Question

Starting with the definition 1.00in. = 2.54 cm, find the number of kilometers in 7.00mi . Please describe conversions.

Answer 1

There are several information's of immense importance already given in the question. Based on those information's, the answer can be easily deduced.

1.00 in. = 2.54 cm
We also know that
1 mile = 63360 inch
So
7 mile = 63360 * 7 inch
           = 443520 inch
Then
1 inch = 2.54 cm
443520 inch = 2.54 * 443520
                     = 1126540.80 cm
So
7 mi = 1126540.80 cm.

I hope that this is the answer that you were looking for and the answer has actually come to your desired help. I hope that the procedure is also simple enough for you to understand.

Answer 2

The answer is 11.265408 km.

To calculate the number of kilometers, we will use several conversions:
A) 1 mi = 63,360 in
B) 1 in = 2.54 cm
C) 1 cm = 0.00001 km

A) 1 mi = 63,360 in
    7 mi = 63,360 in · 7 = 443,520 in

B) 1 in = 2.54 cm
    443,520 in = 2.54 cm · 443,520 = 1,126,540.80 cm

C) 1 cm = 0.001 km
    1,126,540.80 cm = 0.00001 km · 1,126,540.80 = 11.265408 km