10th Grade Ch 2 Algebra

1 step equations

100

x+2=16

x=18

200

-3x=90

x=-30

300

(x/-3)=-22

x= 66

400

(3/4)x=2/3

8/9

500

0.25x=2

x=8

2 step

100

4x-2=22

x=6

200

80-3x=2x+5

x=15

300

(1/2)x+5=-2

x=-14

400

(2/3)x-8=(-2/3)x+2

x= 15/2

500

-1.5x-12=10-x

x=-44

solving absolute value eq

100

l x+6 l = 21

x= -27

x= 15

200

l -X l -1= (2/5)

x= (7/5)

x=(-7/5)

300

3 l x-2 l = 12

x= 6

x= -2

400

( l x+5 l ) / 3 = 2

x= 1

x= -11

500

-2 l 9x-2 l = 4

NO solution

proportions

100

(2/x) = (8/4)

x= 1

200

(13/x) = (12/6)

x= 6.5

300

DOUBLE JEOPARDY (2x points)

One square has a side of 24 ft and another square has a side that is 1.5 longer. What are both Areas and Perimeters? 

1st- A- 576ft2        P= 96ft

2nd- A= 1296ft2    P= 144 ft

400

One rectangle has width of 7 and height of 2. The next rectangle has a height of 7 and a width of x. Solve for X.

x= 24.5

500

A man is 6 ft and casts a 10 ft shadow. A woman casts a 7 ft shadow. How tall is the woman?

4.2 feet

percents

100

Find 5% of 60

3

200

What percent of 14 is 56?

400%

300

90% of what number is 120? Round to the tenth

133.3

400

A student answered 32 questions right and 8 questions wrong. What percent was answered correctly?

80%

500

Earths surface area is about 197 million sq miles. About 58 million sq miles is land. What percent is water?

70.56% or 71%