8th grade math final(Avrey)

Comparing Decimals

100

Is 0.9 greater than of less than 0.7?

0.9 is greater than 0.7

200

Is 1.54 greater than or less than 2.45?

1.54 is less than 2.45

300

Is 0.6 greater than or equal to 0.60?

0.6 is equal to 0.60

400

Is 4.93 greater than of less than 3.98?

4.93 is greater than 3.98

500

Is 5.53 greater than or less than 5.9?

5.53 is less than 5.9

Solve quadratic equations using Square roots.

100

Solve for z. z²= 49

7 or -7

200

Solve for a. a²= 81

9 or -9

300

z²- 64= 0

8 or -8

400

r²- 88= -59

Two real solutions

500

8u²- 32=0

2 or -2

Solve a system of equations using substitution

100

-4x+ 8y= 20. y=7

(9,7)

200

4x- 4y= 12. y=5

(8,5)

300

-3x- 2y= -18. x=4

(4,3)

400

-4x+ 4y= 8. x=-3

(-3,-1)

500

y= -3x+ 10= y=-2x+ 5

(5,25)

Write variable expressions for anithinetic sequences

100

-6,-5,-4,-3...

a_n= -7+n

200

28,56,84,112...

a_n= 28n

300

10,11,12,13...

a_n= 9+n

400

-3,-6,-9,-12...

a_n= -3n

500

6,12,18,24...

a_n= 6n

a₉= 54

All about percent

100

What is 15% of 150?

22.5 or 23

200

What is 60% of 300?

180

300

What is 5% of 16?

0.8

400

What is 633% of 1,522?

9,634.26

500

85 is 60% of what number?

142