Sumo wrestlers in Japan are well known for their dedication, discipline, and very large bodies. A young sumo wrestler decides to go on a special high-protein diet to gain weight rapidly. After 4 months on this diet, his mass is 100 kilograms. After 14 months, his mass is 160 kilograms. Let's assume that the sumo wrestler's mass changes at a constant rate while he is on this special diet.
What was the wrestler's mass in kilograms when he began his diet?

Question

Sumo wrestlers in Japan are well known for their dedication, discipline, and very large bodies. A young sumo wrestler decides to go on a special high-protein diet to gain weight rapidly. After 4 months on this diet, his mass is 100 kilograms. After 14 months, his mass is 160 kilograms. Let's assume that the sumo wrestler's mass changes at a constant rate while he is on this special diet.
What was the wrestler's mass in kilograms when he began his diet?

anonymous · Answer

Okay, you would do 14-4=10.  You would then divide that by 60.  Once you get that number you would multiply that by 4 and subtract it from 100