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N76 [4]
3 years ago
10

Which soulution to the equation 0.5x+4.2=5.9 Round to the nearest tenth of necessary.

Mathematics
2 answers:
Mice21 [21]3 years ago
4 0
The answer is x=3.4

Hope this helps!! ♡
Have a great day!







Gennadij [26K]3 years ago
3 0
For this you want to solve a 2-step equation

0.5x+4.2=5.9
subtract 4.2 from the left and right sides 
then divide on the left and right sides

x=3.4 (option B)
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20 points!<br> I need help (asap!!)
EastWind [94]

Answer:

<h2>x = 5</h2><h2>OB = 36</h2><h2>BE = 54</h2>

Step-by-step explanation:

We know that the medians of the triangle divides in a ratio of 2:1. Therefore we have the equation:

\dfrac{9x-9}{2x+8}=\dfrac{2}{1}                <em>cross multiply</em>

1(9x-9)=2(2x+8)             <em>use distributive property a(b + c) = ab + ac</em>

9x-9=(2)(2x)+(2)(8)

9x-9=4x+16                 <em>add 9 to both sides</em>

9x=4x+25                <em>subtract 4x from both sides</em>

5x=25             <em>divide both sides by 5</em>

\boxed{x=5}

OB=9x-9\to OB=9(5)-9=45-9=\boxed{36}

OE=OB:2\to OE=36:2=18\to BE=BO+OE\to BE=36+18=54


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