An airfare changed from $180 to $190.Which of these shows the expression of the percentage change?a. 1018010180 × 100%b. 1019010190 × 100%c. 180190180190 × 100%d. 190180190180 × 100%
Question
An airfare changed from 190.Which of these shows the expression of the percentage change?a. 1018010180 × 100%b. 1019010190 × 100%c. 180190180190 × 100%d. 190180190180 × 100%
Solution
The percentage change in a quantity is given by the formula:
Percentage change = (Final value - Initial value) / Initial value * 100%
Here, the initial value is 190.
So, the percentage change is (190 - 180) / 180 * 100%
This simplifies to 10 / 180 * 100%
So, none of the options a, b, c, d correctly represent the expression for the percentage change.
Similar Questions
(a) Rewrite the percentage in the sentence below as a decimal. Decimal:The photographer filled 80% of her memory card with animal pictures.(b) Rewrite the decimal in the sentence below as a percentage. Percent:%The value had decreased to 0.042 of the purchase price.
c) Find the percent change from 75 to 90
The price of an item has dropped to $153 today. Yesterday it was $180. Find the percentage decrease.
Calculate the percent increase or decrease:a) From 80 to 100b) From 120 to 90
A product's price decreased from $120 to $90. What is the percentage decrease in the price?
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.