Mathematics 18 Online
OpenStudy (anonymous):

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

OpenStudy (anonymous):

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

OpenStudy (anonymous):

??

OpenStudy (agreene):

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

OpenStudy (anonymous):

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

OpenStudy (anonymous):

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

OpenStudy (anonymous):

can someone wplease explain how to do a problem like this

OpenStudy (anonymous):

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

OpenStudy (anonymous):

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

OpenStudy (anonymous):

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

OpenStudy (anonymous):

Thank you guys! :) I got it now.

OpenStudy (anonymous):

thank you satelite73 ! but how would you find the answer

OpenStudy (anonymous):

15

OpenStudy (anonymous):

years

OpenStudy (anonymous):

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

OpenStudy (anonymous):

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

OpenStudy (anonymous):

thanks!

OpenStudy (anonymous):

?? what is this x = 15?

OpenStudy (anonymous):

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

OpenStudy (anonymous):

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

Latest Questions
brianagatica14: Any artist on here?
1 day ago 7 Replies 2 Medals
Uniful3: Art dump..
5 hours ago 18 Replies 1 Medal
mimix: hii i miss everyone
5 hours ago 5 Replies 1 Medal
hellokitty265: Art
4 hours ago 14 Replies 1 Medal
TarTar: Any Songwriters here???
1 day ago 26 Replies 3 Medals
YouMyPlug: Made some art to, took me 2 years to finish, ud83dudc4cud83dude29
5 hours ago 15 Replies 3 Medals