SOLUTION: 3% less efficient at 60 mph 17% less efficient at 70 mph. Compare the efficiency of a Toyota Camry (33 mpg highway) versus a Toyota Prius (48 mpg highway) at speeds of 55 mph,

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: 3% less efficient at 60 mph 17% less efficient at 70 mph. Compare the efficiency of a Toyota Camry (33 mpg highway) versus a Toyota Prius (48 mpg highway) at speeds of 55 mph,       Log On


   



Question 1128021: 3% less efficient at 60 mph
17% less efficient at 70 mph.
Compare the efficiency of a Toyota Camry (33 mpg highway) versus a Toyota Prius (48 mpg highway) at speeds of 55 mph, 60 mph, and 70 mph.
I got this far: Camry at 60mph is 32.0 mpg, and 27.4 mpg at 70mph.
The Prius gets 46.6mpg at 60 mph, and 39.8mpg at 70mph.
But now I'm stuck:
If gasoline costs $3.52 per gallon, how much money would you save by going 60 mph versus 70 mph on the trip of 1,500 miles in the Camry? Prius?
How much longer, to the nearest minute, would it take to travel 360 miles at 60 mph versus 70 mph?

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
 

55 mph 60 mph 70 mph
Camry 33 mpg 32.0 mpg 27.4 mpg
Prius 48 mpg 46.6 mpg 39.8 mpg
...........
B)how much money would you save by going 60 mph versus 70 mph on the trip of 1,500 miles
Camry: +%281500%2F27.4+-1500%2F32%293.67=28.88
Prius: +%281500%2F39.8-1500%2F46.6%293.67=20.18
..........
C)How much longer, to the nearest minute, would it take to travel 360 miles at 60 mph vs 70 mph
%28360mil%2F%2860mph%29+-+360mil%2F%2870mph%29%2960
=6h-5.142857142857143h
=0.857h
=51.42min=>round to whole number
=51mi