Find the sum and difference of the greatest and the least six digit number formed by the digits 2,0,4,7,6,5 using each digit onl
2 answers:
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Answer:
<em>or 704,000</em>
Step-by-step explanation:
<u>Standard Form of Numbers</u>
Any number that we can write as a decimal number between 1.0 and 10.0, multiplied by a power of 10, is said to be in Scientific Notation. Some authors consider standard form and scientific form as the same, but others state that standard form is the common form of expressing numbers, i.e., a sequence of digits, separated by thousands by a comma, and separated from the decimal part by a dot.
We'll give here both answers.
We have to calculate:
Since the numbers don't have the same exponent, we must make them equal. Let's make the second number have an exponent of 5, by dividing by 10:
Now we add:
It's correctly expressed in scientific notation. Now to convert to 'standard form', multiply by :
The given equation is
Here we have to solve for n. First we need to get rid of the denominators and for that we do cross multiplication .
Now we need to isolate n. And for that we need to get rid of 12, by dividing both sides by 12
And that's the required value of n .