7th grade math reveiw

Scientifc Notation

100

0.000012 in scientific notation

1.2x10^-5

200

300,000,00 in scientific notation

3.0x10⁸

300

45 million is scientific notation

4.5x10⁷

400

3.05x10⁵

305,000

500

520,000,000 in scientific notation

5.2x10⁸

Proportions

100

Eli can type 1 page in 10 minutes. How many total pages can he type in an hour?

6

200

what statement can you make based on the pattern below

5,20,80,320

The common ratio is 4

300

Kevin mixes paint using 8 ounces of yellow paint for 3 ounces of white paint. At this rate, how many ounces of white paint would be mixed with 24 ounces of yellow paint?

9

400

1/2 inches=3 miles

Jerri measured 3 1/8 inches between towns. what is the distane in miles?

18 3/4 miles

500

Manuel can paint 5 pics in 12.5 hours. At this rate what would be the proportion to find p if he painted for 8 hours?

5/12.5=p/8

Random

100

At Gamestop, 30% of childrens movies are animated. If a customer randomly chooses one what is the probability the movie he choses is animated?

3/10

200

10^-7

0.0000001

300

If point A's coordinate is (-3,8) and if you want to reflect it over the y axis,what would be the coordinates?

(-3,-8)

400

What is the value of this 

(-15)-(-18)/3

-9

500

Solve this equation

4x-9+8*3=42

x=10

Equations

100

what is the solution to d-10=-30

d=-20

200

Represent this sentence

Twice a number,n, decreased by six is fourteen

2n-6=14

300

x/-4=10

x=-40

400

c/10=40

c=400

500

four less than a number, n, is fifteen

n-4=15

Slopes

100

What is the formula for slope?

rise/run

200

what is the slope of this equation

y=2x

2

300

what is the y intercept in this equation?

y=x+3

3

400

what is the slope of this equation?

y=5x

5

500

What is the y intercept of this equation?

y=9+8

8