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# is this math answer ight ?

i got it yesterday but forgot how i did it.

i winged it and got 2.43

The price of a gallon of unleaded gas was $2.88 yesterday. Today, the price fell to $2.81. Find the percentage decrease. Round your answer to the nearest tenth of a percent.

### 3 Answers

- KrishnamurthyLv 72 months ago
The price of a gallon of unleaded gas was $2.88 yesterday.

Today, the price fell to $2.81.

Here's how I'd answer it:

2.88*x = 2.81 --> x = 0.9756944444444444

So there was a 1 - 0.976 = 0.024 = 2.4% decrease.

- MichaelLv 72 months ago
% = ($ original - $ new) / $ original * 100

% = (2.88 - 2.81) / 2.88 * 100

% = 2.4305555556

Percentage decrease = 2.4% <–––––– Rounded to the nearest tenth of a percent.

- Bone AloneLv 72 months ago
There’s a 7 cent discount so the original amount multiplied by the percent equals 7 cents.

X(2.88) = .07

X = .07/2.88 = .024 = 2.4%

It says to round to the nearest tenth of a percent so 2.4%.