Let the speed of the slower car = X
The speed of the faster car would be X + 15
They both traveled 3 hours and went 315 miles
Set up an equation:
3x + 3(x+15) = 315
Now solve for x:
3x + 3x +45 = 315
Simplify:
6x + 45 = 315
Subtract 45 from both sides:
6x = 270
Divide both sides by 6:
x = 270/6
x = 45
The slower car was doing 45 miles per hour.
The faster car was doing 60 miles per hour.
To find the difference you simply have to subtract 43% from 57%
57% - 43%
14% is your answer
Hope this helps!
Answer:
120 calories
Step-by-step explanation:
Make 2 proportions
90 calories for 6 ounces
90/6
x calories for 8 ounces
x/8
Set them equal to each other
90/6=x/8
Cross multiply
6x=720
Divide by 6 on both sides
x=120
So, there are 120 calories in 8 ounces of juice
Hope this helps! :)