Option 1: Purchase a new phone for $300. Your cell phone bill will be $80 per month. Option 2: Make monthly payments of $25 for your phone. Your cell phone bill will be $70 per month (plus the $25 for the phone). How many months same overall cost?
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Option 1: Purchase a new phone for 80 per month.
Option 2: Make monthly payments of 70 per month (plus the $25 for the phone).
To find out which option has the same overall cost, we need to calculate the total cost for each option over a certain number of months and then compare.
For option 1: Total cost = 80 per month Total cost = 80x, where x is the number of months
For option 2: Total cost = 70 per month (cell phone bill) Total cost = 70x, where x is the number of months
We set these two equations equal to each other and solve for x: 80x = 70x
Subtract 300 + 25
Subtract 10x = -$275
Divide both sides by 275 / $10 x = -27.5
Since the number of months cannot be negative, there's no real solution for x. This means that there is no number of months where the overall cost of the two options is the same. Therefore, there's no point where both options have the same overall cost.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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