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Nimfa-mama [501]
3 years ago
14

The teachers’ edition of a statistics textbook sells for $150, and students’ edition of the book sell for $50 each. which functi

on can be used to find the average cost per book if two teachers’ editions and x students’ editions are purchased?
a. f(x)= 150 50x over 1 x
b. f(x)= 150 50x over 2 x
c. f(x)= 300 50x over 1 x
d. f(x)= 300 50x over 2 x
Mathematics
2 answers:
natima [27]3 years ago
4 0
Its d) f(x)= 300+50x/2+x..............................................................................
Juliette [100K]3 years ago
4 0

Answer:

d

Step-by-step explanation:

Lets have a look at what is given:

Teachers edition of statistics textbook sells for $150

Students edition of statistics textbook sells for $50.

Two teachers and x student books are purchased.

Let f(x) = the average cost per book

Therefore the amount of the teachers textbook cost 2*$150 = $300

and the students texbook costs x*$50= $50x

The average cost per book is:

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

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<h3>Solution(s):</h3>

<u>1)</u><u> What distance did a car travel that went 70 mph for 6 hours?</u>

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<u>2)</u><u> What is the perimeter of a rectangle with a length of 7 cm and a width of 4 cm?</u>

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