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2 years ago

The value of y is directly proportional to the value of x. Given y = 12 when x = 36.

Mathematics

1 answer:

Ahat [919]2 years ago

5 0

Answer:

y = 20

Step-by-step explanation:

The problem states that y = 12 when x = 36. 36/12 is 3. This means that y is a third of what x is. This would mean that if x = 60, y would be a third of 60 which is 20 since 60/3 is 20.

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spayn [35]

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Step-by-step explanation:

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3 years ago

-x + 2y = 3 2x – 3y = -6

s2008m [1.1K]

Answer:

x = -3

y = 0

Step-by-step explanation:

Given equations :- 

-x + 2y = 3 ....... ( i )

2x - 3y = -6 ....... ( ii )

From ( i ) 

-x + 2y = 3

-x = 3 - 2y

x = 2y - 3 ........ ( iii )

From ( ii ) 

2x - 3y = -6

2x = -6 + 3y

$x = \frac{ - 6 + 3y}{2}$

........ ( iv )

Equating ( iii ) and ( iv )

x = x

$2y - 3 = \frac{ - 6 + 3y}{2}$

4y - 6 = -6 + 3y

4y - 3y = -6 + 6

y = 0

Putting value of y in ( iii )

x = 2y - 3

x = 2 ( 0 ) - 3

x = -3

4 0

2 years ago

I need help does anyone know?

Rzqust [24]

Answer:1 4/5

Step-by-step explanation:

7 0

2 years ago

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Find all the zeros of the polynomial 2x4 - 9x3 + 5x2 + 3x -1, if two of its zeros are ( 2 +√ ) and (2 - √ ) .

elena-s [515]

Answer:

$x=-\frac{1}{2} , 1, (2+\sqrt{3} ), (2-\sqrt{3} )$

Hope this helps!

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2 years ago

What is the Area of the circle in pi units if the diameter is 6 cm?

sergejj [24]

The area of the circle in pi units when the diameter of this circle is 6 centimeters is 9π centimeters.

<h3>What is the area of the circle?</h3>

The area of the circle is the space occupied by it. It is the product of pi and square of its diameter divided by 4. The area of the circle can be given as,

$A=\pi\dfrac{d^2}{4}$