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Part C (3 points)Use your equation from Part B to determine the length of the subscription if the total cost of theupgrade is $434.75. Show ALL work and use algebra.

User Holgerwa
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1 Answer

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15 votes

We have an equation that relates the length of the subcription (x) and the cost of the upgrade (y):


y=14.99x+74.99

We know that y = 434.75, so we have to calculate the value of x that makes y = 434.75. we can do this as:


\begin{gathered} y=434.75 \\ 14.99x+74.99=434.75 \\ 14.99x=434.75-74.99 \\ 14.99x=359.76 \\ x=(359.76)/(14.99) \\ x=24 \end{gathered}

The length of the subscription for the cost of the upgrade to be $434.75 is 24 months.

Answer: 24 months.

User Kaspar
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