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3 years ago

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Tim has a large collection of books. The number of paperback books he owns is three less then four times the number of hardcover

books. In total, Tim has 447 books. How many hardcover books does he own?

1 answer:

dlinn [17]3 years ago

3 0

Answer: let the no of paperback books be x and hardcover books be y

4y - x = 3

Therefore, x - 4y = -3 -----(1)

x + y = 447 ----(2)

Put x = 447 - y in eqn 1

447- y - 4y = -3

-5y = -3 - 447

-5y = -450

y = 90

x = 357

Step-by-step explanation:

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So we have the equation:

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Thus, let's go through each of the choices.

A)

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B)

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C)

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D)

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Step-by-step explanation:

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3 years ago

Read 2 more answers

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Answer:

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Step-by-step explanation:

Given

$x \to -1,0,1$

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Solving (a): Compare the slopes

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$m =\frac{y_2 - y_1}{x_2 - x_1}$

So, for f(x), we have:

$m =\frac{-1- 0}{-5- -1}$

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For g(x), we have:

Assume $g(x) = mx + c$ then the slope is m

Compare the above to $g(x) = 4x + 3$

Then the slope of g(x) is 4

g(x) has a greater slope

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Here we set $x= 0$

From the table of f(x)

$f(x) = -1$ when $x = 0$

From $g(x) = 4x + 3$

$g(0) = 4 * 0 + 3$

$g(0) = 3$

Hence:

g(x) has a greater y intercept

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Answer:

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