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2 years ago

-3/2x-7/2=-1/2 how would this be solved

Mathematics

2 answers:

blondinia [14]2 years ago

5 0

Answer: x= -2

Explanation: -3/2x-7/2=-1/2

-3/2x= -1/2+7/2

-3/2x= 6/2

x=(6/2)÷(-3/2)

x=6/2*(2/-3)

x=6÷(-3)

x=-2

prohojiy [21]2 years ago

5 0

Answer:

x = -2

Step-by-step explanation:

Given :

-3/2x - 7/2 = -1/2

============================================================

Add 7/2 on each side :

⇒ -3/2x - 7/2 + 7/2 = -1/2 + 7/2

⇒ -3/2x = 6/2

⇒ -3x = 6

==========================================================

Divide by -3 on each side :

⇒ -3x/-3 = 6/-3

⇒ x = -2

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The length of the third side is a-2.

Given that:

Perimeter of triangle: 6a + 3

Length of first side: 2(a+3)

Length of second side: 3a -1

Let the length of the third side of the triangle be x.

Then as perimeter of a triangle is sum of lengths of all 3 sides of the triangle, thus we have:

Thus we have length of the third side as a -2.

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3 years ago

Two sides of a right triangle have lengths of 4 centimeters and 7 centimeters. The third side is NOT the hypotenuse. How long is

andrezito [222]

Answer:

The third side is 5.7 centimeters.

Step-by-step explanation:

The hypothenuse is the largest side of a right triangle. So in this question, we know that the hypothenuse is 7.

One of the sides is 4, and the other is x.

Applying Pythagoras' Theorem:

$x^{2} + 4^{2} = 7^{2}$

$x^{2} = 49 - 16$

$x^{2} = 33$

$x = \pm \sqrt{33}$

Since it is a length measure, we only take the positive value

$x = 5.7$

The third side is 5.7 centimeters.

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Zigmanuir [339]

The formula to solve:
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(10 being the percent)
$16*2= 32$
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