What is the solution to y=-3x + 6 y = 9 (-21, 9) o (9,-21) • (-1,9) (9, -1)

(-1,9)

Step-by-step explanation:

y=-3x + 6

y = 9

We know that y=9

Substitute that into the first equation

9 = -3x+6

Subtract 6 from each side

9-6 = -3x+6-6

3 = -3x

Divide by -3

3/-3 =-3x/3

-1 =x

x=-1, y=9

(-1,9)

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.