The length of a model train is 18 inches. It is a scale model of a train that is 48 feet long. Find the scale factor.

1:32

Step-by-step explanation:

Scale factor is given as the model to actual object. Both the model and actual dimensions must be in the same unit. Given model length of 18 inch and actual train length of 48 ft, we first convert train length to inches. 1 ft =12 incheshence 48 ft will be 48*12=576 inches

Scale factor,

Therefore, the scale factor is 1:32 after simplification.

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.

(w – 2.5)(w + 2.5)

(–4v – 9)(–4v + 9)

step-by-step explanation: