Answer this question:A rectangular plot of private property is fenced in by a chain-link fence. The long sides of the plot are three times the length of the short sides. One short side of the fence is rusted from being hit by a sprinkler and needs to be replaced. If all the sides of the fence together are 640 feet long, how many feet of fence need to be replaced?
Let S be the length of the short side of the fence. Thus, the length of a long side of the fence is 3S. There are 2 of each side, so the whole fence is 2S + 2 * 3S = 2S + 6S = 8S long. The whole fence is 8S = 640 feet long. Thus, the short side of the fence that needs to be replaced is S = 640 / 8 = 80 feet long.
The answer is 80.

Answer this question:Frank is walking through a corn maze. He has already spent 45 minutes inside. He has done 4 other corn mazes and finished those in 50 minutes on average. How much longer can he spend inside if he wants to ensure that his average doesn't go above 60 minutes per maze?
He needs to keep his total time at 300 or below because 5 x 60 = 300. His total time spent in the other mazes is 200 because 4 x 50 = 200. His total time spent in the five mazes thus far is 245 because 200 + 45 = 245. He can spend 55 more minutes on this maze before his average go above 60 because 300 - 245 = 55.
The answer is 55.

Answer this question:Aleesia lost 1.5 pounds each week for 10 weeks. Alexei lost 2.5 pounds each week for 8 weeks. How many pounds did the two friends combine to lose?
Alessia = 1.5 * 10 = 15 pounds. Alexei = 2.5 * 8 = 20 pounds. 15 + 20 = 35 pounds. Together they lost 35 pounds.
The answer is 35.

Answer this question:Lauryn owns a computer company that employs men and women in different positions in the company. How many men does he employ if there are 20 fewer men than women and 180 people working for Lauryn?
Let's say the number of men working at the company is x. Since there are 180 people, and the number of men is 20 fewer than the number of women, then x + x + 20 = 180. The total number of employees in the company is 2x + 20 = 180. 2x = 180 - 20. 2x = 160. The number of men is x = 160 / 2. There are x = 80 men in the company.
The answer is 80.