Question

Regan runs and bicycles every day for a total of 60 minutes. Her body uses 9 Calories per minute during running and 7 Calories per minute during bicycling.
a) Write and simplify an expression for the total Calories Regan uses running and bicycling each day.
b) How many Calories does she use on a day when she runs for 20 minutes?

Answer 1

1. x=time running; y=time cycling
9x+7y=calories used

2. (20 times 9) + (40 times 7) =
180 + 280 = 460

Answer 2

i hope it helps;)

Answer 3

Thanks!!(:

Answer 4

ur welcome :)