1 in 10 is the probability of two people picking the same number.
She burns 250 by herself and she burns 3 times as many with her sister.
Multiply the calories by herself by 3:
250 x 3 = 750
Now you need to multiply that by the number of hours.
The formula is a. t[c(h)] = 750h
<span>Round 38.872601 to the nearest hundredths place = </span>38.87