Please explain how to do this Will give

Answer

11 children tickets were sold and 10 adult tickets were sold.

Step-by-step explanation:

Okay first set your variables

x=adults 6x

y= children 4y

the first equation will be 6x+4y=104

the second will be x+y=21 because she sold 21 tickets

now this is a substitution equation. so, we rearrange the second equation so y=-x+21

now substitute the y in the first equation

6x+4(-x+21)=104

distribute the properties and you get

6x-4x+84=104

2x+84=104

move your 84 and change the sign

2x=20

x=10

now you put x into the first equation,

6(10)+4y=104

60+4y=104

move your 60 and change the sign

4y=44

y=11

So 11 children tickets were sold and 10 adult tickets were sold.

hi there!

the answer to this question is d: 35

step-by-step explanation:

5 to the power of 2 is 25

2 multiplied by 5 is 10

then you add the 2 numbers and you get 35

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column