Use the quadratic formula to solve x^2-5x+4. show your work. then describe the solution.

X = 13/2 or X =7/2

Step-by-step explanation:

x^2-5x+4

Where a =1, b= -5, c= 4

X = -b( +,-) √b^2-4ac/ 2a  

X = -(-5)( +,-)√(-5)^2-4(1)(4) / 2(1)

X= 5 ( +,-)√25-16 /2

X= 5 ( +,-)√9/2

X = 5+3/2 or X =5 -3/2

X = 13/2 or X =7/2

It has got two solutions

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.

here is your mark brainliest