Models of earth, moon, and mars are proportionally sized in a 1: 300 million scale. earth and moon are really 384,400 km (238,855 mi) apart. using our 1: 3 x 108 scale, earth and moon would be how far apart? [part a = 5 pts; part b = 5 pts] (a) cm (b) in [give your answer in centimeters and inches. round to 1 decimal. hint: use proportions; remember that 2.54 cm = 1 in.] show your work (round each answer to 1 decimal): [20 pts total] [work = 10 pts]

The answers are:  (a) 128.1 cm   (b) 50.4 inch

Explanation

Scale ratio is.....  

It means the ratio of the scaled distance to the real distance is

Given that, Earth and Moon are really 384,400 km apart.

Suppose, the scaled distance between Earth and Moon is km.

So the equation according to the ratio will be ......

As,  1 km = 100000 cm

So,   ≈ 128.1 cm

Now,  2.54 cm = 1 inch

So, inch

Thus, using scale, Earth and Moon would be 128.1 cm or 50.4 inch apart.

i would need to see the dot plot : )