of diameter 4m is dug 14m deep. The earth taken out is spread evenly all around the well to form a 40cm high embankment.

Find the width of the embankment
Mathematics
1 answer:
dimulka [17.4K]3 years ago
8 0

Answer:

82.72m

Step-by-step explanation:

Volume = πr2h

= 3.142*7*7*14

= 2,155.41m³

Now that we hav the volume of earth, we go on to find the raduis of the spread

2155.41m³ = 3.142*r²*0.4

2155.41m³ = 1.26r²

r² = 1,710.64

r = 41.36m

Width = diameter = 2r = 82.72m

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Answer:

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Step-by-step explanation:

Let the amount of money they had be x

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So, what Mila had left is half of what Samuel has; that would be;

x-42 = 1/2(x-36)

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6 0
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3 years ago
Area of rectangular figures​
iren2701 [21]

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3 0
3 years ago
Rewrite this formula to convert Fahrenheit to Celsius (linear equations and inequalities)
Luba_88 [7]

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Step-by-step explanation:

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Now we need an expression to convert   Fahrenheit in to Celsius.

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C = ( F - 32) \times (\frac{5}{9})

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I think the answer to your problem is 69

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