3 years ago

3x + 2 y = 8 5x + 2 y = 12 What is the solution of the system of equations shown above?

Mathematics

1 answer:

Arisa [49]3 years ago

5 0

Answer:

x = -3

Step-by-step explanation:

First solve it:

Subtract the x's from both sides

2y = -3x +8

2y = -5x +2

Divide by two

y= -1.5x + 4

y = -2.5x +1

set them equal to each other:

-1.5x +4 = -2.5x +1

Add 2.5 x to both sides

1x +4 = 1

x +4 = 1

subtract 4 from both sides

x = -3

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3 years ago

Entre Celia y Quique suman 14€. Si Celia tuviera 1 €, tendría el doble de dinero que Quique.¿ Cuanto dinero tiene cada uno?

denpristay [2]

Answer:

La cantidad de dinero

Celia tiene = x = 9.33 €

Quique tiene = y = 4.67 €

Step-by-step explanation:

Representemos la cantidad de dinero

Celia tiene = x

Quique tiene = y

Entre Celia y Quique suman 14 €.

x + y = 14

x = 14 - y

Si Celia tuviera 1 euro, tendría el doble de dinero que Quique.

Por lo tanto,

x = 2 años

Nosotros sustituimos

2y + y = 14

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La cantidad de dinero

Celia tiene = x = 9.33 €

Quique tiene = y = 4.67 €

7 0

3 years ago

Read 2 more answers

2 Points<br> What is the slope of the line shown below?<br> (2,2) 4,8

Vladimir79 [104]

Answer:

Step-by-step explanation:

Slope =y2−y1 divided to x2−x1

8−2

4−2

6/2

= 3

Hope this helped :)

Have a good one

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3 years ago

Read 2 more answers