# 6th grade math

posted by
**Suzanne**
.

Which proportion can you use to find the width of a full size railroad track? of 1 millimeter for every 87 millimeters in a full size train. The model railroad cars run on a track that is 16.5 mm wide.

f) 1/87 = x/16.5

g) 1/87 = 16.5/x

h) 1/x= 87/16.5

j) 16.5/87 = x/1