Unit 8 Review

Which description represents an equation?

• A. A number less than or equal to negative seven and three-tenths

• B. A number minus twelve is forty-eight

• C. Two times a number minus eleven

• D. A number to the fifth power

There were 25 people on the bus after 3 people got off the bus. Which equation can be used to find x, the total number of people on the bus before 3 people got off?

• 20 - f = 440

• 20f = 440

• f/20 = 440

• 20 + f = 440

A soccer team was losing by 15 points. Then 3 players each scored an equal number of points, and the team won the game. The opposing team did not score any additional points. The inequality 3p > 15 can be used to determine the number of points each of the 3 players scored to win the game. What is the solution to the inequality?

• p > 5

• p > 4

• p > 3

• p > 2

• A. Sarah divided x marbles into 10 boxes, and there were at most 5 marbles in each box.

• B. Sarah separated x books on 10 shelves, and there were more than 5 books on each shelf.

• C. Sarah poured x ounces of juice into 10 cups, and each cup had no less than 5 ounces of juice.

• D. Sarah shared x cookies among 10 people, and each person received less than 5 cookies.

A circle has 10 equal sections. The circle has 360°. Each section is k°. What is the value of k, the number of degrees in each section of the circle?

• k = 36

• k = 48

• k = 30

• k = 72

• A. x = 5

• B. x =10

• C. x=3

• D. x=20

Which inequality is true if p = 4.2?

• 3p < 12.6

• 16.8 ≤ 4.5p

• 5p > 21.0

• 10.5 ≥ 2.5p