Answer:
67.2 quarts after 0.14 hours
Step-by-step explanation:
For this problem, we simply need to know that 1 gallon contains 4 quarts, and that there are 60 minutes in 1 hour. Given that our hose is releasing water at a rate of 2 gallons per minute, we can say the following:
2 gallons / minute = 2 gallons / minute * 4 quarts / gallon = 8 quarts / minute
So now we know our hose is releasing water at a rate of 8 quarts per minute. Furthermore, we need to find out how many minutes 0.14 hours is. We can do this simply by the following:
14 / 100 == x / 60
x = 60 (14/100)
x = 8.4 minutes
So to calculate the amount of quarts released after 8.4 minutes we simply perform the multiplication:
8.4 minutes * 8 quarts / minute == 67.2 quarts
Hence, our solution is 67.2 quarts are released after 0.14 hours.
Cheers.
Answer:
- equation: w +(2w -3) = 18/2
- length = 5 cm
- width = 4 cm
Step-by-step explanation:
Let w represent the width in cm. Then the length is 2w-3, 3 cm less than twice the width. The perimeter is twice the sum of these, so the sum of length and width is half the perimeter:
w + (2w -3) = 18/2
3w -3 = 9 . . . . collect terms
3w = 12 . . . . add 3
w = 4 . . . . divide by 3
2w-3 = 2·4 -3 = 5 . . . . length
The equation is w + (2w -3) = 18/2; the length is 5; the width is 4.