What is the approximate are of the the pool

Answers

Answer 1

Answer: area (pool)=area (rectangle) - area (triangle)

1) we calculate the area of the rectangle:
area (rectangle)=lenght x width
area (rectangle)=36 ft x 20 ft=720 ft².

2) we calculate the area of the triangle:
area (triangle)=(base x height) / 2
area (triangle)=(6 ft x 5 ft) / 2=15 ft².

3) we calculate the area of this pool:
area (pool)=720 ft²-15 ft²=705 ft²

Answer: the area of the pool is 705 ft².

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PLEASE HELP I GIVE THANKS

The ratio of boys to girls of a class is 3 to 4. If there are 42 students, how many of them are boys? Show your work.

Answers

Answer:

There would be 18 boys.

Step-by-step explanation:

If the ratio of boys to girls is 3:4 that means in a classroom of 7 people there would be 3 boys and 4 girls. So all you do is multiply 3 boys by 6 (18) and 4 girls by 6 (24) cuz 7*6=42 which means that there would be a total of 42 students with 18 boys and 24 girls.

Which expression can be used to change 75 kilometers per hour to meters per minute?

Answers

$1h=60min\n1km=1000m\n\n\n75\ km/h=75\cdot(1000)/(60)\ m/min=1250\ m/min$

Lena can run 4 miles in 30 minutes. Rachel can run 7 milesin 56 minutes. What proportion could you write to see if they are
running at the same rate?

Answers

We want to create a proportion with minutes over miles for each person. The proportion for this problem is shown below.

30 minutes / 4 miles = 56 minutes / 7 miles

To find out if these people are running at the same rate, we can cross-multiply.

224 = 210

Because 224 and 210 are not equivalent, the people are not running at the same rate.

Hope this helps!! :)

A lawn sprinkler spins in a circle. The sprinkler covers a radius of 4 feet. Which choice is the closest to the area of lawn that the sprinkler can cover?

Answers

Answer:

The correct answer is 50 feet

Step-by-step explanation:

Area= r^2*π = 4^2*π= 16π.

The final answer is 16π ft^2~

Please help 4th grade 3 questions

Answers

b for number 1 do u need all of them

Answer:

good luck

Step-by-step explanation:

1- a

2- c

3- b

Joseph had a quarter of a cookie Ellen had half of a different cookie the piece Joseph had was larger how would Ellen's peace be smaller

Answers

Joseph's cookie must have had a larger diameter. Diameter is the line all the way across the circle. The diameter must have been at least 2 times larger that Ellen's.

Because a quarter is larger then a half

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