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Luke was out at a restaurant for dinner when the bill came. To find the total plus tip, he multiplied the cost of the meal by 1.12. What percent tip did he leave? Answer: %

Luke was out at a restaurant for dinner when the bill came. To find the total plus tip, he multiplied the cost of the meal by 11.1212. What percent tip did he leave?\newlineAnswer: % \%

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Full solution

Q. Luke was out at a restaurant for dinner when the bill came. To find the total plus tip, he multiplied the cost of the meal by 11.1212. What percent tip did he leave?\newlineAnswer: % \%
  1. Calculate total cost: Luke multiplied the cost of the meal by 1.121.12 to find the total plus tip. This means that the total cost is 112%112\% of the original meal cost. The 100%100\% represents the original cost of the meal, and the additional 12%12\% represents the tip he left.
  2. Find percent tip: To find the percent tip Luke left, we subtract the original 100%100\% (representing the original cost of the meal) from the total 112%112\%.
    Percent tip =Total percent−Original percent= \text{Total percent} - \text{Original percent}
    Percent tip =112%−100%= 112\% - 100\%
    Percent tip =12%= 12\%

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