What is the solution to the system of equations? 2x + y = -3 x - 2y = -4 ( __ , __ )

(-2,1)

Step-by-step explanation:

2x + y = -3  

x - 2y = -4

Multiply the first equation by 2 so we can eliminate y

2(2x + y = -3  )

4x +2y = -6

Add the second equation

4x +2y = -6

x - 2y = -4

5x   = -10

Divide by 5

5x/5 = -10/5

x = -2

We still need to find y

2x + y = -3  

Substitute x in

2(-2) +y = -3

-4 +y = -3

Add 4 to each side

-4+4 +y = -3+4

y = 1

yes

step-by-step explanation:

answer:

step-by-step explanation:

here, the total dishes = 10

dishes having meat = 3 ( chicken, meatloaf and hamburger )

thus, the probability of having meat on the chosen dishes = number of dishes having meat / total dishes

=

therefore, the probability of not having meat = 1- the probability of having meat on the chosen dishes

=

=

=

⇒ option b is correct.