Act Algebra Math Review

Peter received the following four grades on his math tests: 86, 90, 88, and 96. What was Peter's average for the four tests? 

• 89

• 91

• 88

• 90

Tags

CCSS.7.EE.B.3

The average of four numbers is 27. A new number, x, is added to these four, and the new average of the five numbers is 25. What is the value of x? 

• 14

• 15

• 17

• 18

Tags

CCSS.6.EE.B.7

What is the sum of the range, mean, median, and mode of the following data set? 
15, 2, 7, 3, 11, 5, 12, 2, 6

• 28

• 17

• 23

• 32

What is the mean of the following set of numbers rounded to the nearest ones place? 13, 15, 100, 54, 345

• 100

• 135

• 105

• 106

• 0

• 1

• 2

• 3

Tags

CCSS.HSF.IF.A.2

Tags

CCSS.HSA.CED.A.2

The mean of five numbers of 40. The mean of the two smallest numbers is 25. What is the mean of the other three numbers? 

• 40

• 45

• 50

• 60

Tags

CCSS.8.EE.C.7B

Ashley scored 80, 80, 83, 85, 90, and 77 on her tests this semester. If she wants an average of 85 on all of her test, what would her score need to be on her final test? 

• 85

• 95

• 97

• 100

Tags

CCSS.7.EE.B.4A

Find the arithmetic mean of the given set of numbers:
0, 12, 10, 8, 15, 5, 20

• 8.33

• 11

• 10

• 12

If Point X is located at -10 on a number line and Point Z is located at 101 on the number line, what is the midpoint of line XZ?

• 43.5

• 44.5

• 45.5

• 46.5

Tags

CCSS.HSN.CN.B.6