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statuscvo [17]
3 years ago
10

A Storage shed has the shape of an upside down cone. The shed has a volume of 209 cubic meters and is 10 meters wide. To the nea

rest meter,how tall is the she? Use 3.14 for Pi
Mathematics
1 answer:
morpeh [17]3 years ago
3 0

Answer:

Height = 8 meters

Step-by-step explanation:

Given that

The volume V = 209 cubic meters Diameter = 10 meters

Radius r = 5 metres

How tall is the shed? The question is looking for the height of the cone

Using the formula for volume of a cone.

V = 1/3πr^2h

Where π = 3.14

209 = 1/3 × 3.14 × 5^2 ×h

209 = 3.14/3 × 25h

209 = 78.5h/3

h = 7.99 meters

h = 8 meters

Therefore, the shed is 8 meters tall.

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a pool in the shape of rectangle has a perimeter of 80 feet. The pool is 8 Feet less wide than its long. Find the length and wid
Aneli [31]
Hello!

To solve this, lets put it into a system of equations where w=width and L=length.
2w+2L=80
L-8=w

To solve, we see that w=L-8. We can substitute this in the first equation to find L and then w.

2(L-8)+2L=80
2L-16+2L=80
4L-16+80
4L-16=80
4L=96
L=24

Now that we know L=24, we can find w. 24-8=16. Now we know that L=24 and w=16.

Lets check our answer. In our original system of equations, we have 48+32=80, which is true, and 24-8=16. Also, the perimeter must equal 80. 16+16+24+24=80.

As our final answer, the width of the pool is 16 feet, and the length is 24 feet.

Hope this helps!

5 0
3 years ago
Of the eggs produced by salmon,80% hatch, and of those, 25% survive to migrate to the ocean. How many eggs are needed to produce
Marina CMI [18]

Answer:

500 eggs are needed

Step-by-step explanation:

so 1/4 or the 80 percent make it to the ocean so 20 percent of total salmon make it to the ocean.

so total number of eggs x

1/5x=100

x=500

if my answer helps please mark as brainliest.

8 0
3 years ago
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What is the greatest common factor of 49 and 84? 3 4 7 9
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49: 1 7, 49
84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84

The GCF is 7
6 0
3 years ago
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Solve the equation<br> 5х + 8 – 3x = -10<br><br> x=-9<br> x=-1<br> x=1<br> x= 9
enyata [817]
The answer is -9. Have a great day
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3 years ago
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5 0
3 years ago
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