Solve the simultaneous equations

3a+2b+1

a+2b=5

a=

b=

a=-2, b=7/2

Step-by-step explanation:

To solve for a and b, we can use the elimination method for these system of equations.

3a+2b=1

a+2b=5

Since there is a 2b in both equations, we can subtrac the 2 equations.

2a=-4

a=-2

Now that we have found a, we can plug it into ay of the equations to find b.

-2+2b=5

2b=7

b=7/2

possible outcomes

1a

1b

2a

2b

3a

3b

there are a total of 2 number one's

so there is a possibility of 2/6 chance to get the number 1

There are 3 a's in the set of data so there is a 3/6 chance to get an a

But we should exclude 1a because it is already counted in the first set when we counted the total number of 1's so there is a 2/6 chance of getting an A

add

2/6+2/6=4/6

There is a 4/6 or 2/3 chance of getting either an a or an 1

Step-by-step explanation: