Adrienne read that she can bun 236 cal by bicycling at 10 mph for 1 h or 502 cal by bicycling at 14 mph for 1 h. how long would she need to bicycle at 10 mph to burn as many calories as she would by bicycling at 14 mph for 1 h? (4) 5. the saamis tipi was built for the 1988 olympics in calgary and then moved to medicine hat. its height is 215.o ft. the diameter at its base is 160.0 ft. a manufacturer wants to make a replica model for a display that is 1.5 ft high. (4) a) what scale factor, to the nearest thousandth, would the manufacturer need to use for the model? (2 marks) b) what would be the diameter at the base, to the nearest tenth of a foot? (2 marks) 6. a company ships its sports equipment in similar boxes that are two different sizes. the red box is a right rectangular prism with the dimensions 60 cm by 30 cm by 21 cm. the blue box has dimensions that are related by a scale factor of 2/3 (6) a) what is the volume of the red box? (2 marks) determine the volume of the blue box, without using the formula for volume (2 marks). b) c) what ratio compares the surface area of the blue box to the surface area of the red box? (2 marks)