To fill a cylindrical swimming pool with a diameter of 18 feet and a height of 4 feet 85% full, you'll need approximately 24462 liters of water.
To determine how many liters of water are needed to fill the swimming pool to 85% of its total volume, we first need to calculate the total volume of the cylindrical pool. The formula to calculate the volume of a cylinder is V=πr²h were r is the radius (half of the diameter) and h is the height. Therefore, the pool's total volume in cubic feet is V=π*9²*4 ≈ 1018 ft³. However, the student only wants to fill the swimming pool up to 85%, so we multiply this total volume by 0.85 to get approximately 865 ft³.
Since 1 ft³ ≈ 28.3 L, we can calculate the needed volume in liters by multiplying the 865 ft³ by 28.3 to obtain approximately 24462 liters of water. Round to the nearest whole number, so about 24462 liters of water are needed to fill the swimming pool es up to 85% of its volume.
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Answer:
125/12
Step-by-step explanation:
First, let's write 10 as a fraction with denominator 12, which is 10=120/12
then 10 5/12 actually means 10+5/12 and now:
120/12+5/12
=125/12
This is because we can add the numerators up if the denominators are the same.
So there you go! Hoped I helped!
Answer: 2000
Step-by-step explanation: there are 1000 mililiters in every liter
Answer:
1192 ft²
Step-by-step explanation:
Figure 3 is a trapezoidal prism.
The total surface area of a trapezoidal prism is made up of 2 congruent trapezoid bases and 4 rectangular faces connecting the bases.
The formula for the area of a trapezoid is:
where a and b are the bases, and h is the height.
From observation of the given diagram, the bases are 16 ft and 19 ft, and the height is 12 ft. Therefore, the area of each trapezoid base is:
To calculate the areas of all the rectangular faces, we first need to calculate the slant (s) of the trapezoid base by using the Pythagoras Theorem:
The area of a rectangle is the product of its width and length.
Therefore, the sum of the areas of the rectangular faces is:
To find the total surface area of the given trapezoidal prism, sum the area of the two trapezoid bases and the area of the rectangular faces:
Therefore, the total surface area of the given trapezoidal prism is 1192 ft², rounded to the nearest foot.
Answer:
sandy has 68 coins left
Step-by-step explanation:
do it step by step. add up all of the coins she got and then subtract the number she lost