Which scales are equivalent to 1in to 1ft?

Question

Select all that apply 1 to 12, 1/12 to 1, 100 to 0.12, 5 to 60, 36 to 3, 9 to 108

Answer 1

There are 12 inches in a foot so your scale of

1 inch to 1 foot equates to 1 to 12 so equivalent

proportions should equate to 1/12

 

1 to 12 IS equivalent

 

1/12 to 1:  (1/12)/1 = 1/12 so this IS equivalent

 

100 to 0.12:  100/0.12 = 10000/12 is NOT equivalent

 

5 to 60:  5/60 = 1/12  which IS equivalent

 

36 to 3:  36/3 = 12/1 NOT 1/12 so it is NOT equivalent

 

9 to 108:  9/108 = 1/12 so this IS equivalent