Shelley drew a scale drawing of the high school. She used the scale 5 millimeters : 3 meters. If the actual width of the parking lot is 42 meters, how wide is the parking lot in the drawing?
millimeters
To find the width of the parking lot in the drawing, we can set up a proportion.
Let x be the width of the parking lot in the drawing.
Using the scale:
5 mm / 3 m = x mm / 42 m
Cross multiplying, we get:
5 mm * 42 m = 3 m * x mm
210 mm * m = 3 m * x mm
Simplifying, we get:
210 = 3x
Dividing both sides by 3, we get:
70 = x
Therefore, the width of the parking lot in the drawing is 70 millimeters.