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dalvyx [7]
3 years ago
5

Help me please and I will mark you brainlieess

Mathematics
1 answer:
Fudgin [204]3 years ago
3 0

Answer:

10(3.14) = 31.4

20(3.14)=62.8

It will be twice the size

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You have an above ground pool that is 20 feet in diameter. One bag of sand does three square feet. How many bags of sand do you
r-ruslan [8.4K]

Answer:    Number of sand bags are 105

Step-by-step explanation:

Alright, lets get started.

The diameter of pool is given as : 20 \ \text{feet}

The radius of pool will be : r=\frac{20}{2}=10

So the area of the pool will be:

Area = \pi r^2

Area = \pi *10^2

Area = 100 \pi

Area = 314.16

3 square feet is covered by 1 sand bag, so

314.16 square feet will be covered by : \frac{314.16}{3}

So, no of sand bag = 104.7

Rounding off to nearest number

Number of sand bags are 105  :   Answer

Hope it will help :)

8 0
4 years ago
Juan is painting the floor of an outdoor racquetball court. He knows that 1 gallon of paint will cover the shaded area shown bel
iVinArrow [24]

Answer:

it would probably be 7 hours

3 0
3 years ago
He gets $200 for showing up and gets paid $15 an hour write a linear equation to represent his earnings
Dmitry [639]

Let H = number of hours worked.

He gets $15 for every hour worked, so you need to multiply 15 by h which is written as 15h

You then need to add that to the $200 he gets for showing up.

Total pay = 15h + 200

7 0
3 years ago
Read 2 more answers
(8x + 31) X<br> (16x - 9)
Marysya12 [62]

Answer:

<u>128x^2+424x-279 </u>

Step-by-step explanation:

Use the distributive property to get the answer

Use this for refrence https://www.khanacademy.org/math/pre-algebra/pre-algebra-arith-prop/pre-algebra-ditributive-property/a/distributive-property-explained

Hope this Helps!

7 0
4 years ago
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Macy measured the mass of a 69.3 g mouse at 70.0 g. Eli measured the mass of a 3867 kg elephant at 3900 kilograms. Macy's error
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To find the total weight of error subtract the measured weight from the actual weight

3900kg (actual weight) - 3867kg (measured weight) = 33 kg erorr
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4 years ago
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