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Mathematics 9 Online
OpenStudy (matthew120):

The original price of a pair of jeans was $46.50. The jeans were on sale for $37.20. What was the discount rate?

OpenStudy (anonymous):

What do you think the answer is? How much has the price dropped by and what is that as a percentage of the original price?

rebeccaxhawaii (rebeccaxhawaii):

its rate is 46.50 divided by 37.20 move the decimal one to the right and thats your answer

OpenStudy (matthew120):

20%

rebeccaxhawaii (rebeccaxhawaii):

nope

OpenStudy (anonymous):

How much has the price dropped by?

rebeccaxhawaii (rebeccaxhawaii):

its 12.5 %

OpenStudy (anonymous):

Sorry @matthew120, you're correct it is 20%.

OpenStudy (pawanyadav):

Discount=(46.5-37.2)/47.5 ×100=20%

OpenStudy (anonymous):

@rebeccaxhawaii, just so you know where you went wrong: you have calculated the percentage increase of the discounted amount which isn't the same as the percentage decrease of the original amount. You also shouldn't have moved the decimal, it gives you 1.25 which is a 25% increase. You would have to divide 1 by your answer (1.25) to get the price change (80%), then subtract that from 1 to get the discount percentage (20%).

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