Unit 5 Lesson 9-11

Solving Inequalities

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7th Grade

This lesson contains **9 slides**, with **interactive quizzes** and **text slides**.

Unit 5 Lesson 9-11

Solving Inequalities

Change the following phrase into an algebraic equation: Kyles's heart beats at 50 beats per minute for a certain number of minutes. If the heart beat a total of 300 beats, how minutes did it beat for?

A

50 + m = b

B

50-m = b

C

50/m = b

D

50m = b

Inequality-mathematical sentence comparing two quantities that are not equal

uses the following symbols

example: m< 6 , read as m is less than 6

some possible solutions is 5, 4, 0, -1, 6 is NOT an answer.

Pick the inequality that matches the number line below:

A

m∠7

B

m≤7

C

m>7

D

m≥7

Pick the inequality that matches the number line below:

A

m∠−3

B

m≤−3

C

m>-3

D

m≥−3

Solve the following inequality for x

−3y ≤−27

−3y ≤−27

A

y<9

B

y≤9

C

y>9

D

y≥9

Solve the following inequality for x

8y>2

A

y>16

B

y>41

C

y<41

D

y<41

Solve the following inequality for n

n−10 > 14

n−10 > 14

A

n>24

B

n>4

C

n<24

D

n<4

Solve the following inequality for w

w+4 <−5

w+4 <−5

A

w>−1

B

w>−9

C

w<−1

D

w<−9