Question

LESSON 1 SESSION 2The photo shows a small coin. The scale from the actual coin to the photo is8 mm to 2 cm. In the photo, the distance across the coin is 3.25 cm. What is thedistance across the actual coin? Show your work.UTION3.25 cm

Answer 1

The dimensions of the actual coin and the photo have all the same scale, therefore, the ratio must be the same. If we call the distance across the actual coin as x, we have:

`(8mm)/(2cm)=(x)/(3.25cm)`

Solving for x:

`x=(4mm)/(cm)*3.25cm=13mm`

The actual distance across the coin is 13 mm.