The price of a gallon of unleaded gas has dropped to $2.80 today. Yesterday's price was $2.87 . Find the percentage decrease. Round your answer to the nearest tenth of a percent.
WHY DOES MATH SO HARD!!!
what is the answer
To find the percentage decrease, we need to calculate the difference between the old price and the new price, and then divide that difference by the old price. Finally, we multiply the result by 100 to get the percentage.
Step 1: Calculate the difference between the old price and the new price:
$2.87 - $2.80 = $0.07
Step 2: Divide the difference by the old price:
$0.07 / $2.87 = 0.0243
Step 3: Multiply the result by 100 to get the percentage:
0.0243 * 100 = 2.43
So the price of unleaded gas has decreased by approximately 2.4%.
0.07/2.87 = 0.02439 = 2.4%
2.87 - 2.8 = 0.07
0.07/2.87 = 0.02439 = 2.4%