Real-World Examples
Write the inequality: a number divided by 2 is at most 6
What is x/2 < 6
-2 = x/4
What is -8
Solve for y:
2y+1=3
What is y=1
-2x>8
What is x<-4
2x+1>5
What is x>2
Sonny needs to save money to buy a Nintendo Switch. He needs to save at least $300 in x amount of weeks. Write the inequality of how many weeks he needs to save for his switch if he saves $50 a week.
50x < 300
Solve for c:
c/2 + b = 5
What is c=2(5-b)
3x +7 > -2
What is x>3
5x+10<25
What is x<3
When we solve equations, we are "un-doing" the equation. Why is this the case and what is being undone?
What is (explanation from student)
solve for z:
1/2z+2b=c
What is 2(c-2b)
-5x +12 < -3
What is x>3
-3x-5>1
What is x<-2
How are negative numbers and inequalities related? What are the rules we use?
What is (insert explanation)
solve for m:
10m+2x=8
What is (8-2x)/10
7x - 12 > 3x +4
What is x>4
2(-3x - 2) >14
What is x<-3
You are saving to buy a new video game that costs $80. You already have $50 and sell candy for $2 each. Write an inequality to show how many candy bars you need to sell to have enough money for the game. SOLVE IT TOO!
What is 50+2x>80
What is 15 candy bars
14x - 12 = 16
What is 2
solve for x:
(ax+by)/c=d
Whatis x= (cd-by)/a
-5(x+5) < x-1
What is x>-4
10 - 5x < -5(3 + 2x)
What is x>-5