Answer:
no solutions
Step-by-step explanation:
Given the 2 equations
y = - 7x + 8 → (1)
y = - 7x - 8 → (2)
Substitute y = - 7x - 8 into (1)
- 7x - 8 = - 7x + 8 ( add 8 to both sides )
- 7x = - 7x + 16 (add 7x to both sides )
0 = 16 ← not possible
This indicates the system has no solutions
The question is incomplete. The complete question is :
A man travels by a car from town A to town B, a total distance of 100 km at an average speed of x km/h. he finds that the time for the journey would be shorter by 25 minutes if he increases his average speed by 12km/h. Find x ?
Solution :
It is given the that the distance between town A and B is = 100 km
His initial average speed is = x km/h
His increased average speed is = 12 km/h
Time is shortened by = 25 minutes
So according to the question,


x-12 = 2500
x = 2512
Answer:
tried.. sry if it is wrong...
Step-by-step explanation:
some examples for u..
Mark me the Brainliest..PLS
Work:
-2(3x+2)≥-6x-4
-6x-4≥-6x-4
-4≥-4
0≥0
Answer:
All real numbers are solutions.
Explanation:
The first step was to multiply 3x+2 by (-2). That gives you -6x-4, which is the same as the other side. You would then add 6x to both sides, giving you -4≥-4. The last step would be to add four to both sides. When you get 0≥0, you know that all real numbers are solutions.
Answer:
i cant see the photo well
Step-by-step explanation:
try to take a clear picture