D is answer.
Perimeter is 2x +3x +2x + 3x = 10x where x is unknown factor of distance.
So P = 10x
Velocity is 12 km/hr = .2 km/min
P =1.6 Km = 10x
x= .16 Km 3x = .48 km, 2x=.32 km
Area = .48 X .32 Km^2
= 153600 m^2
The first thing any good mathematician does is convert the measurements to the same unit as what the question is asking. In this problem, it states that the pool fills at a rate of 20 cubic meters per hour. Just keep in mind that an hour is 60 minutes.
The next step is to see how many cubic meters will cost $300. This can be done by dividing 300 by 10. This gets you 30 cubic meters of water.
You already know that 60 minutes is 20 cubic meters of water. That leaves the remaining 10 cubic meters of water. By dividing the rate given, you get that 30 minutes is 10 cubic meters of water. Add the 60 and 30 together to get 90 minutes.
It will take 90 minutes for the pump to use $300.
Answer:
you too
Step-by-step explanation:
Based on the calculations, the unit rate in feet per minute for this walking pace is equal to 250 feet per minute.
<h3>How to calculate the unit rate?</h3>
A unit rate refers to a measurement of a quantity which is calculated as a ratio of one parameter to another.
This ultimately implies that, we would divide the distance covered in feet by the time taken to cover this distance as follows:
Unit rate = distance/time
Unit rate = 3750/15
Unit rate = 250 feet per minute.
Read more on time here: brainly.com/question/12199398
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