Class of 2025 (2025 HSC CHAT) (39 Viewers)

[ManicPixie]

also guys on my life i’m studying i just lowkey hate the ypt app so just ignore my zero hours of study…

 

[quokka]

also guys on my life i’m studying i just lowkey hate the ypt app so just ignore my zero hours of study…

no same why does it say im not studying cuz i have music playing #haters

 

[haminifhei]

HI GUYS!!!! update me with everything, how is it going with exams? here to help with tips!

 

[lunaaaa4403]

omg i knew it was him

 

[C2H6O]

how tf do i do this shit

A master painter takes 4 hours to paint a wall and expects to be paid $45 per hour for his work. His apprentice takes 6 hours to paint the same sized wall and expects to be paid $20 per hour. How much will it cost to hire both the master painter and his apprentice to paint the wall together? 4 marks

theres more than 1 way to approach this question but the one id go with is

step 1, find both their respective speeds of painting per hour as a percentage of the wall per hour

Spoiler: reveal step

for the master painter
in 1 hour he paints 1/4 of the wall, ie 25% per hour, at $45 per hour
for the apprentice
in 1 hour he paints 1/6 of the wall, ie 16.67% per hour, at $20 per hour

step 2 find their combined rate of work/cost

Spoiler: reveal step

so in 1 hour of them both painting the wall, 25% + 16.67% = 41.67% of the wall painted per hour for $45 + $20 = $65 per hour
thus that is their combined rate of work

step 3 find the time they will take to finish the wall as a pair

Spoiler: reveal step

to paint 100% of the wall it will take 100%/41.67% per hour = 2.4 hours

step 4 find the cost

Spoiler: reveal solution

thus the cost is 2.4 hours * $65 per hour = $156

 

[watermelonenjoyer]

accidentally left my ypt timer on for 20 hours WHOOPS (okay it's not showing up thank goodness)

 

[watermelonenjoyer]

WHATT THAT'S SO COOL

omg I love little women!!

i'm SO SO SO hype idc that trials are in the middle of rehearsals and that the hsc starts 4 days after closing im so incredibly excited

 

[oml]

I’m going to dominate y’all on ypt today and kat alr has almost 5 hours crazy.. (not sleeping tn)

 

[aqwerty13402]

View attachment 48619
omg i knew it was him

WHY IS EVERYONE MODERATOR NOW. We are #INFERIOR

 

[harxs]

When do I get a promotion??

 

[lunaaaa4403]

WHY IS EVERYONE MODERATOR NOW. We are #INFERIOR

literally why am i being moderated by someone my own age. unhand me

 

[harxs]

isnt socialism like 14

 

[lunaaaa4403]

isnt socialism like 14

yea but thats like for decoration

 

[lunaaaa4403]

guys go on those tutoring posts and just start having convos they will disappear trust

 

[English hater]

guys go on those tutoring posts and just start having convos they will disappear trust

can u leak my chem exam pls

 

[tigerian]

literally why am i being moderated by someone my own age. unhand me

im probably moderated by someone whose age I can multiply by three

 

[tigerian]

can u leak my chem exam pls

if a chemistry exam is leaking will they need some chemistry to fix it ?

 

[English hater]

if a chemistry exam is leaking will they need some chemistry to fix it ?

im probably moderated by someone whose age I can multiply by three

joined in 06, ur so old, omd

 

[tigerian]

joined in 06, ur so old, omd

yes I was still teaching then

 

[English hater]

yes I was still teaching then

daymn, perchance, do u teach engineering studies, chem, 3 or 2u maths that u can leak the exams. Perchance?