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Zina [86]
3 years ago
8

Is y=5x proportional

Mathematics
1 answer:
adelina 88 [10]3 years ago
4 0
Yes because it goes through the orgin on a graph and it does not say y=5x+b
You might be interested in
6X + 8Y - 4Z = 5
pochemuha

Responder:

la solución (x, y, z) es (4.48, 4.86, -1.04)

Explicación paso a paso:

Dadas las ecuaciones simultáneas;

6X + 8Y - 4Z = 5 .... 1

1X + 2Y + 5Z = 9 ... 2

9X - 3Y + 3Z = 6 .... 3

Primero necesitamos reducir el sistema de ecuaciones

Ecuación 1 * 1

Ecuación 2 * 4

__________

6X + 8Y - 4Z = 5

4X + 8Y + 20Z = 36

Restar

6x-4x - 4z-20z = 5-36

2x-24z = 31 ... 4

también

ecuación 2 * 3

ecuación 3 * 2

_______________

1X + 2Y + 5Z = 9 * 3

9X - 3Y + 3Z = 6 * 2

_______________

3x + 6y + 15z = 27

18x - 6 años + 6z = 12

Agregar

3x + 18x + 15z + 6z = 27 + 12

21x + 21z = 39 ...... 5

Resolviendo 4 y 5

2x-24z = 31 ... 4 * 21

21x + 21z = 39 ...... 5 * 2

____________

42x - 504z = 651

42x + 42z = 78

Sustraer

-504x - 42z = 651-78

-546z = 573

z = -573/546

z = -1.05

Sustituye z = -1.05 en 4

De 4;

2x-21z = 31

2x - 21 (-1,05) = 31

2x + 22,04 = 31

2x = 31-22.04

2x = 8,96

x = 8,96 / 2

x = 4,48

Obtener y

De 2:

X + 2Y + 5Z = 9

4.48 + 2y + 5 (-1.04) = 9

2 años + 4,48-5,2 = 9

2y = 9 + 0,72

2 años = 9,72

y = 9,72 / 2

y = 4,86

Por tanto, la solución (x, y, z) es (4.48, 4.86, -1.04)

6 0
3 years ago
I need this pls help pls
ollegr [7]

Answer:

Step-by-step explanation:

The figures are squares, so each side is the same length.

12.2 yd on each side

Area  = 12.2² = 148.84 yd²

perimeter = 4×12.2 = 48.8 yd

3 0
3 years ago
HELPPP PLZZZ!!!!!!!!!
Nady [450]
The answer should be “A” I’m pretty sure
4 0
3 years ago
Hi everyone,can someone help me find what -1+(-3)?​
Murrr4er [49]

Answer: -4 is the answer

Step-by-step explanation: google caculator

4 0
3 years ago
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Help!![tex]Janet is buying a $28 necklace. The store reduces the price by 20% and then applies a $2 off coupon. How much will sh
Nataliya [291]
$20.40

Hope this helps! ^_^
6 0
3 years ago
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