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2 years ago

Which graph best represents the equation 3x + 4y = 12?

Mathematics

1 answer:

Olegator [25]2 years ago

7 0

Answer:

Thats a linear function. The graph should be from point (0,-3) to point (4,0)

Step-by-step explanation:

Step-by-step explanation:

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Solve the system y= 4x + 1 and 3x+2y =13

Irina18 [472]

Given :

${\qquad \sf \dashrightarrow y= 4x + 1 \: –––– \sf \: (i)}$

${\qquad \sf \dashrightarrow 3x + 2y = 13 \: –––– \sf \: (ii)}$

Now, Substituing the value of y in equation (ii) :

${\qquad \sf \dashrightarrow \: 3x + 2y = 13 }$

${\qquad \sf \dashrightarrow \: 3x + 2(4x + 1) = 13 }$

${\qquad \sf \dashrightarrow \: 3x + 8x + 2 = 13 }$

${\qquad \sf \dashrightarrow \: 11x + 2 = 13 }$

${\qquad \sf \dashrightarrow \: 11x = 13 - 2 }$

${\qquad \sf \dashrightarrow \: 11x = 11 }$

${\qquad \sf \dashrightarrow \: x = \dfrac{11}{11} }$

${\qquad \sf \dashrightarrow \bf \: x = 1 }$

Now, substituting the value of x in equation (i) :

${\qquad \sf \dashrightarrow y= 4x + 1}$

${\qquad \sf \dashrightarrow y= 4(1) + 1}$

${\qquad \sf \dashrightarrow y= 4 + 1}$

${\qquad \bf \dashrightarrow y= 5}$

3 0

2 years ago

The number 0.4 can be written as 4/10, so it is a rational number?

riadik2000 [5.3K]

Hello,

Yes of course 0.4 or 4/10 is a rational number :)

Have a nice day :)

5 0

3 years ago

Read 2 more answers

2 (b - 4) > -6 I NEED HELP ASAPPPPPPP

Alenkinab [10]

ANSWER

b>1

EXPLANATION

The given inequality is;

2 (b - 4) > -6

Expand the parenthesis to get,

2b-8>-6

2b>-6+8

Simplify the right hand side.

2b>2

Divide both sides by:

b>1

5 0

3 years ago

6n- 15 = 6(5)? – 15<br> =

kozerog [31]

Answer:

what

Step-by-step explanation:

8 0

2 years ago

Help I will give all the good stuff to you if you help me!

Law Incorporation [45]

Answer:

I think it is triangle, pentagon, heptagon, decagon

5 0

3 years ago