Question

Working alone, Carlos can oil the lanes in a bowling alley in five hours. Jenny can oil lanes in nine hours. If they worked together, how long would it take them? @misty1212

Answer 1

HI!!

Answer 2

hellooo :)

Answer 3

lets see if it works now

Answer 4

there is a real real easy way to set up this question to get the answer quickly
i can explain why it works second

Answer 5

using only the two numbers given 5 and 9 compute \[\frac{5\times 9}{5+9}\]

Answer 6

is this working now?