The porch light is an automatic switch that will start turning on at 19.00 - 19.30 or 20.00 - 21.00 at random. The lights will automatically go out at some point in time between 04:00 and 06:00 in the morning. Suppose it is known that tonight the light is on for t hours, the probability that the light is on for 9 < t < 10 hours is ...

If 19:00<=x<=19:30 and 4:00<=y<=6:00

Total time difference

Probability=

4.08%

step-by-step explanation:

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation: