Jim can paint a house in 6 hours. Alex can paint the same house in 4 hours. Solve for the time that can be used to find the time in hours, t, it would take Jim and Alex to paint the house together.

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f