Expressions & Equations
What is 100/50?
2
l4l=
4
What percent of 100 is 2?
2%
What is the ratio for 2:1 when multiplied by 10?
20:10
x + 6 > 10
x>4
4x5=
20
l-17l=
17
What is 40% of 20?
A recipe calls for 4 cups of flour for every 3 cups of sugar. How much flour is needed for 6 cups of sugar?
8 cups of flour
Solve: 2x + 3 > 11
x > 4
4x+5=13
x=2
46+-41=
5
What is 30% of 40?
12
A car travels 120 miles in 3 hours. At this rate, how far will it travel in 5 hours?
200 miles
5x - 4 ≤ 16
x ≤ 4
5(10+5-3)=
60
47-56+4=
-6
What is 35% of 40?
14
If I use 4.5 boxes to make 3 big boxes, how many boxes does it take to make 1 big box?
1.5 boxes
3(x - 2) > 12
x > 6
4x+56-4=76
x=6
5(46+-1)
225
What is percent? What does it mean? What symbol do you use to represent it?
A ratio whose second term is 100; percent means parts from 100. We use the percent symbol (%) to represent percent.
What is Proportional Relationships? Examples?
A proportional relationship is when two things change in such a way that they always stay in the same ratio. For example, if you’re buying pencils, and each pencil costs $2, the cost of 2 pencils would be $4. The amount of money you would pay is always proportional to the number of pencils you buy because the cost per pencil is constant(k).(They don't have to say that example, but it has to be a correct example.)
2x + 4 ≥ 10
x ≥ 3