Combine like terms
20=2x+4
Subtract 4 from both sides
16=2x
Divide both sides by 2
8=x
Final answer: x=8
The answer is one over thirty two to the seventh power
Answer:
The value is 
Step-by-step explanation:
Generally the productivity rate is mathematically represented as

Here K is the ha the farmer could harvest in an hour and Z is a typical yield of corn in kg/ha
Now considering 1970
The productivity rate is

=>
Now considering 1940
The productivity rate is given as
Generally the productivity ratio is mathematically ration is mathematically represented as

=> 
=> 
The irrational number that can be added to pi to get a rational sum is PI.
Using a calculator, you can find out that

and so that means

so your answer is