Suppose Jamal swam the 100-meter butterfly race in 57.79 seconds. The next time he swam the same race, he swam it in 54.83 seconds. What percent decrease was there in his time? Round your answer to the nearest tenth of a percent.

Hint

5.1

P (x) = 2x^2 - 4x - 6

Mark wants to improve his free throw percentage in basketball He has shot 1,250 free throws over the last 20 days. He shot either 50 or 100 free throws a day. During the 20 day period, how many times did Mark shoot 100 free throws for the day?

How do you show your work for four girls and two boys are working on a project. They have four square pieces of felt. If each person getsan equal share of the felt how muchof a piece of felt will each person get

A pair of dice is rolled, and the number that appears uppermost on each die is observed. Refer to this experiment and find the probability of the given event. (Enter your answer as a fraction.)

Examine the two-step equation. - 7 4 + x 4 = 2 Which property of operations allows you to add the same constant term to both sides?

Is this question true or false 11=√101

Is the number 0.0 6382978728 terminate or repeat

True or False-Four measurable properties of matter are mass, weight, volume, and pressure.

What is the total cost for an item that costs 26.50 and has a sales tax of 6%

Solve the following system of equations. - 3x + 5y = 80 x + 5y = 40 A. x = - 10, y = 10 B. x = 2, y = 17.2 C. x = 8, y = 6.4 D. x = 10, y = - 10