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3 years ago

You order 3 posters advertised on the Internet. Each poster costs

Mathematics

1 answer:

Angelina_Jolie [31]3 years ago

8 0

Answer:

$8.67

Step-by-step explanation:

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$slope = \frac{ - 2 - 3}{6 - 7} \\$

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$slope = 5$

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3 years ago

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allsm [11]

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Step-by-step explanation:

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Please respond to the question below in your own words with proper explanations

ycow [4]

Answer:

$t(400)=673$ .

It means that 673 of 9 inch tiles are required to cover an area of 400 square feet, when spacing the tiles a quarter inch apart.

Step-by-step explanation:

Given:

The function relating number of 9 inch tiles required and area to cover is:

$t(A)=\frac{144}{9.25^2}A$

Now, plug in 400 for $A$ to evaluate $t(400)$ .

$t(400)=\frac{144}{9.25^2}\times 400=\frac{144\times 400}{85.5625}=\frac{57600}{85.5625}=673.19\approx6225$

Therefore, Don required 673 of 9 inch tiles to cover an area of 400 square feet, when spacing the tiles a quarter inch apart.

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