math
posted by Anonymous on .
a boy 45 in tall casts a shadow 90 long. At the same time his father casts a shadow 144 in

Cross multiply and solve for x.
45/90 = x/144 
I don't get it!
posted by Anonymous on .
a boy 45 in tall casts a shadow 90 long. At the same time his father casts a shadow 144 in
Cross multiply and solve for x.
45/90 = x/144
I don't get it!