A pool can be filled by one pipe in 9 hours and by a second pipe in 18 hours. How long will it take to fill the pool using both pipes

54

Step-by-step explanation:

9+9=18

18+18=36

36+18=54

Hope this helps:)

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer

answer: 30

step-by-step explanation: its 30 because im a basketball player and stephen curry hits most of his shots so if you put 30 you might make the shot goodluck