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3 years ago

Which relation is a direct variation that contains the ordered pair (2, 7)?

Mathematics

1 answer:

Burka [1]3 years ago

8 0

Answer:

Step-by-step explanation:

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Is (-2, 11) a solution to the following system of equations: y = 2x - 5, y = 4x - 3? Explain.

diamong [38]

Answer:no

Step-by-step explanation:

The answer is (-1,-7)

Y=4x-3

(4x-3)-2x=-5

2x=-2

X=-1

Y=4(-1)-3=

-7

(-1,-7)

6 0

2 years ago

Someone please help me with the answer. ASAP

labwork [276]

Answer:

Option D is correct

Step-by-step explanation:

-4(3x/2 - 1/2) = -15

<=>

-4*3x/2 + (-4)*(-1/2) = -15

<=>

-6x + 2 = -15

4 0

3 years ago

X/-5+13=20 what does x=

Liono4ka [1.6K]

Answer: x=-40

Step-by-step explanation: Solve for x by simplifying both sides of the equation then isolate the variable!

Hope this helps you out! ☺

3 0

4 years ago

How do you solve this

34kurt

You add 1.7 and 3.1 and that will be the answer to r which is 2.6

8 0

3 years ago

The perimeter of a quadrilateral (four-sided polygon) is 41 inches. The longest side is twice as long as the shortest side. The

zhenek [66]

Answer:

The length of all four sides of a quadrilateral are 7 inches, 14 inches, 10 inches, 10 inches

Step-by-step explanation:

Let the shortest side be $x$

As per given information longest side = $2x$

and other 2 sides are equal in length but 3 more times that shortest side = $3+x$

Perimeter of Quadrilateral = 41 inches given

But perimeter of quadrilateral = sum of all sides

$x+2x+x+3+x+3=41\\5x+6 =41\\5x= 41-6\\5x=35\\x = \frac{35}{5}=7$

Shortest side = $7\ in$

Longest side = $2x= 2\times 7= 14 \ in$

Other 2 sides = $3+x=3+7 = 10 \ in$

6 0

4 years ago