Question 154075This question is from textbook
: # of pets = # of students
0 6
1 7
2 3
3 5
4 or more 9
Rosa wanted to make a circle graph of the data, so she made the angles match the numbers in the chart by multiplying by 10. She got 60, 70, 30, 50, 90. There seems to be sime space left over, but Rosa said she just musthave measured the angles wrong with her protractor. How could you help her?
This question is from textbook
Answer by josmiceli(19441)   (Show Source):
You can put this solution on YOUR website! Start with 6,7,3,5,9. Then ask:
What part of the total is 6?
What part of the total is 7?
What part of the total is 3?
etc.
That list would be:
6/30, 7/30, 3/30, 5/30, 9/30
There are 360 degrees in a circle,
so find the fraction of 360 in each case
 ,  ,
 , , 
Doing the math:
 , , , ,
Add these up to make sure they total 
OK
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