72 minutes. First convert the height of the pool to inches by multiplying the height in feet by 12 which equals 36. Next multiply that by 2 because the pool is draining at -1/2 inches per minute, not -1 inch per minute.
Answer:
10.336.
Step-by-step explanation:
There are 12 inches in 1 foot so 51.68 ft/hr
= 51.68 * 12 in/hr.
Now there are 60 minutes in an hour so the speed in inches/minute
= 51.68 * 12 / 60
= 10.336.
The answer is 6 schools.
In a box and whisker plot, every piece of whisker or box represents 25% of the whole number of schools.
The schools participated 1 year or less are represented by the left part of the whisker. Which stands for 25%.
To make an equation we need to set 100% = 24 and solve for 25% :

Set the denominators equal:

Remove the denominators and solve:
7 halve equal ho many wholes?
1 whole = 2 haves
7 ÷ 2 = 3.5
3 wholes are in 7 with 1 half left.