Use Cramer's Rule to solve (if possible) the system of linear equations. (If not possible, enter IMPOSSIBLE.) 4x − 2y + 3z = −9 2x + 2y + 5z = −1 8x − 5y − 2z = 15

X = 5

Y = 7

Z = -5

Step-by-step explanation:

A step by step process is explained in the image attached

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.

d

step-by-step explanation:

d