I have no idea how to do this problem i dont know what a is
Answer: the leg x would equal 76.8, or 77 rounded. The actual number would be 76.8374908492.
Answer:
2
Step-by-step explanation:
Use Photomath it’s so much faster!<3
Let
be the time it takes for pumps A, B, and C (respectively) to fill 1 tank. Then

Now,

Then

This means

and

Working together, all 3 pumps would operate at a rate of

or 1 tank in 1 hour, so the answer is D.