Answer: it will take 7 hours before until Carolyn catches up with Heather.
Step-by-step explanation:
By the time Carolyn catches up with Heather, they would have travelled the same distance.
Heather left the mall traveling 16 mph. Let t represent the time that she spent in travelling this distance.
Distance = speed × time
Distance travelled by Heather would be
16 × t = 16t
Then, 3 hours later, Carolyn left traveling the same direction at 28 mph. Time spent by Carolyn in travelling the same distance would be (t - 3) hours
Distance travelled by Carolyn would be
28(t - 3 = 28t - 84
Since the distance travelled is the same, then
16t = 28t - 84
28t - 16t = 84
12t = 84
t = 84/12 = 7
Answer:
2/5
Step-by-step explanation:
The total number of candies are 2+1+2 = 5 candies
P (peppermint) = number of peppermints/total
=2/5
Answer:
C. 33
Step-by-step explanation:
Sample mean is right in the centre of the interval
Sample mean:
(25+41)/2
66/2
33