3 years ago

Can some one please please help me?

1 answer:

mina [271]3 years ago

3 0

5/7x + 1/7 = 63

7(5/7x) + 7(1/7) = 7(63)
5/x + 1 = 441
5/x = 440
5 = 440x
5/440 = x
1/88 = x

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DiKsa [7]

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Naddika [18.5K]

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s344n2d4d5 [400]

Answer:

a and b.

Step-by-step explanation:

I’ll explain by giving an example.

Let’s say that: a=3;b=4;c=5; => they all are consecutive -> their sum is 12.

=> if we use a) n=3 => 3*n+3=3*3+3=12 => correct.

b) n+(n+1)+(n+2)= 3+4+5=12=> correct.

c)n+2n+3n=3+6+9=18=>incorrect.

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Goshia [24]

Answer:

<h2>the slope m = 3</h2>

Step-by-step explanation:

Look at the picture.

The formula of a slope:

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

From the graph we have the points (0, 4) and (-2, -2). Substitute:

$m=\dfrac{-2-4}{-2-0}=\dfrac{-6}{-2}=3$

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3 years ago