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Mathematics 17 Online
OpenStudy (anonymous):

http://media01.switchedononline.com/g_alg01_2011/10/374.gif Step by Step Please

OpenStudy (ash2326):

\[\frac{3}{10} (t+2)-\frac{t}{20}\ge\frac 35\] Do you know the LCM of 5, 10 and 20?

OpenStudy (anonymous):

20

OpenStudy (ash2326):

Good, so multiply the whole equation by 20

OpenStudy (ash2326):

And post what do you get?

OpenStudy (anonymous):

120t -t+240 greater than or egual to 12 This is where i am now

OpenStudy (ash2326):

uh-huh you made a little mistake, \[20 \times \frac{3}{10} (t+2)-20 \times\frac{t}{20}\ge20 \times\frac 35\] \[\cancel{20}2 \times \frac{3}{\cancel{10}} (t+2)-\cancel{20} \times\frac{t}{\cancel{20}}\ge\cancel{20}4 \times\frac 3{\cancel{5}}\] so we get \[2\times 3(t+2)-t\ge 4\times 3\] Do you get this?

OpenStudy (anonymous):

Oh.. I do now. i seperated the 3/10 from t+2 in the beginning

OpenStudy (ash2326):

Now simplify, and post what you get?

OpenStudy (anonymous):

T is greater than or equal to 0!?

OpenStudy (ash2326):

Yeah:D You are right:)

OpenStudy (ash2326):

Did you understand?

OpenStudy (anonymous):

Yayyyy! Thanks Ash! And thanks for the medal :) And yes i did I made a silly mistake.

OpenStudy (ash2326):

You're welcome:D

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