Which verbal expression represents 2(n-6)?
1.two times n minus six
2.two times six minus n
3.two times the quantity n less than six
4.two times the quantity six less than n
Hannah took a trip to visit her cousin. She drove 120 miles to reach her cousin's house and the same distance back home.
It took her 1.2 hours to get HALFWAY to her cousin's house. What was her average spped , in miles per hour, for the first 1.2 hours of the trip?
Hannah's average speed for the remainder of the trip to her cousin's house was 40 miles per hour. how long, in hours did it take her to drive the remaining distance?
Traveling home along the same route, Hannah drove at an average rate of 55 miles per hour. After 2 hours her car broke down. How many miles was she from home?
Answers & Comments
Verified answer
"two times the quantity six less than n"
60 miles in 1.2 hours is 50 mph.
60 miles at 40 mph requires 1.5 hours.
2 hours at 55 mph is 110 miles.
Number 4
Do NOT put 3. It is 4. 6 less than n means n-6. And that quantity is multiplied by 2, so the answer is the final option, number 4.
a) 3
no.4
hannahz average speed halfway to cousins house is 60/1.2 m/h
time taken for remaining journey is 40 x 60 min
distance covered towards home 55x2 miles
distance away from home 120-(55x2) miles
3, the easier way of saying it is n minus six, multiplied by two.
number 4 - or it simplifies to 2n-12