A winery has a vat with two pipes leading to it. The inlet pipe can fill the vat in 7 hours, while the outlet pipe can empty it in 10 hours. How long will it take to fill the
vat if both pipes are left open?

25/14 or 1.

step-by-step explanation:

the dots mean that it has infinitely more numbers behind it

c. 1,233 miles

the correct answer is b.

this is because an open circle means < or > & since the line goes left it is < -3.

the next one has a filled circle so it can only be ≥ or ≤ and since the line goes right from 1 it is ≥ 1

hope that