From one settlement to another 4 km away, John walked 1 km / h faster than going back. So on the way back, it took 12 minutes longer. Solving which equation would we know at what speed John was going if we denoted that speed x km / h? A. 4x − 1−4x = 15

B. 4x − 1−4x = 12

C. 4x + 1-4x = 15

D. 4x − 4x − 1 = 12

answer: h

step-by-step explanation:

1. 2

2. 11

3. 5

4. 6

5. 7

6. 5

7. -1

8. 1

step-by-step explanation:

answer:

given the linear inequality :

add 2y to both sides we get;

simplify:

add 12 to both sides of an equation;

simplify:

divide both sides by 2 we get;

or

the related equation for the inequality equation [1] is;

y-intercepts defined as the graph crosses the y-axis.

substitute x =0 in [2] to solve for y;

y = 6

x-intercepts defined as the graph crosses the x-axis.

substitute value y = 0 to solve for x;

subtract 6 from both sides we get

multiply both sides by 2 we get;

or

x = -12

now, plot these point (0, 6) and (-12, 0) on graph as shown below and shade the graph below the solid line.