Answer:
7.5 hours
Step-by-step explanation:
<u>1 method:</u>
Amber drove at an average speed of 55 mph.
Austin averaged 75 mph per hour.
The difference in speed is 20 mph, this means that each hour Austin drove 20 miles more.
Amber drove 110 miles in 2 hours, then Austin needs 110:2=5.5 hours to catch Amber, so in total after 5.5+2=7.5 hours Austin will catch up Amber.
<u>2 method:</u>
Let t hours be the time Amber was driving, then t-2 hours ia Austin's time.
Amber distance = 55t miles
Austin's distance = 75(t-2) miles
When Austin caught up with Amber, their distances are the same:
Answer:
J + W = T.
Step-by-step explanation:
T would be the total.
Answer:
The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days. 3. A line up for tickets to a local concert had an average (mean) waiting time of 20 minutes with a standard deviation of 4 minutes.
Step-by-step explanation:
Answer:
Take a screenshot of it then post
Step-by-step explanation:
A can of paint will be 10 dollars. the rollers will also be 10 dollars. makes sense with 2 can being 20 and then a roller being 10 equaling 30 dollars. same with 3 cans being 30 and 2 rollers being 20 adding up to 50
