What is the solution set of the following system of equations?
5x - 3y - 10 = 0
x + y - 7 = 0
[(31/8, 25/8))
[(25/8, 318)
(45/2, 31/2))
((31/2, 45/2)

answer:

4

step-by-step explanation:

33

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.

its 4 because 2 times 2 is 4, if you double the number two you get four