If the scale on a map reads, 1.5 inches = 2 miles, how long is a river that measures 7 inches on the map?

Step-by-step explanation:

we know that

The scale factor is

That means

1.5 inches on a map represents 2 miles in actual

To convert the dimension on the map to real dimensions, divide by the scale factor

so

Convert to mixed number

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

the answer is 0.000652422

but if you ment to ask what is 6131 divided by 4, it is 1532.75.

step-by-step explanation: