SOLUTION: Please help, this word problem looks as if it should be easy, but I don't know how to come up with the solution. Can you please explain. A percentage bar graph is sometimes used

Algebra.Com
Question 465050: Please help, this word problem looks as if it should be easy, but I don't know how to come up with the solution. Can you please explain.
A percentage bar graph is sometimes used like a circle graph. If the bar is 8 cm, how long is each piece?
10% 30% 12% 27% x%
Found 2 solutions by jorel1380, solver91311:
Answer by jorel1380(3719)   (Show Source): You can put this solution on YOUR website!
If the bar is 8 cm., then
10%=.1x8=.8 cm
30%=.3x8=2.4 cm
12%=.12x8=.96 cm
27%=.27x8=2.16 cm
x%=x/100x8=8x/100 cm..
Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!


Convert each of the percentages to a decimal (move the decimal point 2 places left and drop the percent sign). Then multiply the decimal fraction times 8 centimeters to get the measure of the bar representing that percentage. I presume x% is what is left after accounting for the 10, 30, 12, and 27 percent. Add the given percentages and subtract the sum from 100. The result is the value of x.


John

My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism
RELATED QUESTIONS

I don't know what kind of Algebra this is. I am 57 years old and trying to help my... (answered by College Student)
I am pretty sure that this is the right Algebra i would like help with. If you don't... (answered by stanbon,solver91311)
Hello night owls, if anyone can help me with this, I would be so grateful. I really want (answered by josgarithmetic)
This is a word problem involving linear programming. The problem is:You have 180... (answered by stanbon)
I made up this problem, but I don't know how to solve it. It looks easy, but I get... (answered by longjonsilver)
Can you help me with this problem. I don't know how to solve it.... (answered by CubeyThePenguin)
What is the total interior angle of a regular polygon if t=20 triangles can be drawn... (answered by Alan3354,josgarithmetic)
Okay, here goes another easy one that I can't solve: Printer A can print a report in 3... (answered by amnd)
Can someone please help me with this word problem? Looks like its dealing with... (answered by rothauserc)