Why is 3/8 of 40=15 a logical answer ... not how to get the answer, but why my answer makes sense?

At a soccer game, 70% of the fans were rooting for the Tornadoes. If 40% of the Tornadoes fans were girls, what percent of the fans at the game rooting for the Tornadoes were boys?

Juana and diego, ages six and four respectively own a strong and stubborn puppy

Team Yards gained Bears -1 Lions -7 Tigers -15 Wolves -9 The table shows the yardage for each team in their last football game. Who had the worst performance? A) Bears B) Lions C) Tigers D) Wolves

8x + 5y = 22 -8x + y = 14

The profit in one share is rs 25. find profit on 2000 shares

Bob won big at bingo last night, he walked away with $800. The first thing Bob does is to take a cab to his mother's house. He gives the cab driver $20 and tells him to keep the change.

A local company wants to evaluate their quality of service by surveying their customers. Their budget limits the number of surveys to 100.

Select the correct numeral form of this number written in scientific notation. 5.0 * 10^10 0.000 000 000 5 5,000,000,000 50,000,000,000 500,000,000,000

John has a bag of marbles that contains 12 red marbles 20 green and 17 blue. if john pulls one marble what is the probability that it will be a purple marble

Solve for x: 2 over 3 (x - 4) = 2x. 2 - 2 - 8 - 4