Question

during the last half hour of a baseball game hot dog sales decreased by about 80% from the previous half hour sales of 50 hot dogs how many hot dogs were sold in the last half hour

Answer 1

10 hot dogs were sold in the last half hour.

The reason why this is the answer is because 50 x .80 = 40
40 represents the number of hot dogs they didn't sell in comparison to the previous hour.