Question

The ratio between the two train is 5:3.if the first train runs 350 km in 2 hours.what is the speed of second train

Answer 1

let one speed be x
let second train speed be y

x:y: :5: 3

x/y=5/3
x=5/3y

x=350/2
=175km/hr

175=5/3y

y=175*3/5
=35*3
=105km/hr

Answer 2

Answer:

Explanation:Formal charges help in the selection of the lowest energy structure from the number of possible

Lewis structure.

Lowest energy structure is the one with a factor based on a pure covalent bond between the two

atoms.