Question

A physician tells her patient that her surgical incision will be 8 millimeters wide. How wide is the incision in inches?

Answer 1

0.3149608 in. wide

Explanation:

1 milimeter=0.0393701 inches

8x0.0393701=0.3149608in. wide

Answer 2

0.315 inches

Explanation:

1 millimeter = 0.1 cm

2.54 cm = 1 in

Now convert 8 millimeters to inches

8mm x
`(0.1 cm)/(1 mm)` x
`(1 inch)/(2.54 cm)` ; multiply across and divide and cancel units

`(0.8 inch)/(2.54)` = 0.315 inches