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Problem 8

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**Slide 1:**Problem 8

Circle graph
Raemi Brandon Problem Name
The circle graph presents the percent of colored gems in a collection.
If the collection has a total of 50 gems, how many gems are violet?

First remember that all percentages must add to 100.
So to find the percent that is missing we must add 23+32+20+21= 96.
Then we need to take 100 and subtract 96
This equals 4/100 or 4% or .04
To find the number of gems that is 4% of 50 because there are 50 gems total you need to multiply .04 X 50= 2
2 is the answer
Number 8 The circle graph presents the percent of colored gems in a collection. If the collection has a total of 50 gems, how many gems are violet?
A). 2
B). 3
C). 4
D). 5 Problem Name .23x50= 11.5
.32x50= 16
.21x50= 10.5
.20x50= 10
11.5+16+10.5+10=48
50-48=2 There are 50 gems total:
Of that, 23%x50= 11.5 blue, 20%x50=10 red, 21%x50=10.5 yellow, and 32%x50=16 green. Together the gems add up to 48 Since there are 50 gems total we need to subtract 48 gems from 50, so 50-48=2 violet gems!
Problem Name

**Slide 6:**Objective

To find and/or interpret percentages or quantities given by the pie charts

Problem Name Problem Name Problem Name Fernando surveys the students at his school to find out their favorite type of music.
The results are shown in the circle graph below.
What is the percent of students who chose rap or country
as their favorite type of music?
A).18%
B).19%
C).37%
D).55%
http://nces.ed.gov/nationsreportcard/mathematics/ Problem Name Problem Name The graph shows the different colors of cows. What percent of cows are neither black nor brown?
A). 17
B). 20
C). 27
D). 45 Problem Name Wal-mart is selling five kinds of cookies for Christmas, there are 100 cookies total, what percent are chocolate chip and molasses?
A). 23
B). 15
C). 38
D). 40 If the Milton’s receive $150,000 per year, how much money is spent on savings
and food? Problem Name A). $32,000
B). $6,908
C). $72,000
D). $67,500 http://tutor_me.tripod.com/book/images/budget.gif What percent of the teenagers day is spent either at school
or sleeping? Problem Name A). 75%
B). 42%
C). 25%
D). 67%
www.themathlab.com/dictionary/pwords/pwords.htm These are the kinds of movies shown in the local movie theater, if 100 movies are shown each week, how many of them are not comedies? Problem Name www.statcan.ca/.../power/ch9/piecharts/pie.htm A). 27
B). 73
C). 64
D). 32 There are 133 snow cones, what percent
are cherry? Problem Name Blue Raspberry
Grape
Orange
Kiwi
Blueberry
Cherry 30 12 30 17 25 19 A). 33.25%
B). 39.9%
C). 22.61%
D). 19.5%

**Slide 17:**ANSWER PAGE

B 8. A
C 9. B
B 10. A
D
A
C
D