3 years ago

Weegy solve the system of equations 2x+3y=40 and -2x+2y=20

Mathematics

1 answer:

prisoha [69]3 years ago

5 0

adding the 2 equations eliminates x and gives:-

5y = 60

y = 12

Plug y = 12 into the first equation:-

2x + 3(12) = 40

2x = 40 - 36 = 4 so x = 2

Answer is x = 2 and y = 12.

You might be interested in

Help i need help with this 10x+16>6x+20

Mamont248 [21]

What does > mean?

10x + 16 ≥ 6x + 20

Subtract both sides by 16

10x ≥ 6x + 4

Subtract both sides by 6x

4x ≥ 4

Divide both sides by 4

x ≥ 1

I believe this is your answer good luck!!

<<<Emily>>>

4 0

3 years ago

What fraction is greater than 2/3

lutik1710 [3]

2/3 is basically 0.6666666667 which is the same as 66% so any percentage bigger than 66% such as 75% (0.75) which is 3/4 (as a fraction) is bigger than 2/3

8 0

2 years ago

Helpppp a girl outtt i will give brainlest

Ivenika [448]

Answer:

Y= 40

Step-by-step explanation:

I know the y equals 40 because I used

$a {}^{2} + b {}^{2} = c {}^{2}$

But for z and x I got stuck, so I hope I helped you a little to move forward with this problem.

YOU CAN DO THIS!!!!!

7 0

3 years ago

Can someone please help me .?

MariettaO [177]

Answer:

Step-by-step explanation:

5+7

4 0

3 years ago

illey wants to solve the following equations using the method of elimination: y = x – 2 y = 4x – 8 What number should y = x – 2

lbvjy [14]

The second equation has 4x in it t. So to eliminate X, you need to multiply y = x-2 by -4, so the x would become -4x.

7 0

3 years ago