Question

Sarah is purchasing pencils to share. Each package has 12 pencils. The equation n = 12p, where n is the total number of pencils and p is the number of packages, can be used to determine the total number of pencils Sarah purchased. Determine which variable is dependent and which is independent. Then, make a table showing the number of pencils purchased for 3–7 packages.

Answer 1

Answer and Step-by-step explanation:

Each package has 12 pencils

total number of pencils Sarah purchased: n = 12p

n = total number of pencils

p = number of packages

n depends on p, because the total number of pencils dependos on how many packages she will buy, so:

independent variable: p

dependent variable: n

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║ p     ║ n = 12p            ║ n  ║

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║ 3     ║ n = 12*3           ║ 36     ║

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║ 4     ║ n = 12*4           ║ 48     ║

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║ 5     ║ n = 12*5           ║ 60     ║

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║ 6     ║ n = 12*6           ║ 72     ║

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║ 7     ║ n = 12*7           ║ 84     ║

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