There is a phone with the price of $599.99 there was a 50% sale off the original price I used a coupon for 15% off any item, the sales tax rate was 7.5%

Question

What is the total bill, can you answer me with the four step proportion method ?    and THANKS

Answer 1

I'm not sure what you mean by 4 step proportion method or how you would use it, but I believe this method will help you to understand how to find the total bill in several steps.

 

Percent off means that you take the percent of the original price, and then subtract that value from the original price.  A coupon works the same way.  If there is a tax rate, you perform the same operation.  The only difference is that you add it to the resulting price.

 

First step:  Find 50% off the original price

 

599.99 - 599.99(0.50) = 300

 

The price after the discount is $300.

 

 

Second Step:  Use that 15% coupon to save your money.  Take the price from the last step.

 

300 - 300(0.15) = 255

 

The price after using the coupon is $255

 

 

Third Step:  We have to add a sales tax rate.  Take the price obtained from the second step.

 

255 + 255(0.075) = 274.13

 

After adding tax rate to your discounts, the price is $274.13

 

 

No additional steps are needed since we covered every factor that affects the bill.

 

 

The total bill is $274.13