Problem 8

1
Problem 8

• Circle graph
• Raemi Brandon

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?
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2




23
32
20
21
?
This section will have animated blocks with
percents on them. Near the side will be 50 gems.
When clicked on the blocks will add themselves
together creating a total of 96. A magic block
will then appear with 100 on it. The block with
96 will then cover the block with 100 leaving
only 4 remaining, the block that is 4 will then
be the only block left standing. The block with
4 will then hit the 50 gems that have been
standing on the side and all but 2 of them will
disappear, therefore leaving only the answer to
the problem left.
Add all of the percents together and subtract
them from 100.
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3
First remember that all percentages must add to
100. So to find the percent that is missing we
must add 23322021 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
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
Number 8
4
.23x50 11.5 .32x50 16 .21x50 10.5 .20x50 10
11.51610.51048 50-482
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5
There are 50 gems total Of that, 23x50 11.5
blue, 20x5010 red, 21x5010.5 yellow, and
32x5016 green. Together the gems add up to 48
Since there are 50 gems total we need to subtract
48 gems from 50, so 50-482 violet gems!
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6
Objective

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

7
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8
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10
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/
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11
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
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12
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
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13
If the Miltons receive 150,000 per year, how
much money is spent on savings and food?
A). 32,000 B). 6,908 C). 72,000 D). 67,500
http//tutor_me.tripod.com/book/images/budget.gif
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14
What percent of the teenagers day is spent either
at school or sleeping?
A). 75 B). 42 C). 25 D). 67
www.themathlab.com/dictionary/pwords/pwords.htm
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15
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?
A). 27 B). 73 C). 64 D). 32
www.statcan.ca/.../power/ch9/piecharts/pie.htm
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16
There are 133 snow cones, what percent are
cherry?
A). 33.25 B). 39.9 C). 22.61 D). 19.5
12
30
17
19
25
30
Blue Raspberry Grape Orange Kiwi Blueberry Cherry
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ANSWER PAGE

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