Question

For every 3 laps that Julie ran, Joe ran 9 laps.
When Julie finished 1 lap, how many laps had Joe run? _____________
When Julie finished 9 laps, how many laps had Joe run? ____________
When the total number of laps that Julie and Joe have completed is 16, how many of those laps were Joe’s, and how many were Julie’s? ____________________________________
Make a table below to show how you got your answers. Remember to include a title and labels for each column.
ANSWER C ONLY PLEASE
ANSWER C ONLY
ONLY C

Answer 1

Answer:

• See below

Step-by-step explanation:

Make proportions and solve

When Julie finished 1 lap, how many laps had Joe run?

• 3/9 = 1/x ⇒ x = 9/3 = 3 laps

When Julie finished 9 laps, how many laps had Joe run?

• 3/9 = 9/x ⇒ x = 9*9/3 = 27 laps

When the total number of laps that Julie and Joe have completed is 16, how many of those laps were Joe’s, and how many were Julie’s?

• 3x + 9x = 16
• 12x = 16
• x = 16/12
• x = 4/3

Julie's laps:

• 3*4/3 = 4 laps

Joe's laps:

• 16 - 4 = 12 laps