Easy Inequalities
Inequalities
Compound Inequalities
Hard-ish
100

Write the word sentence as an inequality.

A number a minus 2.6 is more than 7.

a-2.6>7

100

x-6<=3

x<=9

100

8<3x+2<=17

2<x<=5

100

A one-way ticket at a subway costs $2.50. A monthly pass costs $125. For what numbers of rides should you buy the monthly pass?

more than 50 rides per month

200

Write the word sentence as an inequality.

A number times 3.4 is less than 8

3.4x<8

200

-5x>=-35

x<=7

200

x-2<-5 or x-2>=-2

x<-3 or x>=0

200

In the triangle, the value of x is greater than 3 times the value of y. What are the possible values of x?

x>105

300

What determines an open or closed circle?

The inequality symbol

300

x/-2<-3

x>6

300

You are hiking a trail over multiple days. At the start of your hike, you decide that you need to hike at least 25 miles in the first 4 days, but can't hike more than 35 miles, as you'll pass into swampy terrain where camping won't be possible. You want to hike the same distance each day. Write an inequality that represents the situation.

25<=4x and 4x<=35

300

6x-20<4x-8

x<6

400

How would this graph look?

10<x

Open Circle to the right

400

A pair of wireless headphones costs $160. Your friend has $70 and plans to save $12 each month. Describe the numbers of months your friend needs to save to buy the headphones.

at least 8 months

400

Write and graph an inequality that represents the numbers that are not solutions of

x-1.9<=6.1

x>8

400

Write and graph an inequality that represents the numbers that are NOT solutions of x+4.2>12.7

x<8.5

500

25 divided by a number is at least 4

25/x>=4

500

3x+2<=17

x<=5

500

9x-30<=5x-2

x<=7

500

A one-way ticket at a subway costs $2.50. A monthly pass costs $125. In February, there are exactly 4 weeks. You ride the subway twice each weekday and four times on Saturdays in February. About how much do you save by using the cheaper option?

$15