Solving systems of equations by substituting (find x and y)

First solve for x or y in the first equation. Then substitute that number in the second equation for its same variable. Solve the second equation for that variable. Now you have your first number. Now you want to take that number and substitute it back into the first equation to find your second value. Put your two values in an ordered pair (x, y)

Step-by-step explanation:

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

yes.. it's proven to be 36.