4 years ago

X-y=11 2x+y=19 elimantion

Mathematics

2 answers:

Arte-miy333 [17]4 years ago

8 0

Answer:X=20/3 y=17/3

Rainbow [258]4 years ago

5 0

Answer:

x=20/3 y=17/3

Step-by-step explanation:

1. x-y=1

2. 2x+y=19

The first equation can be rewritten as 2x-2y=2

We can then subtract the second equation from this:

2x-2y=2

2x+y=19

-3y=-17

y=17/3

Plug this into to solve for x:

x-17/3=1

x=17/3+1

x=20/3

You might be interested in

Which of the following operations should be used first to solve 10t + 5 = 150.

My name is Ann [436]

Answer:

Subtract 5 to get 10t = 145.

3 0

3 years ago

Read 2 more answers

How would I solve for x?<br><img src="https://tex.z-dn.net/?f=%20%7B2%7D%5E%7Bx%20-%201%7D%20%20%3D%20%20%7B3%7D%5E%7Bx%20%2B%20

kvv77 [185]

x = $\frac{In (2) + In (3)}{In (2) - In (3)}$

Or

x ≈ - 4.41902258

I hope this helps, Good luck!

7 0

4 years ago

Write the ratio as a fraction in simplest from. 7/21

Andrews [41]

7/ (3*7)=
(7:7)/ (7*3): 7:)
(7:7):(21:7=
answer 1/3 or do you want full explanation of each step?

8 0

3 years ago

Solve for t: <br> -4(t+4)=-8t-24

kotykmax [81]

Answer:

$\rm{-2$

Step-by-step explanation:

Hi there!

$\rm{-4(t+4)=-8t-24}$

$\rm{-4t-16=-8t-24$

$\rm{-4t+8t=-24+16$

$\rm{4t=-8$

$\rm{-2$

Thus, $-2$ is our final answer.

Hope it helps! Enjoy your day!

$\bold{GazingAtTheStars}$

4 0

2 years ago

Read 2 more answers

A cubical swimming pool is of side 12m is filled with water up to a depth of 2m. What is the quantity of water in the pool in li

andrezito [222]

Volume is Length x Width x height.

The pool is cubical, so the length and width are the same dimension.

First find the volume of the pool that is filled by water:

Volume = 12 x 12 x 2 = 288 cubic meters.

Now convert cubic meters to liters:

1 cubic meter = 1,000 liters

288 x 1000 = 288,000 liters

7 0

3 years ago