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18 May, 00:45

The ski club is planning a trip for winter break. They write the equation C=200+10N to estimate the cost in dollars, C of the trip for N students.

Duncan and Corey both use the equation to estimate the cost for 50 students. Duncan says the cost is $10,500, and Corey says it's $700.

A) Whose estimate is correct?

B) How do you think Duncan and Corey found such different estimates if they used the same equation?

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  1. 18 May, 01:47
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    A)

    C = 200+10N

    10 X 50=500

    C=200+500=700

    Corey

    B)

    Duncan may have rounded up for both, giving hims higher estimate.
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