Solve:
(n+2)!/(n-1)! = 210

Question

anonymous · Answer

1/(n-1)(n)(n+1)=210

anonymous · Answer

??

agreene · Answer

$$\frac{(n+2)!}{(n+1)!}=n(n+1)(n+2)$$
it is a bit more straight forward when you realise that.

anonymous · Answer

Mr.klinker is 35 and his daughter is 10 , in how many years will mr.klinker be twice as old as his daughter?  ~~PLZ HELP

anonymous · Answer

$$\frac{(n+2)!}{(n-1)!}=(n+2)(n+1)(n)$$

anonymous · Answer

can someone wplease explain how to do a problem like this

anonymous · Answer

i i get it
i was doing it as plus one but its minus one

anonymous · Answer

so basically you have 3 consecutive integers whose product is 210,  which gives n = 5

anonymous · Answer

Mr.klinker is 35 and his daughter is 10 , in how many years will mr.klinker be twice as old as his daughter?  ~~PLZ HELP
sorry i posted here but wont let me post

anonymous · Answer

Thank you guys! :) I got it now.

anonymous · Answer

thank you satelite73 ! but how would you find the answer

anonymous · Answer

15

anonymous · Answer

years

anonymous · Answer

well for a small number like 210 i would guess and check

anonymous · Answer

35+x=2(10+x)
35+x=20+2x
15=x

anonymous · Answer

thanks!

anonymous · Answer

?? what is this x = 15?

anonymous · Answer

zalxo asked this:

Mr.klinker is 35 and his daughter is 10 , in how many years will mr.klinker be twice as old as his daughter?  ~~PLZ HELP
sorry i posted here but wont let me post

anonymous · Answer

so for my second question George is 7 and his mother is 37. In how manyyears will his mother be 3 times as old as he is. would the answer be 
37+x=3(7+x) 
37+x=21+2x