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Bad White [126]
3 years ago
11

If a hose is filling a swimming pool at a rate of 20 liters per minute, how long will it take to fill the 3,600-gallon pool?

Mathematics
1 answer:
Cloud [144]3 years ago
7 0

Answer: the correct answer is 11 hours, 21 seconds and 3738 fractions of a second.

Step-by-step explanation:

An American gallon has 3.78541 liters.

3,600 gallons are 13,627.46 liters since 3,600 gallons * 3.78541 liters per gallon= 13,627.46 liters

We will need 681.3738 minutes to fill the pool since 13,627.46 liters divided by 20 liters per minute = 681.3738 minutes

681.3738 minutes is 11 hours and 21.3738 seconds since 11*60 minutes + 21.3738 minutes = 660 minutes + 21.3738 seconds = 681.3738 or 681.3738 divided by 60 minutes ( 1 hour ) is 11 hours and 21.3738 seconds.

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An air balloon begins it's decent to the ground at 1000 ft above the ground and falls at a rate of 50 ft per minute. Select all
Radda [10]

Answer:

The correct options are 3, 4 and 5.

Step-by-step explanation:

It is given that an air balloon begins it's decent to the ground at 1000 ft above the ground and falls at a rate of 50 ft per minute.

It means the initial height of air balloon is 1000. So, the y-intercept is (0,1000).

The ball falls at a rate of 50 ft per minute. So, the rate of change is

m=-50

The height of balloon is defined as

h(x)=-50x+1000                      [\because y=mx+b]

Where, x is time in minutes.

The balloon will reach the ground when h(x)=0

0=-50x+1000

50x=1000

x=20

Therefore the options 3, 4 and 5 are correct.

4 0
3 years ago
Which statement is true? Question 2 options: All parallelograms are rectangles. All rectangles are squares. All quadrilaterals a
alekssr [168]

For this case, we have that:

  • By definition, a rectangle is a parallelogram. So, we discard the first option.
  • On the other hand, we have that all rectangles can not be squares, since a square has all its sides equal, while the rectangle, poir definition, no.So, we discard the second option.
  • All quadrilaterals are not rectangles because there are other figures with four sides that are not necessarily rectangular. We discard the third option.
  • Finally, we have that all squares are rectangles. This statement is true since squares can be rectangles with pairs of equal sides.

Answer:

Option D

5 0
3 years ago
What is pi^pi^pi^pi^pi^pi^pi^pi = many pi's = 10^(10^(10^(10^(10^(10^17.82364533941695)))))
yuradex [85]

Answer:

Pi is 3.14 for short but, its 3.14159265359

Step-by-step explanation:

The number π is a mathematical constant. It is defined as the ratio of a circle's circumference to its diameter, and it also has various equivalent definitions. It appears in many formulas in all areas of mathematics and physics. It is approximately equal to 3.14159.

4 0
3 years ago
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stiks02 [169]

Answer:

x-1/2x-3

Step-by-step explanation:

be happy bro this is your perfect answer

6 0
3 years ago
Based on the box-and-whisker plot shown below, match each term with the correct value.
umka2103 [35]

Answer:

Medain is the middle number on a number line so it's... 15

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25th Percentile = 12

75th percentile = 18

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4 0
3 years ago
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