What is the pattern? 2x/3,x/3,x/6,x/

2/3x * 1/2 = 2/6x reduces to 1/3x...same as x/3
1/3x * 1/2 = 1/6x...same as x/6
1/6x * 1/2 = 1/12x...same as x/12

its a geometric series with a common ratio of 1/2...u multiply 1/2 by the number to find the next number.

1 hm=100m

1.5hm=150 meters each tower is from each other.

500km(1000m/1km)=500,000 meters the wire covers.

500,000/150 = 3333.33 towers. Just because we want to be safe and have enough towers we can say we have 3334 towers in the span of 500,000 meters.

B)

1kV=1000V

500kV(1000V/1kV)= 500,000 V

There are 1.2 volts in a AA battery so we divide 500,000/1.2 = 416666.67 times larger