Question

niles casts a shadow that is 8 feet long and at the same time his dog casts a shadow that is 30 inches long. If niles 5 1\2 feet tall, how tall is his dog? Round to the nearest tenth​

Answer 1

Let d be the height of the dog. Then, in inches:
66/96=d/30
96d=1980
d=20.625 inches as the height of the dog.