SOLUTION: A person purchased 5k + 2 items for the cost of 35k^2 + 29k + 6. Find the average cost per item of this purchase.
_____?
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Question 201167: A person purchased 5k + 2 items for the cost of 35k^2 + 29k + 6. Find the average cost per item of this purchase.
_____?
Found 2 solutions by Earlsdon, RAY100:
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
You can find the average cost by dividing the total cost of the items () by the number of items purchased ().
First, factor the trinomial in the numerator.
Now cancel the common factors as shown.
Answer by RAY100(1637) (Show Source): You can put this solution on YOUR website!
Average is total cost / number
.
(35 k^2 +29k +6) / (5k+2)
.
[ ( 5k+2)(7k+3)] / ( 5k+2)
.
cancel like factors
.
7k +2,,,,,avg cost
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