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3 years ago

A rectangle pool is 7 ft wide, it is 3 times as long as it is wide what’s the dimensions of the pool?

Mathematics

2 answers:

Readme [11.4K]3 years ago

7 0

The perimeter is 20 Hope it helps.

svetoff [14.1K]3 years ago

3 0

The length is 3 times longer than the width (7)

3 x 7 = 21

the length is 21.

To find perimeter, add all sides together:

21 + 21 + 7 + 7 = 42 + 14 = 56

56 ft is your answer

hope this helps

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In 2016, there were a total of 41 national battlefields and national memorials. The number of national memorials is three less t

goldfiish [28.3K]

Answer: 11, 30

Step-by-step explanation:

Given

There were a total of 41 national battlefields and national memorials

Suppose there are $x$ national battlefields

So, national memorials are $3x-3$

The sum of the two must be 41

$\Rightarrow x+3x-3=41\\\Rightarrow 4x=44\\\Rightarrow x=11$

So, there are 11 national battlefields and $3\times 11-3=30$ national memorials.

3 0

3 years ago

James is 60 years old. His age is 8 years more than twice Maggie's age. How old is Maggie?

kow [346]

Answer:26

Step-by-step explanation:

60-8=52

52•2=26

4 0

3 years ago

Read 2 more answers

855000000000 in scientific notation pls help ASAP!!!

igor_vitrenko [27]

Answer:

8.55 × $10^{11}$

Step-by-step explanation:

3 0

3 years ago

Henry's baseball practice starts at 2:00 pm. It lasts 1 hour and 45 minutes. What time does he get out of baseball practice? Wri

Andrew [12]

Answer:

3:45

Step-by-step explanation:

because if you add 2 to 1 it is 3 and that is 3pm and it says 2:00 and the 00 are the minutes minutes so you can add those in and it will be 45 so 3:45

5 0

2 years ago

Help I will be marking brainliest!!

lora16 [44]

Answer:

<u>Given</u>: base = 10.4ft, height = 12.5

Area of octagon = 8(1/2 × b × h)

8(1/2 × 10.4 × 12.5)
520ft²

Volume of pool = 520ft² × 3ft

1560ft³

Now, 1 cubic ft takes 7.5 gallons to fill.

Therefore, 1560 cubic ft takes,

1560 × 7.5
11700

So, <u>Correct choice</u> - [D] 11,700.

5 0

3 years ago