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April 21, 2014

April 21, 2014

Posted by **Cayla** on Thursday, February 2, 2012 at 12:40pm.

Assuming this relationship is linear, write an equation that relates cost to the number of watches you make

- math -
**Steve**, Thursday, February 2, 2012 at 3:26pmLet p be the price, and N be the sales

If there's a linear relationship,

N = mp + b

Now plug in what you know:

80 = 5m + b

60 = 8m + b

20 = -3m

m = -20/3

b = 340/3

so,

3N = -20p + 340

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