Timmy is training for a triathlon. For every four minutes spends running, he spends seven minutes biking. How many minutes will Timmy run if he has spent 63 minutes biking
63 total minutes biking divided by every 7 minutes he bikes for every four minutes he runs equals 9. So 9 minutes for 4 minutes he runs is basically 9 * 4 which equals 36. So 36 minutes.
