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cseiver420
13.12.2019 •
Mathematics
The histogram shows the ages of the volunteers who cleaned up a beach.
what percent of the volunteers was at least 15 years old but no more than 24 years old?
enter your answer in the box.
%
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Ответ:
30%
Step-by-step explanation:
Age No. of volunteers
10-14 3
15-19 2
20-24 7
25-29 8
30-34 5
35-39 5
Total no. of volunteers = 3+2+7+8+5+5 =30
Now we are supposed to find What percent of the volunteers was at least 15 years old but no more than 24 years old
15-19 2
20-24 7
So, total no. of volunteers was at least 15 years old but no more than 24 years old = 7+2=9
So, percentage of volunteers was at least 15 years old but no more than 24 years old:
=![\frac{9}{30} \times 100](/tpl/images/0417/8615/aeb66.png)
=![30\%](/tpl/images/0417/8615/a4543.png)
Hence 30 % of volunteers was t least 15 years old but no more than 24 years old.
Ответ:
66.67% or 2/3
Step-by-step explanation:
Assuming that all of "last year's math team's" members are on this year's team, we simply divide the members from last year by the members this year.
8/12 = 66.66 repeating or 2/3
Thus, we have our answer