3 years ago

What is the solution of 3x + y = 9 and 3x - 5y = 15?

Mathematics

1 answer:

Alborosie3 years ago

8 0

Step-by-step explanation:

3x + y = 9

3x − 5y = 15

Solve with elimination. Subtract the second equation from the first.

6y = -6

y = -1

Plug into either equation to find x.

3x + -1 = 9

3x = 10

x = 10/3

You might be interested in

What is the value of y

tangare [24]

Y=14.5
X= 5
Hope this helps :)

3 0

4 years ago

Apple + Orange = $20 Apple is twice the price of the orange How much does the apple cost?

OverLord2011 [107]

It costs 40 dollars bcz twhce the number of 20 is 40 its like multiple by 2

7 0

3 years ago

For the parent function y= √x what effect does a value of k = -3 have on the graph?

Anettt [7]

Answer: y=x-5 is the answer

3 0

3 years ago

Help pwetty pwease :(

GalinKa [24]

Answer:

Very blurry picture I cant make out hat the question is, you should try typing the equation and sending a screenshot of the graph that would be a lot better!

Step-by-step explanation:

4 0

3 years ago

Remove all perfect squares from inside the square root√450 I need an answer ASAP please.

lorasvet [3.4K]

Answer:

$\sqrt{450}= 21.21$

Step-by-step explanation:

$\sqrt{450}=\sqrt{225*2}=15\sqrt{2}=21.21$

6 0

4 years ago