1 year ago

Please help 2y+x=-15 y=2x

Mathematics

1 answer:

Eva8 [605]1 year ago

5 0

Answer: x = -3

Step-by-step explanation:

2y + x = -15

y = 2x

2y = 2(2x) = 4x

4x + x = -15

5x = -15

x = -3

You might be interested in

7/4x^2 -2 = - 0.05x + 4

nata0808 [166]

Answer:

$x1=\frac{-2-2\sqrt{29401} }{245} x2=\frac{-2+2\sqrt{29401} }{245}$

Step-by-step explanation:

Step One: Convert

49/16x^2-2=-0.05x+4

Step Two: Multiply Both Sides by 80

245x^2-160=-4x+320

Step Three: Move everything to the left

245x^2+4x-480=0

Final Step: Quadratic Formula

$x1=\frac{-2-2\sqrt{29401} }{245} x2=\frac{-2+2\sqrt{29401} }{245}$

6 0

2 years ago

What is the area of a parrallegram of 8cm and 4cm?

scoundrel [369]

How you would solve it is by 8 multiplied by 4.
The formula B*H
So the answer is 32cm squared.

3 0

2 years ago

Read 2 more answers

1 part sugar and 4 parts of water she uses 3/4 cup of sugar

PolarNik [594]

1 part sugar : 4 parts water

3/4 cup of sugar.

1:4 = 3/4 : x
x = 4 * 3/4
x = 12/4

x = 3 part water

5 0

2 years ago

Edward Winslow deposited $20,000 into a savings account paying 6% annual interest compounded monthly. What amount will be in the

horsena [70]

Answer:

its easy

Step-by-step explanation:

the answer is

4 0

2 years ago

How to solve the rational equation?<br><br> 1/3 + 1/2 = 1/x

tatyana61 [14]

Answer:

x = ⁶/₅

Step-by-step explanation:

$\begin{array}{rcll}\dfrac{1}{3} + \dfrac{1}{2} & = &\dfrac{1}{x} & \\\\2x + 3x & = & 6 & \text{Multiplied all terms by LCM of denominators (6x)}\\5x & = & 6 & \text{Simplified left-hand side}\\x & = & \mathbf{\dfrac{6}{5}} & \text{Divided each side by 5}\\\end{array}$

8 0

2 years ago