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olasank [31]
2 years ago
15

The cost of 7 books was $154.40. How much does each book cost?

Mathematics
2 answers:
GenaCL600 [577]2 years ago
4 0

Answer:

Each book costs about $22.06

Step-by-step explanation:

[] We can set up a proportion, and then use cross-multiplying to solve:

\frac{7books}{154.40dollars} =\frac{1book}{x}

7x = $154.4

x = 22.05714

x ≈ $22.06

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

Simora [160]2 years ago
3 0

Answer:

22.057

Round to 22

154.4/7 = 22.057

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1) SHOW WORK: Evaluate f(-2):
babymother [125]

Answer:

- 10 and 60

Step-by-step explanation:

1

To evaluate f(- 2) substitute x = - 2 into f(x)

f(- 2) = (3 × - 2) - 4 = - 6 - 4 = - 10

2

To evaluate f(8) substitute x = 8 into f(x)

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3 years ago
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a container built in the shape of a cylinder has a circular base with a radius of 1.5 meters. the altitude of the container is 3
HACTEHA [7]

Answer:

im assuming you need the volume of this container:

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<span>_____-9x² - 27x ____ | </span>
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Multiply............
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Hey there!

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–5x × 4x² = –20x³
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Write all of these terms together. You can rearrange the similar ones to be next to each other. 

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Just add or subtract the terms to simplify, if they can be.

8x⁴ – 44x³ + 80x² – 50x

(8x⁴ – 44x³ + 80x² – 50x) will be your final answer. 

Hope this helped you out! :-)
8 0
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