Question

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

Answer 1

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

Answer 2

??

Answer 3

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

Answer 4

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

Answer 5

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

Answer 6

can someone wplease explain how to do a problem like this

Answer 7

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

Answer 8

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

Answer 9

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

Answer 10

Thank you guys! :) I got it now.

Answer 11

thank you satelite73 ! but how would you find the answer

Answer 12

15

Answer 13

years

Answer 14

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

Answer 15

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

Answer 16

thanks!

Answer 17

?? what is this x = 15?

Answer 18

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

Answer 19

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