It takes 3 identical water pumps 8 hours to fill a pool. How long would it take 4 of
1 answer:
Answer:
Step-by-step explanation:
We have 3 identical pumps working to fill a pool. If it takes them working together 8 hours to fill the pool, the equation is:
and
. Cross multiply to get
x = 24, which is the number of hours it will take one pump to do the job all alone. If this be the case, and we have 4 pumps WORKING AT THE SAME TIME, filling the pool will be <u>the number of hours it takes one pump</u> divided by <u>4</u>.
4 pumps can do the job in 6 hours.
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Answer:
D2=21/24 mile
Step-by-step explanation:
Her it is not specified if it is base or height, it only talks about dimensions, so let's work with dimensions
A=1/12
D1=4/21mile, D2=?
Area of a triangle
A=((D1*D2)/2) → 2A=D1*D2 → D2=2A/D1 so D2=(2*1/12)/(4/21) =(1/6)/(4/21) = (1*21)/(6*4)=21/24 mile