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miv72 [106K]
3 years ago
11

Me ayudan con esa ecuacion por sustitucion con la comprobacion pliss

Mathematics
1 answer:
attashe74 [19]3 years ago
8 0
<span>1/2x+3y/4=5 => (1/2)x + (3/4)y = 5

1/5x+3y/2=2  => (1/5)x + (3/2)y = 2

Eliminate the fractional coefficients:  Mult. the first equation by 4 and mult. the second equation by 10:


2x + 15y = 20     

</span><span>Multiply the 1st equation by -1:

-</span>2x - 3y = -20
2x + 15y = 20 
-------------------
       12y = 0, so y = 0.  Then the first equation becomes  2x + 3(0) = 20, or
                                     x=10.

Solution is (10,0).
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Hope this helps.
6 0
3 years ago
Find the value of x. <br> m27 = 2x + 18 and 2B
Reil [10]
<h2>45</h2><h2>___________________________________</h2>

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3 years ago
If the diameter is 21m what is the radius?<br><br> if the radius is 3.25mm what is diameter?
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Answer:

(a)

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(b)

radius=diameter/2

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I would appreciate if my answer is chosen as a brainliest answer

3 0
3 years ago
BRAINLY PLS HELP ME OUT ON THE 5,2 what the m value I beg you ASP
Snowcat [4.5K]

Answer:

hypotenuse = 5

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Value of m is 4.58

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3 years ago
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