All Things Percents!
What is the Percent Formula?
Percent over 100 is equal to part over whole!
Two ______ make a proportion.
Ratios
How do you find sales tax?
Item Price + Sales Tax
What is the goal of a unit rate problem?
find the amount per 1
How do you know a math problem is an equation?
It has an EQUAL sign
What is the Percent of Change formula?
Percent over 100 is equal to Change over Original
How many different ways can you write a ratio?
3
How do you find income tax?
Gross Income - Income tax
When solving a measurement conversion problem, the numbers for the first fraction come from the _______, while the numbers from the second fraction come from the _______.
1. Word Problem
2. CHART
Write an example of a ONE-STEP equation.
Answers Vary:
5x = 25
When finding percent:
Is means _____ while of means ____.
Is means PART while of means WHOLE.
Solve: How many pounds are in 96 ounces if:
1 lb = 16 ounces
6 pounds
What are the three examples of income taxes discussed in class?
1. Federal
2. Social Security
3. Medicare
Represent 65 out of 100 as a fraction, decimal, and percent.
Fraction: 13/20
Decimal: 0.65
Percent: 65%
Draw and label the "Classifying Rational Numbers" Venn Diagram.
Inside to Out:
Counting, Whole, Integer, Rational
Solve: 19 is what percent of 95?
20%
A bowler scores 1,106 points in 14 games. How much did they score per game?
79 points per game
If Santiago has a gross income of $1,850 but has to pay 6% to social security, what is his net income?
$1,739
$82.00
Solve:
-11.84 - (-2.983) =
-8.857
Solve: What is 125% of 64?
80
Solve.
2000: Pizza costs $7.50
2015: Pizza costs $9.00
What is the percent of change in the cost of pizza?
20 percent
If a DVD costs $18.50 with a sales tax of 8%, what is the total cost of the DVD?
$19.98
If getting on Ms. Spear's nerves cost $5.00 last week but this week it costs you $6.50, what is the percent of change in the cost of getting on Ms. Spear's nerves?
30%
Solve:
5x + 3.5 = -1.5
x = -1