NEED HELP ASAP Sally can paint a room in 7 hours while it takes Steve 5 hours to paint the same room. How long would it take them to paint the room if they worked together?

I'm pretty sure its 2.9 hours

Step-by-step explanation:

hope this helps

answer:

a=9

step-by-step explanation: lmk if you need a explanation

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %