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2 years ago

7

Explain direct variation equations please. Provide an example.

1 answer:

nikitadnepr [17]2 years ago

6 0

A direct variation is a linear equation. It describes a simple relationship between two variables.

Example: if y varies directly as x, and y = 6 when x = 2, the constant of variation is k = = 3.

Hope this helped!! :)

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HURRY! What is the value of x in the diagram? Please leave an explanation fr the answer

melomori [17]

X = -15 because first u move the ax’s to one side so it would be 3x-5x=25+5 then u calculate each side 3x-5x= -2x and 25+5=30 so -2x=30 and then u divide both sides by -2 and -2/-2 cancels out and 30/-2 equals -15 (I hope his helps) :))

6 0

2 years ago

48 is what percent of 160

professor190 [17]

Percent formula : is/of = %/100

is = 48
of = 160
% = x

48/160 = x/100
cross multiply
160x = 4800
x = 4800/160
x = 30......so 48 is 30% of 160

4 0

2 years ago

Bas_tet [7]

Answer:

5

Step-by-step explanation:

The initial value is when x=0

When x=0, y =5

The initial value is 5

3 0

2 years ago

Find the missing factor BBB that makes the equality true.

loris [4]

Answer:21y^4= B*7y^3

B=(21y^4)/(7y^3)

B=3y

i think this is correct

4 0

2 years ago

mr.lumen replaced a square window with a rectangular one.The new window is 3 ft wider and 2 ft higher than the square one.it has

stira [4]

Alright, lets get started.

Suppose the original square window has the side = x feet

The new window is 3 ft wider and 2 ft higher than the square one.

Means length of the new window will be = $(x+3)$

Width of the new window will be = $(x+2)$

So the area of the new window will be = $(x+3)(x+2)$

So the area of the new window will be = $x^2 + 2x + 3x + 6$

So the area of the new window will be = $x^2 + 5x + 6$

As given in question the area of 30 square feet for the new window, hence

$x^2 + 5x + 6 = 30$

$x^2 + 5x - 24 = 0$

Factoring

$(x+8)(x-3) = 0$

x = -8 or x = 3

Side could not be negative hence

side of the original square window will be = 3 feet : Answer

Hope it will help :)

6 0

3 years ago

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