V1 = 80 km/hr
v2 = 60 km/hr
The speed of the car from point A is 80 km/hr while the speed of the car from point B is 60 km/hr.
Hope This Helps!
Answer:
old
Step-by-step explanation:
The equation between two points is given as:
Plugging the values of the points given we have:
Therefore the equation in standar form is:
Answer:
108
Step-by-step explanation:
Givens
- let the oldest one = 5x
- Let the youngest one = 3x
- Let the middle one = 4x
Equation
Solution
- 3x + 18 = 5x Subtract 3x from both sides
- 3x - 3x + 18 = 5x - 3x Combine
- 18 = 2x Divide by 2
- 18/2 = 2x/2 Divide
- x = 9
Answer
- 3x = 3*9 = 27
- 5x = 5*9 = 45
- 4x = 4*9 = 36
- The sum is 108
Comment
This is a very tricky problem. It is not the usual way that 3 part ratios are handled. Thanks for posting.
If a = b
and 35 - 5 = 30 then x -12 =30 +12 +12 so x = 42