Pre-Alg Chapter 3.4-3.6

Vocabulary

100

A comparison of two numbers using division

ratio

200

Two numbers that have the same absolute value but different signs

opposites

300

The sum of the values in a data set divided by the number of values

mean

400

The difference of the greatest value and the least value in a data set.

range

500

A mathematical statement formed by placing an inequality symbol between two expressions

inequality

Solving Inequalities with Addition/Subtraction

100

x+13<=20

x<=7

200

y+11<23

y<12

300

x-5>=14

x>=19

400

15>=z+9

z<=6

500

26<8-m

m<-18

Solving Inequalities with Multiplication/Division

100

12c<=96

c<=8

200

b/7>=13

b>=91

300

3>a/-9

a> -27

400

-68<-17d

d<4

500

-196<14z

z> -14

Solving Multi-Step Inequalities

100

-8m-6<10

m> -2

200

24>=5z-6

z<=6

300

p/28+3<=9

p<=168

400

12-4q>=6q+2

q<=1

500

6(3-a)<=8a-10

a>=2

Solving More Multi-Step Inequalities

100

-8y+5<=29

y>=-3

200

8>2+b/3

b<18

300

3x-5>6x+13

x<-6

400

6x-5>12x+1

x<-1

500

A ski resort charges $45 for an all day lift pass and $40 per day for renting boots and a snowboard. At a store, you can buy boots and a snowboard for $360. How many times must you go snowboarding at the ski resort for the cost of buying your own boots and snowboard to be less than renting them?

10 times or more

Translating Inequality Statements

100

The value of x is greater than or equal to 14

x>=14

200

x is not more than 13

x<=13

300

Value of x is at most 8

x<=8

400

The sum of four and twice a number is less than sixty

4+2x<60

500

If 5 times a number is decreased by twelve it is at least ten

5x-12>=10

Random Trivia

100

What guards the Ark of the Covenant in "Raiders of the Lost Ark"?

Snakes

200

What year was McDonalds' Big Mac sandwich first introduced?

1967

300

What US state includes the telephone area code 505?

New Mexico

400

What food gave Mickey Mouse his first spoken words?

Hot Dogs

500

True caviar is made with which fish’s eggs?

Sturgeon