-x + 5y = 20 12y = 2x + 60

1 answer:

6 0

-x+5y=20
5y=x+20
12y=2x+60
6y=x+40
x+20+y=x+40
-x from each side:
20+y=40
-20 from each side:
y=20

-x+5*20=20
-x+100=20
-100 from each side:
-x=-80
x=80

y=20
x=80

Hope this helps :)

You might be interested in

- K2 - (2k –5n) + 9n; k= -1 and n= - 3

NNADVOKAT [17]

Answer:

$-41$

Step-by-step explanation:

Given:

$-k^2 -(2k -5n) +9n ; k = -1 \space \text{and} \space n = -3$

$-(-1)^2 -(2(-1) -5(-3)) +9(-3) \\ -(-1)^2 -(-2+15) +9(-3) \\ -(-1)^2 -(13) +9(-3) \\ -(1) -13 +9(-3) \\ -1 -13 -27 \\ -41$

7 0

3 years ago

Read 2 more answers

What is the probability that a randomly selected baked food will be a cupcake?

Oduvanchick [21]

24/4 because of the cupcake being lower than 2 that is 24:4

8 0

4 years ago

Read 2 more answers

In which quadrant does the terminal side of a 314° angle lie?

alexandr1967 [171]

We know that

I Quadrant -----> <span>for angles between 0 degrees and 90 degrees
</span>II Quadrant-----> for angles between 90 degrees and 180 degrees
III Quadrant-----> for angles between 180 degrees and 270 degrees
iV Quadrant-----> for angles between 270 degrees and 360 degrees

therefore

314 degrees belong to the IV quadrant

5 0

4 years ago

What is the common denominator for 7/10 and 17/25 separately

r-ruslan [8.4K]

Okay, here we have this:

We need find the least common denominator between 7/10 and 17/25:

For the denominators (10, 25) the least common multiple (LCM) is 50.

Therefore, the least common denominator (LCD) is 50.

Calculations to rewrite the original inputs as equivalent fractions with the LCD:

7/10=7/10×5/5=35/50

17/25=17/25×2/2=34/50

7 0

1 year ago

Need help really bad

alexandr1967 [171]

On what
I can't help if you don't give me. A problem

6 0

4 years ago