The price of a gallon of unleaded gas has risen to $2.85 today. Yesterday's price was $2.80 . Find the percentage increase. Round your answer to the nearest tenth of a percent.

Question

The price of a gallon of unleaded gas has risen to   $2.85 today. Yesterday's price was $2.80  . Find the percentage increase. Round your answer to the nearest tenth of a percent.

mertsj · Answer

Subtract and find out how much it increased.  How much did it?

anonymous · Answer

5 cents

mertsj · Answer

Or, since everything is in dollars, .05

mertsj · Answer

Now divide that by the original price.

doc.brown · Answer

$$\frac{0.05}{2.80}=\frac{x}{100}$$

mertsj · Answer

Then multiply that answer by 100 to change it to percent.

anonymous · Answer

Yeaah I already did that before i asked the question and I got some crazy answer.

anonymous · Answer

it was like 1.7857142857142954%

mertsj · Answer

But the directions say to round to the nearest tenth.

doc.brown · Answer

Correct!

anonymous · Answer

so 1.8%?

mertsj · Answer

yep

doc.brown · Answer

Yup

anonymous · Answer

I didn't thoroughly read the question :p SORRY but you were truly a help... medal coming your way

mertsj · Answer

ty

doc.brown · Answer

Imagine you have 280 pennies, and you split it up into 100 piles, that's like 2.8 pennies per pile. How many piles do you need for 5 cents?

anonymous · Answer

Do you really need the answer or are you just trying to make me work?

doc.brown · Answer

Just a way to think about percent, chopping up what you have into 100 even piles.  you know the answer is 1.8
I was hoping imagining the piles would let you see it's a little less than 2 pile.

anonymous · Answer

ohh I see what you were doing