Unit 5A Retention

Is this a solution?

100

Is x=5 a solution for the following equation?

x+8=12

Yes. x=5 is a solution for the equation.

200

Is x=37 a solution for the following equation?

x-29=18

No. x=37 is not a solution for the equation.

37-29=8 ne18

300

Is x= 3.5 a solution to the following equation?

x/7=5

No.

3.5/7=0.5 ne5

400

Is x=15 a solution to the following equation?

10x=1500

No. x=15 is not a solution to the following equation.

10*15=150 ne1500

Solve the Equation

100

Solve the following equation.

x+7=13

x=6

200

Solve the following equation.

x-14=29

x=43

300

Solve the following equation.

x/12=7.5

x=90

400

Solve the following equation.

13x=182

x=14

Write an Equation

100

2 PARTS:

Write a situation equation AND solve.

Miley had x panther paws, after a really good Friday before Spring Break, she earned 14 more panther paws. If she finished 3rd quarter with 89 panther paws, how many panther paws did she have before Friday?

Equation:

x+14=89

Solution

x= 75 panther paws

200

2 PARTS:

Write a situation equation AND solve.

Jackson earned $5 per day while babysitting her friend Jacklyn's dog. After Jacklyn returned, Jackson received $80. Write an equation and solve for the number of days that Jackson babysat.

Equation:

5*x=80

Solution:

x=16 days

300

2 PARTS:

Write a situation equation AND solve.

Trey x dollars and he wanted to split his money into 3 groups. 1 for spending, 1 for saving, and 1 for his car. If each group has $18, how much money does Trey have altogether?

Equation:

x/3=18

Solve:

x=$54

400

Rochelle has $x. She decides to give $21.55 to her sister. After giving money to her sister, Rochelle has $43.70. How much money did Rochelle have to start?

Equation:

x-21.55=43.70

Solution:

x=$65.25

Write an Inequality

100

You must be taller than 36 inches to go ice skating. Use the variable x to represent the number of inches.

x>36

or

36<x

200

You must be shorter than or equal to 4 feet in order to play in the indoor playground. Use x to represent the number of feet.

x<=4

or

4>=x

300

You must be at least 35 years old to be President of the United States. Use the variable x to represent the number of years you must be.

x>=35

or

35<=x

400

I usually sleep at most 8 hours each night. Use the variable x to represent the number of hours I sleep each night.

x<=8

or

8>=x

Solve the Inequality

100

Solve the following inequality.

5x>=20

x>=4

200

Solve the following inequality.

x+5.7<9.8

x<4.1

300

Solve the following inequality.

x/17<=51

x<=3

400

Solve the following inequality.

x-1,517>3,843

x>5,360