WILL MAKE BRAINLIEST Your classmate is starting a new fitness program. He is planning to ride his bicycle 50 minutes every day. He burns 5 calories per minute bicycling at 11 mph and ! minute bicycling at 15 mph. How long should he bicycle at each speed to burn 400 calories?
He should bicycle for ———— minutes at 11 mph and ______ minutes at 15 mph
