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Ivanshal [37]
3 years ago
14

Need help please someone

Mathematics
1 answer:
Setler [38]3 years ago
8 0

Please look at the picture. If you can't see it, I'll write it out for you.

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Me ayudan con esa ecuacion por sustitucion con la comprobacion pliss
attashe74 [19]
<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).
8 0
3 years ago
Can someone please help??
mel-nik [20]

Answer:

Step-by-step explanation:

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4 0
2 years ago
(8x-4)+(17x-23)+(3x+17)=180
12345 [234]

Answer:

b

Step-by-step explanation:

b

7 0
3 years ago
The length of a rectangle is 3 meters more then the width the perimeter of ractangle is 26 meters
Fudgin [204]

Answer:

Step-by-step explanation:

Let's say the width is x. If the length is 3 meters more than the width, the the length is x+3.

A rectangle has 4 sides. 2 widths and 2 lengths. If the perimeter is 26 meters, you can plug in your expressions for the width and the length to solve for x.

2(x+3) +2(x)=26

2x+6+2x=26

4x+6=26

4x=20

x=5.

If x=5, that means that your with is 5 meters, and your length is 8 meters (5+3)

5 0
3 years ago
What's the vertex and is it a max or min
MrRa [10]
A vertex can be the max or min. The vertex is the highest point or lowest point of a function.
5 0
3 years ago
Read 2 more answers
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