How do I calculate 3 - (3^5 - 37)/(5*3^4)
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How do I calculate 3 - (3^5 - 37)/(5*3^4)

[From: ] [author: ] [Date: 12-04-09] [Hit: ]
To get an exact answer, simply follow order-of operations.Exponents are applied before any other operators,The expressions in parentheses have just one operator each,Reduce fractions, if possible.......
One way is to simply type it into the Google or Yahoo! search box above. Both search engines also double as calculators. I get 2.49135802 from Google.

To get an exact answer, simply follow order-of operations. Exponents are applied before any other operators, so
3 - (3^5 - 37)/(5*3^4) = 3 - (243 - 37)/(5*81)

The expressions in parentheses have just one operator each, so they can be evaluated now:
= 3 - 206/405

Reduce fractions, if possible. With a bit of work, you can discover that 206 and 405 have no common factors. (GCD(206,405) = 1) So 205/405 is already in least terms.

To subtract the fraction from an integer, rewrite the integer as a fraction with the same denominator:

3 - 206/405 = 1215/405 - 206/405 = 1009/405

That's the algebra-style improper fraction. That's equal to the mixed number 2 199/405.

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3 - (3^5 - 37)/[(5)*3^4]; exponents first
3 - [(3 * 3 * 3 * 3 * 3) - 37]/[(5) * 81]; simplify
3 - [243 - 37]/[405]; simplify
3 - (206)/(405); put 3 over 1
3/1 - 206/405; make a common denominator (405) in this case
1215/405 - 206/405; simplify
1009/405 <=======Answer

Blessings

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This is just your order of operations...PEMDAS, Parentheses - Exponents - Mult - Div - Add - Sub

"Please Excuse My Dear Aunt Sally"

So, first do what is inside the parentheses according to the same order:
exponents first: 3^5 = 243, 3^4 = 81

3 - (243 - 37)/(5*81) next --> 3 - 206/405 next is div --> 3 - 0.5086 and finally sub -->

2.491

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3 - (3^5 - 37)/(5*3^4)

Since there is no variables, just do PEMDAS

3 - (243 - 37)/(5 x 81)

3 - (206) / ( 405)

1215/405 - 206/405 = 1009/405

Reduce

1009/405 = 2 199/405

The answer is 2 199/405

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Follow the order of operations rules.

Inside parentheses first

3 - (3^5 - 37)/(5*3^4) = 3 - (243 - 37)/(5*81) = 3 - 206/405 = (3*405 - 206)/405 = 1009/405

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3 - (3^5 - 37)/(5)(3^4)

3 - (243 - 37)/(5)(81)

3 - 206/405

2 199/405 or 1009/405 or aproximately 2.49

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3^5/5•3^4 = 3/5
37/5•3^4 = 37/405
3/5 = 243/405
so we have 3 - (243-37)/405
= 3 - 206/405
= 2&199/405

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3 - (243 - 37)/(5 * 81)

3 - (206)/(405)

2 206/405 is about as precise as I can get

-
3 - (243 - 37)/(5 *81)
3- 206/405
3 - 0.51
2.49
1
keywords: How,do,37,calculate,How do I calculate 3 - (3^5 - 37)/(5*3^4)
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