Question

Jessica weighs 125 pounds. She rode a bike at 17mph for 25 minutes. What is the calorie cost of this activity?

a. 185 calories
b. 178 calories
c. 180 calories
d. 190 calories
e. 188 calories

Answer 1

b. 178 calories

ok so 17mph is 0.57 weight/min

so what were going to do is multiply 125 times 0.57 which is 7.125

then multiple that answer by 25 mintues: 7.125 x 25 = 178.12...etc

now if we round this up it stays as 178!