FUN WITH PERCENTS
The plantery received a shipment of 40 plants on Wednesday.
BY Friday, 82.5% of the plants had been sold.
How many were sold?
82.5%/100 x 40 = 33 plants
A baseball park has 40,000 seats, of which 13,040 are box seats and 18,200 are reserved seats. What percent of the seats are box seats? (Tenth of a dec)
13040/40000=.326 x 100 = 32.6%
The Jets won 40 games out of 64, while the Giants won 32 games out of 50.
Which team had the higher percent of wins?
Giants at 64%
Jet win %: 40/64 = 62.5%
Giant win %: 32/50 = 64%
Write 4.125 as a percent?
4.125 x 100 = 412.5%
If Jack has 783 beans and Warren has 8/9 of the amount that Jack has.
How many beans does Warren have?
8/9 = .888888 x 783 = 696 beans are WARRENS
Ms. Owens is in debt. Last month her debt was $1,500. This month her debt is 167% of that. What is her debt this month in dollars?
167% /100 = 1.67 x 1500 = $2505 of debt
A real-estate agent receives 3% of the price of the property the agent sells. What is the agent making for selling a house for $118,000?
$3,540
P = 3%/100 = .03 x 118 000 = $3,450
On the first day of March,
94 of 1175 students at Brown Junior High were absent.
What percent of the students were in school?
94/1175 = 0.08 x 100 = 8% of students absent
100% - 8% = 92% of students in school.
In a school, 12% of all students participate in the Bowling Club. If there are 500 students in the school, how many do NOT participate in the Bowling Club?
P = 12%/100 = .12 x 500 = 60 students participate
Amount that does not participate
500 - 60 = 440 students
There are 60 students that participate in the club and that number must be subtracted from the total to find the answer.
Write 0.65% as a decimal
0.65% is less than 1%
so 0.0065 or
0.65% / 100 = 0.0065
A Spider Monkey's tail is 64% of its body length.
If a spider monkey is 55 inches long - how long is its tail?
64%/100 = 0.64 x 55 [body length]
= 35.2 inches [tail length]
There are 40 6th graders and 28 7th graders in a group. 15% of the 6th graders and 25% of the 7th graders are car riders.
How many car riders are in the group altogether?
.15 x 40 = 6 and .25 x 28 =7
6 + 7 = 13 car riders
At Brookpark Middle School, about 25% of the students have curly hair.
If there are 643 students in the school how many have curly hair?
160.75, which equals 161 students.
There can't be 0.75 of a student so you round.
25%/100 = 0.25 x 643 = 160.75 = 161 students
Last year the Midas Middle School cafeteria served pizza on 12% of the school days.
If there were 175 school days, how many times was pizza served?
21 days
P = 12%/100 = .12 x 175 = 21 days
65% of students do not study prior to tests.
If there are a total of 700 students, how many study for tests?
65%/100 = 0.65 x 700 = 455 students do not study for their tests so 700 - 455 =
245 Students study
0.097
Decimals → Percent
0.097 x 100 = 9.7%
The base of the triangle is 80% of its Height.
It is 15 feet high. What is the Area of the triangle?
80%/100 = 0.80 x 15 = 12 ft - BASE
Area = base x height /2
Area = 15 x 12 /2 = 90 ft2
Put the following in order from least to greatest:
25%, 1/3, 0.125, 3/8, 14%
Put them all into decimals first then:
0.125, 14%, 25%, 1/3, 3/8
Suppose 42 out of 60 people read the newspaper everyday.
What percent of the people DO NOT read the newspaper every day.
42/60=70% of people read newspaper every day
Percent of people who don't read paper everyday = 100% - 70% = 30% of people
On a 75-question test, Maureen answered 84% correctly.
How many questions did she NOT answer correctly?
12 questions
Since she answered 63 correctly, you have to subtract that from 75 and you get the answer.
P = 84%/100 = .84 x 75 = 63 questions answered correctly
Questions answered incorrectly = 75 - 63 = 12 questions
0.03% of 5623 is what number? Round to hundredths
0.03%/100 = .0003 x 5623 = 1.6869
= 1.69
15.2%
Percent → Fraction (lowest term)
15.2% / 100 = 0.152
= 152/1000 =76/500 = 38/250 = 19/125
The price of a new version of a laptop is 225% of the original version. The original version cost $399. What is the cost of the new version?
225%/100 = 2.25 x 399 = $897.75
In order to select new board members, the French club held an election. 63 members voted in the election and 12 did not vote.
What percentage of the members voted?
63+12=75 people all together
63/75 = 0.84 x 100 = 84% members voted
If there are 270 8th graders, 180 7th graders, and 210 6th graders. What percent of the student population are 8th graders? (tenth of a percent)
Total amount of students: 270 + 180 + 210 = 660
270/660=.409090.. x 100 = 40.9%
Some doctors recommend that no more than 30% of a person's daily calories come from fats. Following this recommendation, if you eat 2,400 calories a day, what is the maximum amount that should NOT come from fats?
1,680 calories
100% - 30% = 70% not from fats
P = 70%/100 = .70 x 2400 = 1,680 calories NOT from fat.
You raised $420 during a fundraising event last year. This year you need to raise 35% more.
How much money do you need to raise this year.
35%/100 = 0.35 x 420 = 147
147 + 420 = $567 needs to be raised this year
Which number is larger?
0.023, 22% or 0.0023?
2.35%, 22%, .23% so 22%
The width of a rectangular room is 80% of its length.
If the length is 15ft,
what is the area of the room?
80%/100 = .80 x 15 = 12 ft
The width is 12 ft
A=lw A=15x12 A=180 ft2
Clean Machine is Princeton's premier house cleaning service. The company used 4,510 gallons of soap last year, and 80% more than that this year.
How many gallons of soap did the company use this year?
80%/100 = .80 x 4510 = 3608
3608 + 4510 = 8118 gallons was used this year