f one pump can inflate an air mattress in 21 minutes and a second pump can inflate the same mattress in 42 minutes, find the am
ount of time that would be needed for the two pumps working together to inflate the mattress.
1 answer:
Answer:
14 minutes
Step-by-step explanation:
Ⓗⓘ ⓣⓗⓔⓡⓔ
Well, what I do for these problems is do 1/x with x being the amount of time given.
1/21+1/42=3/42
3/42=1/14
Together, they would take 14 minutes!
(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥
You might be interested in
17 bc I did it trust me pls
Answer:
I hope I helped you^_^
Step-by-step explanation:
ED = EB
2x +3 = 5x -15
3+15=5x -2x
18 = 3x
18 ÷ 3 = x
x = 6
log 9 X= 3/2
x= 3.5
or x= 7/2
