The length of model is ......15 inch
if the scale factor is 1/20
it means 1/20=15/h
h=12*15=300
um half hour? because at 4mph youll get 4 miles in an hour so 2 miles, is half the rate which makes it half hour
Sixth power of 10 (10^6) equals 10 with five extra zeros (1000000), which is nothing else but million. If you multiply it by 93, you will get the answer - the Sun is approx. 93000000 miles from Earth.
If I understand the drawing correctly than yes, because
6 9/12 + 6 9/12 = 12 and 18/12 = 13 and 6/12 or 13 and 1/2.
13 1/2 + 4 8/12 = 13 6/12 + 4 8/12 = 17 and 14/12 = 18 2/12 or 18 and 1/6.