Zack and tia played chess for fifteen min. they put the chessboard away 11.20.which clock shows the time they started there chess game?

1

step-by-step explanation:

it's the only multiple of both and the least

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it