Apool has 130,000 gallons of water in it. it is being drained. water is being removed from the pool at a rate of 500 gallons per hour. write an equation for this scenario. after 125 hours how much is left? how many hours does it take until the pool is completely drained?

130,000/500=216.

1 hour per 500 gallons.

500 times x =130,000.

500 gallons in 216 hours will complete the drainage.

216-125=135.

It will take 135 more hours to drain the pool.

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180 square centimeters

step-by-step explanation:

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.