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2 years ago

12x - 2/3 = 83 1/3 12x=? x=?

Mathematics

1 answer:

Serjik [45]2 years ago

4 0

Answer:

12x = 84

x = 7

Step-by-step explanation:

12x = 83 1/3 + 2/3

12x = 84

x = 84/12

x = 7

Hope that helps!

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90. The number of daily evening newspapers in the United States has decreased by 46.5% to

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Step-by-step explanation:

Given:

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Percentage decrease from 2000 to 2015 = 46.5%

To find:

Number of newspapers in 2000 = ?

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2 years ago

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2 years ago

A triangle is graphed in the coordinate plane. The vertices of the triangle have coordinates (–3, 1), (1, 1), and (1, –2). What

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Answer:

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Step-by-step explanation:

Let

$A(-3,1),B(1,1),C(1,-2)$

we know that

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$P=AB+BC+AC$

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

step 1

Find the distance AB

$A(-3,1),B(1,1)$

substitute in the formula

$AB=\sqrt{(1-1)^{2}+(1+3)^{2}}$

$AB=\sqrt{(0)^{2}+(4)^{2}}$

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step 2

Find the distance BC

$B(1,1),C(1,-2)$

substitute in the formula

$BC=\sqrt{(-2-1)^{2}+(1-1)^{2}}$

$BC=\sqrt{(-3)^{2}+(0)^{2}}$

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step 3

Find the distance AC

$A(-3,1),C(1,-2)$

substitute in the formula

$AC=\sqrt{(-2-1)^{2}+(1+3)^{2}}$

$AC=\sqrt{(-3)^{2}+(4)^{2}}$

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step 4

Find the perimeter

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substitute the values

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