Modeling
Josh caught at least 10 fish when he went fishing.
f >= 10
Graph on a Number Line:
x > 3
<-------------------------|------------------------->
Solve for x:
3x < 9
x < 3
Find 1 value of x that makes the statement true and 1 that make the statement false (label them).
2x + 1 > x
(answers vary)
true: x = 0
false: x = -10
When you divide or multiply by a negative to both sides, what do you do with the inequality sign?
Flip the direction
Isabella needs to dance more than 2 hours every day to become a professional
h > 2
Graph on a Number Line:
x + 4 >= 9
<-------------------------|------------------------->
x >= 5
Solve for x:
5x + 2 <= 22
x <= 4
Do ALL values of x make this true, some values of x, or NO values of x?
4x + 8 < 4x - 8
No values of x will make the statement true
What kind of triangle has 3 sides of equal length
You have $100 to spend on football equipment. The helmet and pads cost $47. Footballs cost $4 each. Write an inequality to show how many footballs you can buy.
100 >= 47 + 4f
Graph on a Number Line:
3x - 1 < 8
<-------------------------|------------------------->
x < 3
Solve for x:
-2x > 4
x < -2
Solve for x:
3x + 4 > 6x + 4
x < 0
What is the largest planet in our solar system?
Jupiter
Lee works as a car saleman. He makes $400 each shift and an additional $50 whenever he sells a car. His goal is to make at least $600 each shift. Write an equality representing the amount of money he makes from each shift.
400 + 50c >= 600
Graph on a Number Line:
-x + 2 >= 5
<-------------------------|------------------------->
x <= -3
Solve for x:
1/3x - 2 < 13
x < 45
Solve for x:
2(x + 5) <= 3x - 2
x >= 12
What country is the only country to ever use nuclear weapons in war?
United States of America
A pizza parlor sells pizzas for each $12 each. It costs $4 in ingredients to make each pizza. The pizza parlor needs to make $800 in profits to stay open. Find the minimum amount of pizzas that need to be sold to stay in business.
100 pizzas
Graph on a Number Line:
-4x - 7 < 9
<-------------------------|------------------------->
x > -4
Solve for x:
-1/2x + 4 >= 12
x <= -16
Describe all values of x that make the statement true
3(n + 2) <= 3n + 19
All values of x make the statement true
At what temperature does water freeze?
32 degrees F or 0 degrees C