Respuesta :
Answer:
The amount of hydroelectric power produced in 1950 is 95 billion kilowatt-hours.
Step-by-step explanation:
Given:
In 1993, hydroelectric power production hit an all time high of 381 billion kilowatt-hours.
This is 1 billion kilowatt-hours more than 4 times the 1950 production level.
Now, to find the amount of hydroelectric power produced in 1950.
Let the 1950 production level be [tex]x[/tex].
So, by putting equation we solve it.
According to question:
[tex]381\ billion=4x+1\ billion[/tex]
Subtracting both sides by 1 billion we get:
⇒[tex]380\ billion = 4x[/tex]
Dividing both sides by 4 we get:
⇒[tex]95\ billion =x.[/tex]
Therefore, the amount of hydroelectric power produced in 1950 is 95 billion kilowatt-hours.
