Math homework help, percents?

Question

I have 5 numbers:

38
80
27
65
96

how do i convert these numbers to percents to make a circle graph?

oh! i also forgot to ask, how do i change these numbers to 'fractional equivalents' ? or decimals?

Answer 1

To make a "pie chart" with each number representing a different sized slice of pie you do this:

add all the numbers to get:
306

then take your numbers in sequence and divide each one by 306 then times 100 to get the percentages.

38/306 * 100= 12.4 %
80/306 * 100= 26.1 %
27/306 * 100= 8.8 %
65/306 * 100= 21.3 %
96/306 * 100= 31.4 %

note the %s add up to 100

Now, to make a pie chart imagine a pizza with 306 slices and you shade in the number given as slices.
So the first one you shade in 38 slices of the 306 in red, for the next you shade in 80 slices of the 306 in blue then 27 slices in green and so on until you have a multicolored circle with shapes resembeling slices of pie hence the name pie chart.

if you want exact numbers, then the suggestion to multiply by 360 (360 degrees in a circle) is a valid one for reproducing a more accurate graph when shading each section with the approprate degree measure. However, there are many plotting utility programs that will do this for you on the web, just do a search for pie chart plotters.

Answer 2

Sum of the numbers:
= 38 + 80 + 27 + 65 + 96
= 306

Answer:
% of each number:
38/306 = 12 64/153%
80/306 = 26 22/153%
27/306 = 8 14/17%
65/306 = 21 37/153%
96/306 = 31 19/51%

Total = 100%

Answer 3

I assume by a circle graph, you are referring to a pie chart.
First you sum the numbers: 306
Now take each item and divide it by 306:
38 / 306 = .124 = 12.4%
80 / 306 = .261 = 26.1%

Do this for every number and multiply each portion by 360 degrees to see what the measure of each pie slice will be in degrees.