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Marshall grew 12 plants with 2 seed packets. How many seed packets does Marshall need to have a total of 18...

Marshall grew 12 plants with 2 seed packets. How many seed packets does Marshall need to have a total of 18 plants in his backyard? Assume the relationship is directly proportional.

Answer

Solution: Since the relationship is directly proportional, we can set up a proportion:

  1. 12 plants / 2 seed packets = 18 plants / x seed packets

Cross-multiply to solve for x:

12x = 36

x = 36 / 12

x = 3

Marshall needs 3 seed packets to have a total of 18 plants.

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