A new type of pump can drain a certain pool in 8 hours. An older pump can drain the pool in 12 hours. How long will it take both
pumps working together to drain the pool.
1 answer:
Answer:
4
Step-by-step explanation:
You might be interested in
To find the median of 20 values, list the values from smallest to largest then add the 10th and 11th number then divide by 2 and you get your median.
x * 2x = 3x X*-8= -8x
minus 3x on both side
= -11x
-11x = 0
divide -11 on both side
= 0
Answer:
28
Step-by-step explanation:
28 = 7 x 4
So,
7 is a factor of 28.
Answer: i need more information in order to help
Answer:
d on edge
Step-by-step explanation:
-3(x+4)(x-2)/x^2-1`
