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damaskus [11]
3 years ago
5

What is the solution to the system of equations

Mathematics
1 answer:
vitfil [10]3 years ago
5 0

Answer:

Step-by-step explanation:

Hello

I believe there is an error in the question

we have two equations and need to find x and y

(1) \dfrac{1}{4}x+\dfrac{1}{2}y=\dfrac{5}{8}\\(2) \dfrac{3}{4}x-\dfrac{1}{2}y=3\dfrac{3}{8}

let s multiply by 8 so that we can get rid of the fractions

(1) becomes 2x+4y=5

(2) becomse 6x-4y=9

if we sum it gives

2x+4y+6x-4y=9+5

8x=14

x = 14/8 = 7/4

and then from the first equation

4y = 5 - 7/4

<=> 16y = 20-7 = 13

y = 13/16

the solutions is (7/4,13/16)

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Name:
Effectus [21]

Answer:

8421  

Step-by-step explanation:

8050 < abcd < 8500

We must have a = 8, so the number is 8bcd.

The value of a is 20 times the value of b, or a= 2b.

a = 8, so b = 4.

The value of b is 20 times the value of c, or b = 2c.

b = 4, so c = 2.

The value of c is 20 times the value of d, or c = 2d.

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The secret number is 8421.

8 0
3 years ago
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Lena [83]
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3 years ago
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Answer:

No solutions

Step-by-step explanation:

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4 years ago
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3 0
3 years ago
Read 2 more answers
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Ilya [14]

Answer:

combination

Step-by-step explanation:

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