Help How did my teacher come up with this answer?

[Solana_Psyche]

Hello, I'm just gonna ask about the math problem we lectured lately.

Hindi ko po talaga ma-gets yung screenshot na prinovide sa lecture namin sa probability and statistics. Not good in math talaga tbh.

Screenshot of our last lectured on probability and statistics.

Cleared version

Sa nakabilog, ask ko lang po bakit naging gan'to yung sagot? Thanks po sa sa-sagot.

 

[usagi122]

yun bang 3/2 tinutukoy mo?

 

[edgecraft]

Since given na yung value ng x, dun sa 2nd iteration, nireplace nya lahat ng x for its value. Then ni-simplify nya ang value 4/8 to 1/2, since the multiple 3 when expressed in fraction is 3/1, magiging 1/2 x 3/1 = 3/2.
In short, simplification ng fraction lang ginawa nya.

 

[Solana_Psyche]

Thanks for answering my 1st question p9! I have follow up question po, how about this po? Paano po nakuha yung 17/10?

Yes po

Yes po

yun bang 3/2 tinutukoy mo?

 

[edgecraft]

mali yata yang 17/10. sure ka ba na yan ang nilagay? Kung 32/18, sure na equal yan sa 16/9. Pero base sa given equation, dapat 16/9 lang ang sagot.

 

[Solana_Psyche]

Yes mali nga daw po. Thanks po for responses! Di po kase ako nakapasok kaya screenshots lang mayron ako.

mali yata yang 17/10. sure ka ba na yan ang nilagay? Kung 32/18, sure na equal yan sa 16/9. Pero base sa given equation, dapat 16/9 lang ang sagot.