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faltersainse [42]
2 years ago
6

Solve for x: 3.2x - 7.4 = -7.8x + 3.6 1. 1 2. 0.8 3 3.8 4. 0.5

Mathematics
1 answer:
Elan Coil [88]2 years ago
6 0

Answer:

The value of x is 1.

Step-by-step explanation:

You have to move all the x-terms to one side and the unrelated values to other side :

3.2x - 7.4 =  - 7.8x + 3.6

3.2x + 7.8x = 3.6 + 7.4

Next, you have to add up :

11x = 11

Lastly, you have to divide it by 11 :

x = 11 \div 11

x = 1

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Alexandra [31]
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2 years ago
25 points!!!
professor190 [17]

Answer:

x+y=12

Step-by-step explanation:

First, substitute 3y for the spots with x:

2(3y) + 2y = 24

6y+ 2y = 24

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Then sub in 3 in the y place:

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x= 9

Then plug in the x and y values in the equation:

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2 years ago
What’s the circumference of this shape?xx
VikaD [51]

The hypotenuse of the triangle would be the diameter of the semi circle.

Using the Pythagorean theorem you can find that.

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100 = x^2

x = √100

x = 10

The diameter is 10, now find the circumference.

Circumference = diameter x PI = 10 x 3.14 = 31.4

Since it is a semi circle, the circumference would be 1/2 of that.

31.4 / 2 = 15.7

The perimeter would be 8 + 6 + 15.7 = 29.7

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3 years ago
What interest rate is needed
KatRina [158]

Answer:

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