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Grade 8 Spiral Review

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10.) What is the product of 7.2 x 10^5 and 3.5 x 10^-9?

2.52 x 10^-3

#19

There is no x and y values to make the equations true.

#7

8.984 x 10^-3

#5

9 11 19

#21

Graph B

17.) Solve: 6x + 1/4(2x -1) = 10

#20

The lines intersect at the point (5, -5).

#26

13.7 yards

#14

x = 4

#6

4

#2

11^2

13.) Find the product. 1.12 x (6.01 x 10^4) = ?

6.7312 x 10^4 OR 67,312

#11

3.5 x 10^4

#1

9/16

#22

Graph D

#24

(-3,-5)

15.) What is the solution of 1/2x + 5x =33 ?

x = 6

#27

13.6 inches

16.) Find the solution: x + 1/4(x - 2) = 7

x = 6

#23

(-3,-6) and (3,0) *The x-values can NOT repeat!

#28

6.3 units

#9

4 x 10^3

#25

a = 8.7 feet

18.) A movie theater charges $15 for an adult ticket and $10 for a senior ticket. On a particular afternoon, the theater sold a total of 85 tickets and collected $1,075 in revenue. How many adult tickets and how many senior tickets were sol

The theater sold 45 adult tickets and 40 senior tickets.

#3

9^11

#8

7.0606 x 10^12

#4

16

#12

4.8 x 10^4