7.U5A.L9-11-Solving Inequalities

• 7th Grade

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?

1. 50 + m = b
2. 50-m = b
3. 50/m = b
4. 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:

1. m∠7
2. m≤7
3. m>7
4. m≥7

Pick the inequality that matches the number line below:

1. m∠−3
2. m≤−3
3. m>-3
4. m≥−3

Solve the following inequality for x
−3y ≤−27

1. y<9
2. y≤9
3. y>9
4. y≥9

Solve the following inequality for x

​8​​y​​>2

1. y>16
2. y>​4​​1​​
3. y<​4​​1​​
4. y<​4​​1​​

Solve the following inequality for n
n−10 > 14

1. n>24
2. n>4
3. n<24
4. n<4

Solve the following inequality for w
w+4 <−5

1. w>−1
2. w>−9
3. w<−1
4. w<−9