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harina [27]
3 years ago
6

Your dad is putting a new circular swimming pool in the backyard that has the radius of 8 ft. If he wants to put bricks AROUND t

he outside edge of the pool, how many feet of bricks will he need? (use 3.14 for pi).
Mathematics
2 answers:
Lena [83]3 years ago
4 0

Answer: 200.96ft.

Step-by-step explanation:

A=πr2

A=3.14 x 8x8

A=3.14 x 64

A= 200.96ft.

Give BRAINLIEST PLEASE

stira [4]3 years ago
3 0

Answer:

2r*3.14= c

Step-by-step explanation:

2*8=16

16* 3.14=50.24

He will need 51 feet of brick

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Solve in simultaneou linear equation.
dangina [55]

Answer:

The bag costs 1500, while the umbrella cost 500

Step-by-step explanation:

Let the cost of the bag be b and the cost of the umbrella be u

Total cost is;

b + u = 2,000 •••••(i)

From the second part of the question;

b = 5u-1000 ••••••(ii)

Substitute ii into i

5u-1000 + u = 2000

6u = 2000 + 1000

6u = 3000

u = 3000/6

u = 500

To get b, substitute the value of u into equation ii

b = 5(500)-1000

b = 2500-1000

b = 1500

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3 years ago
Cameron bought an item and online website. The item sold for $324 and she was charged an $18 fee for shipping. What percent of t
Anettt [7]

Answer:

5.56 percent

7 0
4 years ago
. A car bought for $20,000. Its value depreciates by 10% each year for 3 years. What is the car's worth after3 years?
Mila [183]

Answer:

$14,580

Step-by-step explanation:

To start off, 10% of 20,000-one easy way to do this is to multiply 20,000 by 0.1, which is 10% in decimal form

-In doing that, you get 2,000

-Now the question says that the value is depreciated which means it goes down in value, so subtract 2,000 from 20,000 to 18,000

-the value of the car after one year is now $18,000

Now, let's move to the second year.  This time find 10% of 18,000

-multiply 18,000 by 0.1 to get 1,800

-since the value is depreciating, or becoming less, we will subtract 1,800 from 18,000 to get 16,200

-the value of the car after two years is now $16,200

Finally, let's look at the value of the car after three years.  Only this time, we will now find 10% of 16,200

-multiply 16,200 by 0.1 to get 1,620

-since value is being depreciated, or lessened, we will once again be subtracting.  Subtract 1,620 from 16,200 to get 14,580

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4 0
3 years ago
HURRY Given f(x) = - 3/4x + 2, find ƒ(16). The solution is
BaLLatris [955]

Answer:

\fbox {f(16) = -10}

Step-by-step explanation:

<u>Given</u> :

f(x) = -3/4x + 2

<u>Substitute x = 16</u> :

f(16) = -3/4(16) + 2

f(16) = -12 + 2

f(16) = -10

6 0
2 years ago
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Which of the following is equivalent<br> to the product of 4.3 million and<br> 2.1 million?
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What are the answer choices?
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