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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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Answer:

37 ft

Step-by-step explanation:

The ladder forms a right triangle as it elan's against the wall of the boat house.

Thus, the length of the ladder can be determined using Pythagorean theorem.

c² = a² + b²

c = length of ladder

a = 35 ft

b = 12 ft

Plug in the values

c² = 35² + 12²

c² = 1,225 + 144

c² = 1,369

c = √1,369

c = 37

Therefore, to reach the roof of the boathouse, the length of the ladder = 37 ft

4 0
3 years ago
Round to the nearest tenth (TIMED PLEASE help!!!)
vredina [299]

Answer:

A = 180 - (90 + 72) \\  A= 18° \\  \\ from \: pythogoras \\ a = 3.4 \\ b = 10.5

4 0
3 years ago
3/4 over 3 1/4 simplified is?
Sergio039 [100]

Answer:

Convert  

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A mixed number is an addition of its whole and fractional parts.

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Add  

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To write  

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Combine  

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4

4

.

3

⋅

4

4

+

1

4

−

1

3

4

Combine the numerators over the common denominator.

3

⋅

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Simplify the numerator.  

Multiply  

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12

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−

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13

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−

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Convert  

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A mixed number is an addition of its whole and fractional parts.

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13

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−

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−

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Subtract  

7

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6

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Cancel the common factor of  

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Factor  

2

out of  

6

.

2

(

3

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4

Cancel the common factors.

Factor  

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4

.

2

⋅

3

2

⋅

2

Cancel the common factor.

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2

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Rewrite the expression.

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The result can be shown in multiple forms.

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6 0
3 years ago
An angle measures 114° more than the measure of its supplementary angle. What is the measure of each angle
sertanlavr [38]

Answer:

33º and 147º

Step-by-step explanation:

x + (x + 114) = 180

2x + 114 = 180

2x = 66

x = 33º

x + 114 = 147º

8 0
3 years ago
Read 2 more answers
Find the length of BC
prohojiy [21]

Answer:

<h3>The answer is option A</h3>

Step-by-step explanation:

To find the length of BC we use tan

tan ∅ = opposite / adjacent

From the question

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So we have

tan 61 = AC / BC

tan 61 = 47/BC

BC = 47/tan 61

<h3>BC = 26.05</h3>

Hope this helps you

3 0
4 years ago
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