MATH-GRADE 8 quiz

Use the table to answer the question,

Rounding the nearest dollar, which shows how to estimate the cost of purchasing five sports ball, one of each type

• $31.00=$4+$1+$12+$8+$6

• $32.00=$5+$1+$12+$8+$6

• $34.00=$5+$1+$13+$9+$6

• $36.00=$5+$2+$13+$9+$7

Marty has $80 to spend at a sporting good store. He will spend $56 on a shirt, and then buy some darts. Each box of darts costs $6. He wants to buy as many boxes as possible. Which equations shows how to find the number of boxes of darts, x, he can buy?

• 80=56+6x

• 80=56 -6x

• 80=(56)(6x)

• 80=56/6x

What is the measure of angle x in the picture?

• 30°

• 60°

• 80°

• 150°

Which expression represents 4 less than twice a number, n?

• 4-n

• n-4

• 4-2n

• 2n-4

The table shows Katelyn’s bowling scores for a four week time period. Her mean bowling score for the four weeks was 136. She bowled 126 the fifth week. What will be the change from the 4-week to the 5-week mean?

• Decrease by 10

• Decrease by 2

• Stay the same

• Increase by 3

What is the value of 2/3 + (- 1/6) ?

• -1/2

• 1/3

• 1/2

• 5/6

Which expression has a value of -2?

• A. |2|+|-4|

• |-2|-|-4|

• |4|-|2|

• |-4|+|2|

Beck is tossing a six-sided number cube labeled 1,2,3,4,5 and 6. What is the probability of tossing 6 two times in a row?

• 1/36

• 1/6

• 1/3

• 1/2

Which represents the value of x in 6-4x≤26?

• x≤-8

• x≥-8

• x≤-5

• x≥-5

Using the pythagorean theorem, what is the value of x?

• √6 units

• √20 units

• 6 units

• 20 units