Unit 2 Math Review!

Equations

100

-126 = -3x + (-6 (4x + 3))

4

200

-5 + (-7 (-2 - 4x)) = 205

7

300

7/3 ( -7/2 m - 7/2) = - 98/3

3

400

2 (2 - x) = -2x + (-2 (x + 1))

-3

500

-2 (3 + 3x) = -2 (-2x + 3)

0

Inequalities

100

Graph numbers larger than but not including 7

open circle on 7, arrow going towards larger numbers

200

Dunkin was sure he didn't score less than a 73 on his algebra test. Show his possible scores on a graph.

closed circle on 73, arrow going towards smaller numbers

300

Emma and Eve discussed that in 1 sitting, they would eat a minimum of 1 donut but no more than 4 donuts. Graph on a number line the number of donuts they would consume. 

closed circle 1, closed circle 4 connected

400

Zander says "unc" in class at least 7 times. If he says it no more than 23 times, Ms. Sugg will give him a sticker. If Zander is saying "unc" and gets a sticker at the end of class, graph how many times he could have said "unc."

both closed circles

500

Graph x is at least 2 units away from 3.

I will check!

Algebraic Fractions

100

2/x     +    y/x

(2+y)/x

200

3y/y + 84/2z

(6yz+84y)/2yz

300

x/2 + 4x/5

13x/10

400

6/2xy + 2/3x

(18+4y)/6xy

500

a/c   -     4/2c    + 36y/9  -   6y/c

(72ac - 90a -36)/18c

Literal Equations

100

solve for a

u = b + ak

a = (u-b)/k

200

solve for a

a/m = n/p

a = mn/p

300

solve for a

u = -9a - 3 - 4b for a

a = (-u - 3 - 4b)/9

400

solve for x 

3 + 2x = 4v + w

x = (-3 + 4v + w)/2

500

g = 2(r + 3d - 6x)

x = (-g + 2r + 6d)/12

Unit 1 Topics

100

Which is a better buy? An 18oz jar of Nutella for $7.38 or a 27 ounce jar for $15.39?

The 18oz jar is a better buy

200

At a movie theater, the cost of admission to a matinee is $5.25. If this price represents a 30% discount from the evening price, find the evening price to the nearest cent,

$7.50

300

Maddie ran 1000 feet in 80 seconds.  What is Maddie’s speed expressed in miles per hour? (There are 5,280 feet in a mile).

8.52 mph

400

Suppose 6 videos were added to a video collection that has 30 videos. What is the percent of change?

20% increase

500

Joseph is constructing a model building on the 3D printer using a 1:300 scale.  The base of Joseph’s model is a rectangle that has side lengths of 2 in. and 3 in. What is the area of the base of the actual building in feet?

3750 ft²