Suppose that this person drives at r mph going to the mountains, and gets there in 12 hours. Returning, this person drives at (r+20) mph and gets home in 8 hours. We don't know the distance yet, but can solve for the initial speed, r, by setting
d = 12r = (r+20)(8). Solving for r, r=40 mph (going) and (40+20)mph = 60 mph (returning. Since d=12 r, d = (12 hrs)(40 mph) = 480 miles (answer).
Step-by-step explanation:
C and D are the correct objectives
Answer:
y = -6
Step-by-step explanation:
If the radicand is even is the answer. Hope this helped could I possibly get brainliest?
Answer:
Azda's price is better
Step-by-step explanation:
Tisco
3 for £1.29
12 for £1.29*4= £5.16
Azda
4 for £1.68
12 for £1.68*3= £5.04
Azda offers better price for 12 items