When a number is halved and 5 is added, the result ie 8 more than the original number. Find the number
1 answer:
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Answer:
Step-by-step explanation:
We are given that Ben has a cell phone plan that provides 200 free minutes each month for a flat rate of $39.
We are also told that For any minutes over 200, Ben is charged $0.35 per minute.
let x be the minutes used each month
So, if
So, coat will be $39
If
So, Ben is charged $0.35 per minute
So, when
So, charge =
So, the piecewise functions accurately represents charges based on Ben's cell phone :
Answer:
-3 times the square root of 5
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Explanation:
Let
Replace all the root 5 terms with x and we go from
to
From here, combine like terms to get
and the last thing to do is replace the x with sqrt(5)
Meaning that,
