2 years ago

What is the solution to the system x+ y =4 and 2x - y = -1

Mathematics

1 answer:

Lostsunrise [7]2 years ago

4 0

Answer:

Step-by-step explanation:

hello :

the system is : x+ y =4 ...(*)

2x - y = -1...(**)

add(*) and (**) : 3x=3 so : x=1

put this value into (*) : 1+y=4 so : y=3

one solution : (1 , 3)

You might be interested in

Solve the following inequality: 10t + 7 , 200 > 21 , 000

Alla [95]

Answer:

t > 1380

Step-by-step explanation:

Subtract 7200 from both sides

10t + 7200 - 7200 > 21000 - 7200

Simplify

10t > 13800

Divide both sides by 10

10t/10 > 13800/10

Simplify

t > 1380

4 0

3 years ago

Can someone answer theese 3 questions.

NNADVOKAT [17]

Answer:

1.) A

2.) D

3.) A

Step-by-step explanation:

7 0

1 year ago

How many times does 20 go into 74??

Dima020 [189]

About three times. Just divide 74 by 20 which is 3 but exactly it is 3.7.
hoped it helped

7 0

2 years ago

Read 2 more answers

In a coffee shop, cups of coffee cost 2$ and muffins cost 3$. The maximum amount that you can spend is $18. The equation that re

lions [1.4K]

Answer:

c= 0 m=6

Step-by-step explanation:

0x2= 0

3x6=18

18+0=18$

8 0

2 years ago

I need help!! I don't know how to do this at all

Harman [31]

You have to make a proportion:
12+x/8=8/x
Then cross multiply to solve for x

8 0

3 years ago