DCMAM
Proportions
Word Problems
Inequalities
Relations and Functions
100
x+7=10
x=3
100
x/3 = 16/12
x=4
100
What is 20% of 200?
(20%)/100=x/200
x=40
100
Graph the following
x>3
Open circle on 3, arrow pointing to the right.
100
Is this a function?
No.
200
3x+4-2x=10
x=6
200
x/1.2=4.62/0.88
x=6.3
200
A baker uses 6 cups of flour to bake 3 loaves of bread. How much flour is needed for 10 loaves?
6/3=x/10
x=20 c u p s
200
Solve the following
-20x>40
x<-2
200
What is the domain of the graph?
-3<x<3
(-3,3)
300
2(3x+4)−x=5x+10-2
6x+8-x=5x+10-2
5x+8=5x+8
8=8
Infinitely many solutions
300
(2x-5)/16=5/7
What is 8.21
300
Sarah earns $10 per hour babysitting, and she has already saved $50. She needs at least $200 to buy a new phone. How many hours does she need to babysit to meet her goal?
10x+50>=200
x>=15 hr
300
Solve.
-2(2x+5)<=5x-10
x>=0
300
What is the domain of this graph?
x>=-2
[-2,oo)