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OLEGan [10]
3 years ago
7

4(x−0.8)=3.8x−5.8 PLZZZ ANSWER FAST!

Mathematics
2 answers:
Hunter-Best [27]3 years ago
5 0
To find the answer:
4(x - 0.8) = 3.8x - 5.8 \\ 4x - 3.2 = 3.8x - 5.8 \\ 4x - 3.8x =  - 5.8 + 3.2 \\ 0.2x =  - 2.6 \\ x =   - \frac{ 2.6}{0.2}  \\ x =  - 13

Therefore, x=-13.

Hope it helps!
Lapatulllka [165]3 years ago
3 0

Answer:  The required solution is x = -13.

Step-by-step explanation: We are given to solve the following linear equation in variable x :

4(x-0.8)=3.8x-5.8~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

Solving equation (i) means finding the value of the unknown variable x.

The solution of equation (i) is as follows :

4(x-0.8)=3.8x-5.8\\\\\Rightarrow 4x-3.2=3.8x-5.8\\\\\Rightarrow 4x-3.8x=3.2-5.8\\\\\Rightarrow 0.2x=-2.6\\\\\Rightarrow x=-\dfrac{2.6}{0.2}\\\\\Rightarrow x=-13.

Thus, the required solution is x = -13.

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7 0
3 years ago
If a triangle has side lengths 5 cm, 18<br> cm, and 12 cm, is it a right triangle?
Dimas [21]

Answer:

No, it's not a right triangle.

Step-by-step explanation:

1. The Pythagorean Theorem states that the area of the square whose side is the hypotenuse (longest side of a right triangle) is equal to the sum of the area of the squares from the two other sides.

2. The longest side in this "triangle" has 18 centimeters, and the other 2 sides are 5 and 12 centimeters.

3. Let's apply the Pythagorean Theorem to see if 5^2 + 12^2 = 18^2

  • 5^2 + 12^2 = 18^2
  • 25 + 144 = 324
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4. Okay, so the sum of the area of the squares from the two other sides is not equal to the hypotenuse squared, therefore, it's not a right triangle.

(Plus, it's not even a triangle because 7 < x < 17, and the third "side", 18, is not between 7 and 17.)

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3 years ago
If I can run 5 miles per hour, how far is this in feet per hour?
stiv31 [10]

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Step-by-step explanation:

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4 0
3 years ago
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Ivanshal [37]

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The exact number would be 26.66666667 but it would be 26.

Step-by-step explanation:

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