Um... it'll take each pipe 80 mins, bcz if together they take that long, then to find the pipes time separately, you just multiply it by two to show it doing the work the other pipe did as well. Is that what you wanted??
Answer:
r= 10
Step-by-step explanation:
30 - 20 = 10
Answer: $9.23
because you multiply 3.59 by 3 to get $10.77 which was spent then you subtract $10.77 from $20.
Just set the equations equal to each other
(1,-4)
987.76 Hz please thank you
