SOLUTION: A jewelry store called clear ice buys 1 carat diamond earrings for $800 a pair. The earrings are marked up 70% to be sold at the store based on the cost. Clear ice had a New Year�

Question 1162992: A jewelry store called clear ice buys 1 carat diamond earrings for $800 a pair. The earrings are marked up 70% to be sold at the store based on the cost. Clear ice had a New Year’s Sale and marked down the earrings by 15% on January 1st. After the sale on January 10th the earrings were marked up 10%. On February 1st the earrings were marked down 20%. What is the selling price? What was the selling price on January 1st? What was the selling price on January 10th?
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!

To calculate, for example, a new price after a price increase of 65%, multiply the original price by 1.65 (100%+65% = 165% = 1.65).

To calculate, for example, a new price after a price reduction of 32%, multiply the original price by 0.68 (100%-32% = 68% = 0.68).

In this problem....

(1) original cost to the store: 800
(2) original price (70% over cost): multiply (1) by 1.70
(3) price on January 1 (sale 15% off): multiply (2) by 0.85
(4) price on January 10 (increase 10%): multiply (3) by 1.10

You can do the calculations....

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