There are already 1,600 gallons of water in a swimming pool. If water is filling the pool at a rate of 40 gallons per minute, which expression indicates the amount of water, in gallons, in the swimming pool after m minutes

Question

lordhelix8th · Answer

1,600 + 40 × m
(1,600 + 40) ÷ m
1,600 - 40 × m
1,600 ÷ 40 × m

lordhelix8th · Answer

@TheEdwardsFamily @AlexandervonHumboldt2 @acxbox22

alexandervonhumboldt2 · Answer

40 is rate  40 will be with m

alexandervonhumboldt2 · Answer

as you have 1600 at the start you add it to 40m

lordhelix8th · Answer

@ybarrap @demonchild99 @rational @dan815

jtvatsim · Answer

One way to tackle these types of questions is to ask yourself an easier question. "m" minutes is sometimes too abstract. So think about how much water will there be after 10 minutes? Could you answer this easier question?

ybarrap · Answer

|dw:1426366116271:dw|
So given the above picture, there was 1600 gallons then add to this $40\times t$ more gallons. How much do we have now?

$$
1600+?
$$

(Note I used $t$ rather than $m$ for time)