The area of a rectangle is 100cm2. After a dilation, the area is 25cm2. What is the scale factor? You may give your answer as a fraction or decimal

1/4 or 0.25

Step-by-step explanation:

Initial area of the rectangle = 100cm²

After dilation, the area reduces to 25cm²

This shows that there is reduction in the size of the rectangle.

The ratio of the final area to the initial area will give the scale factor.

Ratio = 25cm²:100cm²

= 25/100

= 1/4

The scale factor is therefore 1/4 or 0.25

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.

stops on an even number.