A shoe repairman is working with his assistant, who takes 1.5 times as long to repair a pair of shoes. Together they can fix 20 pairs of shoes in an eight-hour day. How long does it take the repairman to fix one pair of shoes by himself?

Type of percentage that compares the final and original amounts

Five athlete are entered into a competition. Four of the athlete have had their turns. Their scores are 9.8 seconds, 9.75 seconds and 9.81 seconds to run 200 m distance. What score must the last athlete get in order to win the competition?

What is bigger 4.17 or 4.085

A truck is 75% longer than the car. A bus is 30% longer than the truck. How long is the car is the bus is 40 feet long?

Solve using the quadratic formula: 2x^2+10x+15=0

Each time Nicholas mows a lawn he uses 1/6 of a gallon of gasoline. If he has 2/3 of a gallon of gasoline, how many lawns can he mow before he needs to buy more gasoline

Which compound inequality can be used to solve the inequality. |3*+2| >7

How can 2x^2=x^2+4x+8 be set up as a systems of equations

Which statement best describes the excluded values of a rational expression? A - The number of excluded values of a rational expression cannot exceed the degree of the numerator.

Evaluate 12C4 and 11P4