A new type of pump can drain a certain pool in 5 hours. An older pump can drain the pool in 15 hours. How long will it take both pumps working together to drain the pool? Do not do any rounding. hours X

Q: 1/3y-9=1/10y

A: Here given as 13y-9=110y Here y is not equal to 0 and 3.

Q: S is 4 years older than J. 8 years ago, s was twice as old than J. What are the ages of S & J?

A: Let the age of S be x years, then the age of J is (x - 4) years, because S is 4 years older than J.

Q: Solve for x. 5. 7.

A:

Q: 10x+2/5x+4=1/2

A: Given function is

Q: -4.5 x -2.5

A:

Q: 33x33%3D35× 3X

A: 33 x 33 =35 x 3x

Q: A culture of bacteria increases by 100% every 24 hours. If the original culture contains 1 million…

A: Given, that the original culture contains  million bacteria .The bacteria population increases by…

Q: 1/3p + 7 = 25

A:

Q: Simplify. (x+ 9)^2

A: (x+9)^2 means two (x+9) multiplies together.

Q: Calculate the area of a triangle, whose vertices are A (2, -1, 4), B (3, 5,-2) and C (-11, -6, 8).

A: