PA - CH6

Solving Inequalities

100

5a > 25

a > 5

200

s / 2 < 10

s < 20

300

y / -13 < 0.5

y > -6.5

400

8.1 < 9y

y > 0.9

500

-2 1/2 y > -4

y < 1.6

Mult/Divide Fractions

100

2/5 ^. 3/16

(no calc)

3/40

200

-8/45  /  -10/27

(no calc)

12/25

300

(-3 1/4)(4)

(no calc)

-13

400

2 2/6 ^. 6 2/7

(no calc)

14 2/3

500

2 1/6  /  (-1 1/5)

(no calc)

-1 29/36

Mult/Divide Decimals

100

8 / 0.5

(no calc)

16

200

(8)(0.7)

(no calc)

5.6

300

13.42 / 67.1

(no calc)

0.2

400

(1.072)(52)

55.744

500

-15.32(0.0015)

(no calc)

-0.02298

Solving Equations

100

m / 3 = -5

m = -15

200

2/3 y = 3/7

y = 9/14

300

-1/2 y = 4 1/2

y = -9

400

-1/4 r = 3

r = -12

500

-1/5 m = 4 3/5

m = -23

Other Stuff

100

What is the mode of the following set of data:

82, 79, 93, 91, 93

93

200

What is 18/25 as a decimal?

0.72

300

What is the mean (to the nearest tenth) of the following set of data:

42, 51, 50, 43, 62, 61, and 45

50.6

400

Write the following number in scientific notation:

0.00546

5.46 x 10^-3

500

Write the following number in standard form:

4.21 x 10⁵

421,000