The new perimeter will be 3 times the old perimeter.

Original perimeter:
2(8+7) = 2(15) = 30 yds

New perimeter once they are tripled:
3 x 8 = 24
3 x 7 = 21
2(24+21) = 2(45) = 90 yds

30 x 3 = 90

4 0

2 years ago

Read 2 more answers

Which of the following equations have two complex solutions? Select all that apply.

Tanzania [10]

Answer:

abe

Step-by-step explanation:

3 0

3 years ago

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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