SOLUTION: If n^3 is 180 greater then n^2 then n is A 9 b 8 c 7 d 6

Question 274810: If n^3 is 180 greater then n^2 then n is
A 9 b 8 c 7 d 6

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
If n^3 is 180 greater then n^2 then n is
A 9 b 8 c 7 d 6
---------------
n^3 = n^2 + 180
n^3 - n^2 = 180
-------------------
If there were a lot of choices, using elimination would be good. eg, there are no 7's in 180, so it's excluded.
-------------------------------
Since there are 4 to choose from, try them in order
n = 9: 729 - 81 = 648 way too much
n = 6: 216 - 36 = 180 It's 6

RELATED QUESTIONS
Classify if true or false, & if false five a counter example a. if 3/n, then 9/n b.... (answered by stanbon)

If n is a positive integer and {{{(n+1)/2^n = 1/2}}}, then n= a.1 b.2 c.3 d.4... (answered by Edwin McCravy)

If n is a positive integer and n+1/2^n=1/2 then n= a. 1 b. 2 c.3 d. 4... (answered by Edwin McCravy)

Suppose n is divisible by 8 but not by 3. Then which of the following CANNOT be an... (answered by Edwin McCravy,Theo)

If n is a whole number then the largest number that n(n+1)(2n+1) is divisible by for all... (answered by jsmallt9)

8^n/3 = 1/4 then what is the value of n^n ? a -4 b -1/2 c - 1/4 d 1/4 e (answered by stanbon)

If n is positive and n^2 = 51 , between which two numbers does n lie? A. 5 and 6 (answered by MRperkins)

(a) Let p be a prime number greater than 3. What are the possible remainders of p upon... (answered by jim_thompson5910)

If f(x)= x-2/x+1, then f(n+1) is equal to.. A)-1/2 b)n-2/n+1 c)n-1/n+2... (answered by richard1234)