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kvv77 [185]
3 years ago
12

The teachers’ editions of a statistics textbook sell for $150 each, and students’ editions of the book sell for $50 each. Which

function can be used to find the average cost per book if two teachers’ editions and x students’ editions are purchased?
Mathematics
2 answers:
Novay_Z [31]3 years ago
7 0

Answer:

(300 + 50x)/(2 + x)

Step-by-step explanation:

Let the cost of teachers' edition books be t

Let the cost of students' edition books be s

So t = 150; s = 50

Then the total cost of 2 teachers' editions and x students' editions is 2t + sx = 2 × 150 + 50x = 300 + 50x.

The total number of books is 2 + x.

So the average cost per book is (300 + 50x)/(2 + x)

ycow [4]3 years ago
7 0

Answer:

the answer is D.

Step-by-step explanation:

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