5.
6a+b = 4
5a + 2b = 1

Answers

Answer 1

Answer:

The value of the unknown variables a and b in given equations are 1 and -2 respectively.

What is equation?

An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Given are two equations,

6a+b = 4......(i)

5a + 2b = 1.......(ii)

Solving them by using substitution method,

6a+b = 4

b = 4-6a......(iii)

Using equation (iii) in equation (ii)

5a + 2(4-6a) = 1

5a+8-12a = 1

-7a = -7

a = 1

Put a = 1 n eq(iii)

b = 4-6·1

b = 4-6

b = -2

Hence, The value of the unknown variables a and b in given equations are 1 and -2 respectively.

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Answer 2

Answer:

X = 1

Y = -2

Step-by-step explanation:

Use simultaneous equations to work out.

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Answer:

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1.A line is parallel to the line 5x+y+4=0 Work out it's gradient (The answer is a whole number or decimal.)2.Another line is parallel to the line 3x+5y=15 Work out it's gradient. (The answer is a fraction)

5 points for each answer

Answers

If we arrange the equation of a line in standard form,
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1).    5x + y + 4 =   0

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The slope (gradient) of the line is -5 .

2). Parallel lines have the same slope (gradient).
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Subtract 3x from each side: 5y = -3 x + 15

Divide each side by 5 : y = -3/5 x + 15

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Answers

I'm missing some information... but I'll answer the question regardless

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A.
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B.
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