The amount of money in Toni's savings account after x weeks is described by the function f(x) = 5x + 20. Which best interprets t
1 answer:
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Answer:
Step-by-step explanation:
The formula is
<em>We need to solve for , so we can perform the steps shown below:</em>
Hence, the third answer choice is correct.
300 messages would have to be sent or received in order for the plan to cost same each month.
Step-by-step explanation:
Given,
Cost per month = $30
Per text sent or received charges = $0.10
Let,
x be the number of texts sent or received.
A(x) = 0.10x+30
A comparable plan costs = $60 per month
Text messages are unlimited.
B(x) = 60
For the two plans to cost equal;
A(x) = B(x)
Dividing both sides by 0.10
300 messages would have to be sent or received in order for the plan to cost same each month.
Keywords: function, addition
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