Math
posted by Sadie
Last one! Please help!
South America's total population was 515,000,000 and the world's total population was 6,279,000,000. What percentage was South America rounded to the nearest tenth?

Chopsticks
515,000,000/6,279,000,000
Dont get intimidated by large numbers. Plug that into a calculator to find the answer. I don't know if that number fits into a calculator to be honest. 
Bella
it does it turns out: 1.8458...

Chopsticks
My calculator says 0.08
Which rounds to .1 
Bella
you're right...i forgot the '6' in the '6279000000' sry

Ms. Sue
Chopsticks  you forgot to convert your answer to a percent.

Bella
8%

Chopsticks
Oh.
.1 = 10% 
Bella
shouldn't you convert .08?

Ms. Sue
The problem states to the nearest tenth.
8.2%  Ms. Sue

Bella
Ms.Sue's right

Chopsticks
Oh dang sorry haha. I converted it to the nearest tenth when I saw .08, I forgot about the percentage in tenths.

Writeacher
Sounds as if Chopsticks needs to leave the math helping to the math tutors who don't forget these things ... so that other students don't go away with the wrong process and/or answers.
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South America’s population was 515,000,000 people in 2000 and 38,000,000 in 1900. To find the rate of increase, we should begin with subtracting to find the actual increase –