Amotorboat travels 9 miles downstream (with the current) in 30 minutes. the return trip upstream (against the current) takes 90 minutes.

which system of equations can be used to find x, the speed of the boat in miles per hour, and y, the speed of the current in miles per hour? recall the formula d = rt.

Step-by-step explanation:

I don't know what systems you have to choose , but a system is:

18 = x+y

6 = x-y

x=12

y=6

so the boat moves at 12 miles per hour and the stream moves at 6 miles per hour

a framing bias

step-by-step explanation:

rodrigo is subject to a framing bias i believe.

in if you ask questions, the points are taken from your total and given to the one who answered it..

so if i have 30 points and i ask a question for 5 points, then when someone asks a question i will lose 5 points and the answerer earns 5

happy to