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Which plan is less costly if a person uses 750 minutes per month, explain.
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Answer to Problem 38IP
Plan B, it has total cost of $49.99 and plan A has a total cosst of $75.
Explanation of Solution
Given:
A cell phone company offers two different monthly plans. Plan A costs a flat rate of $0.10 per minute for all cells. Plan B costs $29.99 for the first 500 minutes and $0.08 for each additional minute.
In order to find which plan is less costly if a person uses 750 minutes per month, explain, first plan A has a flat rate of $0.10 per minute so the cost of 750 minutes is obtained by multiplying 0.10 to 750 as shown below:
Plan B costs $29.99 for the first 500 minutes and $0.80 per minute for each additional minute so for 750 minutes, the cost is $29.99 for the first 500 minutes and $0.08 per minute for additional first subtract 500 from 750 then multiply it by 0.08 , and then add $29.99 as shown below:
Therefore plan B is less costly if a person uses 750 minutes per month.
Chapter 1 Solutions
Glencoe Math Accelerated, Student Edition
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