Asked by Joshua

Dylan has 765 cards in his baseball card collection. He sells 153 of the cards. What is the percent of decrease in the number of cards in the collection?

Answered by Ms. Sue
Joshua/Jesse/Abraham -- we showed you how to do two of this type of problem. Now it's your turn.

How do you think you should solve it? What is your answer?

Please use the same name for your posts.
Answered by Joshua
Using proportions and subtracting 765 and 153 you get 612 and divide that by 153 and get 4 and multiply it by 100
Answered by Ms. Sue
612/765 = 0.8 = 80%

100 - 80 = 20% decrease

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