8th Review

Monomials/Exponents

100

I will rewrite this on the board.

3x^3 * 3x

9x^4

200

I will rewrite this on the board.

x^2y^3 * (x^2y^2)^4 

x^10y^11

300

I will rewrite this on the board.

u * (2u^4v^2)^2

4u^9v^4

400

I will rewrite this on the board.

(-2nm^-4)^2 * (2n)^2

16n^4/m^8

500

I will rewrite this on the board.

2x^3 * -2^4y^3/(yx^2)^2

-4x^3y

Linear Equations

100

The slope in the following equation.

y = 7/4x - 3

7/4

200

Slope between the two points

(-7, -19), (8, 5)

8/5

300

Slope between the two points.

(17, -15), (-9, -2)

-1/2

400

The equation that has a slope of -4 and goes through the point (1, 1)

y = -4x + 5

500

Write the equation of the line that has a slope of -3/2 and goes through the point (4, -1)

y = -3/2x + 5

Systems

100

What is the solution the the following system?

y=6

5x - 3y = 7

(5, 6)

200

What is the solution the the following system?

4x + 4y = 8

y = -2x + 6

(4, -2)

300

What is the solution the the following system?

y = -4x + 3

y = 6x + 13

(-1, 7)

400

What is the solution the the following system?

-9x - 6y = 0

7x + 6y = 8

(-4, 6)

500

What is the solution the the following system?

6x - 9y = 15

-9x + 18y = -18

(4, 1)

Equations

100

-7(1 - 4n) = -91

-3

200

r - 6 - 4 = 8 + 4r

-6

300

-3a - 6(a - 6) = 90

-6

400

8(-3 + 6n) + 4n = 27 + n

1

500

2(7x + 7) - 7(x - 6) = 7x + 7x

8

Misc.

100

There are 25 marbles in a bag. If 18 of them are yellow and the rest are blue, what is the probability that you will pick a blue marble? (Your answer must be a percent)

28%

200

Jerry went food shopping and spent $108.53 on groceries. What was his total cost if there is a 6% sales tax?

$115.04

300

Kyle is purchasing a truck that costs $42,000.  The salesman gives Kyle a deal and offers him a 15% discount.  What is the cost of Kyle's truck if there is a 7% sales tax?

$38,199

400

If Mr. G takes out a 10 year loan for $15,000 at a 5% simple interest rate, find out what his monthly payment will be.

$187.50/month

500

The speed of a dog is 150% the speed of a squirrel.  The speed of a cheetah is 310% the speed of the dog. If the squirrel can run 12 mph, how fast is the cheetah? Round to the nearest tenths place.

55.8 mph