15-07-2017
Mathematics

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Create a linear equation to represent the monthly bill. When will the plans cost the same? Explain which plan is a better option.

Plan A $25.75 plus $.75 per min Plan B $20.99 plus 1.00 per min

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15-07-2017

x represents the number of minutes.
y represents the price of the bill.

Plan A
y = 25.75+0.75x

Plan B
y= 20.99+x

Plan A is better when it is more than 19 minutes.
Plan B is better when it is less than 19 minutes.

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