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Ray is buying some ginger roots to brew some fresh ginger ale. The price of the ginger roots is 
G, and Ray has a coupon for 
10% off.
The expression 
0.9 G represents the price Ray pays for the ginger roots after using the coupon.
What does 0.9 represent in this context?
Choose 1 answer:
(A) The amount of the discount from the coupon
(B) The percent, as a decimal, of the discount from the coupon
(c) The percent, as a decimal, of the original price that Ray pays
(D) The amount Ray pays after using the coupon

Ray is buying some ginger roots to brew some fresh ginger ale. The price of the ginger roots is G G , and Ray has a coupon for 10% 10 \% off.\newlineThe expression 0.9G 0.9 G represents the price Ray pays for the ginger roots after using the coupon.\newlineWhat does 00.99 represent in this context?\newlineChoose 11 answer:\newline(A) The amount of the discount from the coupon\newline(B) The percent, as a decimal, of the discount from the coupon\newline(C) The percent, as a decimal, of the original price that Ray pays\newline(D) The amount Ray pays after using the coupon

Full solution

Q. Ray is buying some ginger roots to brew some fresh ginger ale. The price of the ginger roots is G G , and Ray has a coupon for 10% 10 \% off.\newlineThe expression 0.9G 0.9 G represents the price Ray pays for the ginger roots after using the coupon.\newlineWhat does 00.99 represent in this context?\newlineChoose 11 answer:\newline(A) The amount of the discount from the coupon\newline(B) The percent, as a decimal, of the discount from the coupon\newline(C) The percent, as a decimal, of the original price that Ray pays\newline(D) The amount Ray pays after using the coupon
  1. Understand Problem Context: Understand the context of the problem.\newlineRay is buying ginger roots with a price of GG. He has a coupon that gives him 10%10\% off. The expression 0.9G0.9 G represents the price he pays after the discount.
  2. Determine Meaning of 0.90.9: Determine what 0.90.9 represents in the expression 0.9G0.9 G.\newlineSince the coupon gives a 10%10\% discount, this means Ray is paying 100%10%100\% - 10\% of the original price. In decimal form, 100%100\% is 11 and 10%10\% is 0.10.1. Therefore, Ray is paying 10.11 - 0.1, which equals 0.90.9 of the original price.
  3. Match Understanding with Answer Choices: Match the understanding of 0.90.9 with the given answer choices.\newline(A) The amount of the discount from the coupon - This is incorrect because 0.90.9 does not represent the discount amount; it represents the price after the discount.\newline(B) The percent, as a decimal, of the discount from the coupon - This is incorrect because 0.90.9 is not the discount percent; 0.10.1 is the discount percent.\newline(C) The percent, as a decimal, of the original price that Ray pays - This is correct because 0.90.9 represents 90%90\% of the original price, which is what Ray pays after the discount.\newline(D) The amount Ray pays after using the coupon - This is incorrect because 0.90.9 is not the amount but the percentage of the original price that Ray pays.

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