You are choosing between two long-distance telephone plans. Plan A has a monthly fee of $20.00 with a charge of $0.05 per minute for all long-distance calls. Plan B has a monthly fee of $10.00 with a charge of $0.10 per minute for all long-distance calls. Complete parts a and b.
a. For how many minute of long-distance calls will the costs for the two plans be the same ?
What will be the cost for each plan ?
b. If you make approximately 15 long-distance calls per month, each averaging 30 minutes, which plan should you select ?
Let us assume that the minutes be "x" per month
Thus, the equation for
Plan A = 0.05x + 20
Plan B = 0.10x + 10
a) Now , we have to calculate the minutes for which the two planes are equal-
0.05x + 20 = 0.10x + 10
=> 0.05x ...
The solution contains detailed step by step explanation to solve the given problem. Grab the post from the library and learn how you can find out which plan will work out better for you and when will the plans have same bills. Everything in the solution is explained in a manner which should be very easy to understand.