Sciences Grade 10 onment 5 QUESTION 2 The table below shows the results of an investigation into the efficiency of an athlete's heart. Her heart rate/pulse rate was measured during periods of exercise. At the same time, the amount of blood being pumped from her heart per minute was determined Heart rate (beats per 50 70 80 90 120 140 150 170 minute) Cardiac output (ml 4000 4800 5200 5600 6000 6000 5800 4600 per minute) determine the output of blood when the rate was 100 beats per minute​

Mrs. kirby, 58, is a moderately active woman. she works in the garden almost daily, occasionally walks with her friends, and babysits her three very active young grandchildren every weekend. she eats a fairly standard diet every day: she has cereal with milk and coffee for breakfast, some kind of salad for lunch, and a piece of meat or fish with a healthy of veggies for dinner. she usually skips desserts or has just a couple of strawberries. when asked to look at the food labels and calculate her intake of carbohydrates, fats, and proteins in grams over the entire day, on an average day, she came up with the following numbers: carbohydrates: 243 g fats: 41 g proteins: 63 g calculate what percentage of mrs. kirby's total energy intake came from carbohydrates.