laurieburgess804
02.12.2019 •
Mathematics
Alot points so ! the fare on a railroad is 40 cents for every mile of travel, plus an additional $15. write an expression for the cost, in dollars, of a trip of n miles. tell me the correct answer and how you got it step by whoever does this will get the ! no fake
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Ответ:
f(n) means the function as it applies to n miles
$15 is your base fare
40 cents becomes $.40
You pay $.40 per mile so that is $.40n
And it is $15 plus the $.40 per mile so you have $15+$.40n
When you put that all together it is:
f(n)=$15+$.40n
Hope that helps. Feel free to ask any questions.
Ответ:
A. Divide both sides by 6 and then add 2. The solution is x=8