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 #1
avatar+3454 
+5

This question is quite similar to this one: http://web2.0calc.com/questions/evaluate-the-expression-2-y-2-for-y-3-10-4-8-2

 

If you can figure that one out, this one shouldn't give you much trouble. If you can't figure it out, tell us what your stumped on and we can help.

Jun 10, 2014
 #1
avatar+90 
+5

Recipical (you have the wrong spelling) is exchanging the numerator and denominator

or simply saying let the number upside down

for example $${\frac{{\mathtt{7}}}{{\mathtt{8}}}}$$ , its recipical is $${\frac{{\mathtt{8}}}{{\mathtt{7}}}}$$

for an integer , for example 5 , its recipical is $${\frac{{\mathtt{1}}}{{\mathtt{5}}}}$$ ( 5=$${\frac{{\mathtt{5}}}{{\mathtt{1}}}}$$)

read more at http://www.mathsisfun.com/reciprocal.html

 

Relatively prime (you have the wrong spelling again) means the highest common factor/greatest common divisor is always 1

for example , for 2 prime numbers, 3 and 7 , as they have only 1 common factor (here is 1) , they are relatively prime

or 2 connecting number , like 15 and 16 , their common factor is 1 and then they are relatively prime

read more at http://wiki.answers.com/Q/What_is_a_relative_prime_number?#slide=1

Jun 10, 2014
 #3
avatar+3454 
+8

If you are wondering how you can make sure that your answer is right, you can always check your answer by putting the number that n equals in the original equation.

Let's put rosala's n = -2 in to make sure it works!

10(11n+5)=-10n-10+90n

10(11(-2)+5)=-10(-2)-10+90(-2)

10((-22)+5) = (+20)-10+(-180)

10(-17) = 20-10-180

-170 = 10-180

-170 = -170

 

This is a true statement, -170 does equal -170, so we know the answer is right.

Anyway, hope this helped.

Jun 10, 2014

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