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#1 Re: Help Me ! » calculating distance » 2011-02-16 14:48:32

S.M
4DLiVing wrote:

Hi Mariner;

you're close...

you need to add the 45/60, or 3/4, or .75 to the three hours.

So you wind up with...

48 x (3 + .75)

sorry,I haven't seen ur post
big_smile

#2 Re: Help Me ! » calculating distance » 2011-02-16 14:46:02

S.M

actually
I think we first calculate the time
time=3+(3/4)=15/4
D=48×(15/4)= 180 Km/h
smile

#3 Re: Puzzles and Games » Add 13 more and post it forever. » 2011-02-16 14:37:29

S.M

9347
(7×√2)-(√9/3)=13

#4 Re: Help Me ! » 10n – n = 10(n – 1) + (10 – n) » 2011-02-16 13:51:19

S.M
haiying wrote:
S.M wrote:

hmmmmmmmmmm
10(a-1)+(10-a)=
10a-10+10-a=
10a-a
smile

i need the opposite way ... how 1a - a = 10 (a - 1) + (10 -a):o

hmmmmmmmmmm
ok
see this one smile
------------------
10a-a=                                     
we add +10-10
10a-a+10-10=
we arrange them
10a-10+10-a=
10(a-1)+(10-a)

#5 Re: Help Me ! » 10n – n = 10(n – 1) + (10 – n) » 2011-02-16 12:29:27

S.M

hmmmmmmmmmm
10(a-1)+(10-a)=
10a-10+10-a=
10a-a
smile

#6 Re: Puzzles and Games » Add 13 more and post it forever. » 2011-02-16 12:25:00

S.M

9321
19-(2*3)=13!

#7 Re: Puzzles and Games » Add 13 more and post it forever. » 2011-02-16 11:50:10

S.M

715×13=9295

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