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last year the origional prices of emmas and sophies phones were $560 and $640. Now the prices reduced in ratios 7:6 and 4:3 respectively. what is the difference of the current prices

2 Answers

3 votes

Answer: 80 and 160 dollars

Step-by-step explanation: Ok so Emma's phone was 560 but now has decreased ratio 7: 6 so we divide 560/7 it equals to 80 so it decreased by 80 so the ratio would be 560 : 480 the difference is 80 dollars for Emmas and for sophies the price was 640 for 4 so we divide it by 4 to get 160 and 160 x 3 to get the current price of 480 the ratio would be 640 : 480 and the difference for sophie's phone is 160

User Rakesh Gondaliya
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3.9k points
4 votes

Answer: Emma's phone is now worth 480 $, which is a 160 $ decrease.

Sophie's phone is now worth 480 $, which is a 160 $ decrease.

Explanation:

Emma's original phone cost: 560 $

Sophie's original phone cost: 640 $

560 to 7:6

560/1 = 7/6

Cross multiply. We get 7 = 560 x 6

Divide by 7 on both sides

Emma's phone is now worth 480 $, which is a 160 $ decrease.

640 to 4:3

640/1 = 4/3

Cross multiply. We get 4 =640 x 3

Divide by 4 on both sides

Sophie's phone is now worth 480 $, which is a 160 $ decrease.

There is no difference in the new price of both the phones, but a larger decrease in Sophie's original phone cost.

User Josef Vancura
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4.0k points