What is a....
What is a percent?
(%) a percent is a ratio that compares a number to 100
Write each ratio as a percent
8 to 100
12:100
16/100
8%
12%
16%
Write each decimal as a percent
0.36
0.005
2.13
36%
0.5%
213%
Write the fraction as a percent
1/4
7/8
1/3
25%
87.5% or 87 1/2 %
33.3% or 33 1/3%
What is
48% of $150
6% of $30
36% of 75
72
1.8 or 1 4/5
27
What is a decimal?
A number less than 1 but greater than 0
Solve
9/25=n/100
14/32=n/100
2/20=n/100
n=36
n=43.75 or 43 3/4
n=20
Write each percent as a decimal
6%
42%
0.6%
0.06
0.42
0.006
Solve
9/36
19/90
25%
21.1% or 21 1/9%
Estimate
40% of $364,000
15% of $300
150,000
45
What is a fraction?
Represents part of a whole number (with a numerator and denominator)
Forty-five out of 100 camera companies include a carrying case with each camera purchased. What percentage of camera companies do not give away a carrying case with each purchase?
55%
Write whether each decimal is greater than or less than 100%
0.05
0.167
2.13
0.99
1.80
less than
less than
greater than
less than
greater than
Solve
13/25
52%
Solve:
What percent of 15 is 9?
What percent of 200 is 8?
px15=9; 60%
px200=8;4%
a charge on the cost of goods or services computed as a percentage of the total sales price
Suppose 11% of Eugene Bible College's student population have normal vision. What percent of the student population does not have normal vision?
89%
Write each decimal as a percent
0.09
0.5
1.25
9%
50%
125%
Find the percent
8/25
7/20
32%
35%
Find the discount and how much you will pay
Candles $16 Discount 25%
Bed $400 Discount 35%
Chest $290 Discount 10%
$4
$140
$261
What is a discount?
an amount or percentage of the original price taken off of the original price
Mrs. Schenk budgeted $100 for video equipment. She spent $57 on a tripod. What percent does she have left to spend?
43%
Write a >, <, or =
0.4 ___ 4%
15% ____ 1.5
70% _____ 0.7
0.09 _____ 90%
>
<
=
<
Use mental math to find the percent
1/2
7/10
3/4
1/10
1/4
50%
70%
75%
10%
25%
Find the amount of sales tax and how much you will pay
Jacket $70 Sales tax 6%
Watch $45 Sales tax 3%
Camera $200 Sales tax 4 1/2%
$4.20
$1.35
$9