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whileloop, in can I skip class?
@whileloop@lemmy.world avatar

Someone’s not going to college.

DharmaCurious, in The panzer has spoken
@DharmaCurious@startrek.website avatar

WTF why did no one mention this to me when I was struggling with math as a kid?

BaronDoggystyleVonWoof,

Seriously, why didn’t anyone?! Would have made my life much easier.

match,
@match@pawb.social avatar

they absolutely taught you the commutative property and transitive property

bingbong,

Yeah but they clearly taught it poorly

Sludgeyy, (edited )

Easy way to do %

Say you want 6% of 45

Seems hard right?

1% of 45 is .45

.45 × 6 =

.4 × 6 = 2.4

.05 × 6 = .3

2.4 + .3 = 2.7

So 6% of 45 is 2.7

Extra:

Say you want an item that is 40 dollars and it is 20% off.

10% is 4 dollars.

20% is 8 dollars.

So item would be 32 dollars.

plz1,

that’s a shitload of lines of math to write out/work in your head. I learned percentages of x as: 6 * 45 / 100 = x (2.7) If you picture both as fractions, you multiply the opposite and then divide by the other number to get the missing one (x). Hopefully Lemmy renders this well…

6 x
100 45

The way I learned it was multiply diagonally and then divide by whatever is opposite diagonally to x.

thisfro, (edited )

They probably did, just not explicitly:

You could write (61/100)50 = 6(501/100)

It only uses the commutative property of multiplication and the fact that % is another way of writing 1/100.

Maybe also worth remembering that “x% of y” is just x/100*y

ikiru,

I’m confused again.

thisfro,

By what part?

Mewtwo,
@Mewtwo@lemmy.blahaj.zone avatar

I’m sorry but you have the big dumb

Ravi,

The word percent is exactly that per cent, which basically means parts of hundred. E.g. 10% are 10 of 100, or 60% are 60 of 100. You can also write this mathematically as 60/100 or 60÷100, which is 0.6.

Now in general: x% are x parts of 100 or x/100 or x÷100. If you want to calculate x% of y you just multiply it: y × x% = y × x ÷ 100.

Someasy,

This is one of those “maths is magical” moments, I guess.

Someasy,

Mathemagics.

capt_wolf, (edited )
@capt_wolf@lemmy.world avatar

I totally remember being taught this. It’s just way easier to break down percentages in terms of the nearest 1% or 10% times the number in the percent times the number you’re taking the percentage of. You don’t have to do the math for the 1 or 10 percentage as long as you remember that a 10% means move the decimal left once and 1% means move the decimal left twice. The rest is just basic multiplication.

40% of 59 = 10% of 59 times 4.

So…

4x59=236

or

(4x50=200) + (4x9=36)= 236

10% means move the decimal left once,

Therefore 40% of 59 is 23.6

With that you can easily do more complex percentages mentally like…

62% of 35 = 10% of 35 times 6 plus 1% of 35 times 2.

35x6=180+30=210 at 10% so 21

plus

35x2=60+10=70 at 1% so 0.7

Therefore 62% of 35 = 21.7

_cnt0,

While I get your sentiment, I’m always baffled how people fail to just memorize some basic formulas/equations and then just to plug and play:

1÷kⁿ = k⁻ⁿ

% = 1÷100 = 10⁻²

k×10ⁿ equals k with its floating point shifted by n to the right for positive n, or to the left for negative n

That’s really all one needs to know for the “problem” at hand. For your concrete example of “40% of 59” that would just be

59×40×10⁻²

Just solve that whatever way is easiest. I don’t get why people get panic-stricken when they see the % sign.

Feddinat0r, in The panzer has spoken

I read that now not for the first Time

I still dont believe it

bus_factor,

You can work it out yourself. 6% is the same as 6/100, so 6% of 50 is (6/100)*50. Then do some algebra and see if you can jiggle it to say (50/100)*6. Then replace 6 and 50 with Greek letters so it looks more convincing.

aksdb,

Nah, I prefer to treat my math problems like climate change. With denial.

Saber_is_dead,

jiggle it

aljigglebra

DharkStare, in The panzer has spoken

You could also do 6*50 and then divide by 100.

remotedev,

Why would I do that

altima_neo,
@altima_neo@lemmy.zip avatar

Yeah, that’s just more math

DharkStare, (edited )

In the meme example you wouldn’t, but if you were trying to figure out Something like 2% of 5, it’s easier to do (2 * 5)/100=0.1 then to do .02 * 5 or .05 * 2.

My comment was mainly pointing out that you can multiply those numbers in whatever order you want.

son_named_bort, in can I skip class?

At least the dad can’t see his son’s embarrassment.

Omega_Haxors, in Get in the ocea Fishji!
Doomsider, in Anti Homeless Architecture

Housing first is a proven strategy in dealing with homelessness. The fact that every state has not adopted these policies to help eliminate the homeless population shows this is more a cultural issue than a lack of housing.

According to the Census there are a lot more empty houses than homeless people. Let that sink in and you start to realize all is not what it seems.

Until someone is safe and has their basic needs met it is impossible to work on issues such as mental health and addiction.

The solution exists but it is going to take a lot of our time, money, and most importantly a cultural shift away from blaming people to accomplish it.

If we could fix our homelessness then we would show that we truly care about our citizens rather than just paying a lip service to our most vulnerable people.

pingveno,

According to the Census there are a lot more empty houses than homeless people. Let that sink in and you start to realize all is not what it seems.

This particular statistic needs to be handled carefully. There are problems with both its definition and its nature. Empty housing has a fairly broad definition that includes housing that is unfinished, in the middle of repairs, or unfit for habitation.

The nature of housing with relationship to homelessness depends a lot on where the homeless people are and where the housing is. Empty housing in towns and cities that are depopulating is unlikely to be all that useful. Simply taking people from cities with high levels of homelessness, ripping them out of their communities, and plopping them down into communities that other people are leaving is not a favor.

Also, you shouldn’t just warehouse unhoused people in whatever housing is available. Many of them have mental illnesses that need good access to mental health services, transit, and jobs. Just because they’re under a roof doesn’t mean the job is done. The housing should be tailored to the various populations that it will be serving.

Doomsider, (edited )

I encourage you to lookup up Housing First if you have not already. While it may be misleading to say there are 16 million vacant home to half a million homeless people (32 homes for every homeless person), for the reasons you mentioned, it is entirely possible house these people.

No one who knows about this issue is thinking about warehousing people. Like you said they need a stable place to live, access to services, transportation, and work when they are ready.

pingveno,

I’m familiar with Housing First. I mostly just didn’t want to see a misleading use of statistics left unchallenged. Statistics around housing are difficult to grasp, so I often see them used in a misleading way, usually unknowingly.

Take one statistic, the rental vacancy rate in my city, Portland. It has lately been around 4%. Given the number of homeless people in the city, that feels like a travesty. But when you start to do calculations, that turns out to be an average of 2 weeks every four years. If you have tenants moving out after four years, that’s barely enough time to do a few repairs, let the paint dry, and finding new tenants. What seemed like a loose market turns out to be a very tight market.

BudgetBandit, in i missed my true calling

Ah. Streamer.

saltnotsugar, in The panzer has spoken

69% of 420 is equal to 420% of 69.

ICastFist,
@ICastFist@programming.dev avatar

So, is 289.8 the magic, double “nice” number?

dditty, (edited )

Nice^2

drew_belloc, in The panzer has spoken
@drew_belloc@programming.dev avatar

Same energy as multiplication with 9, just take 1 from the right side and put it on the left

(09, 18, 27, 36, 45)

bobzilla,

Instructions unclear…

09, 108, 1107, 11106, 111105

gusVLZ,

Found the JavaScript developer

drew_belloc,
@drew_belloc@programming.dev avatar

Keep doing this until you get a binary number and then your pc can do the rest for you

GBU_28, (edited )

You can multiply by 9 on your fingers.

Hold hands out, fingers splayed, thumbs towards each other. 🙌

9*2 put your left ring finger down (the 2nd finger). Left of that is tens place, right of that is the ones place.

So 1 on the left, 8 on the right of the downed finger.

9*5 put the left thumb down (5th finger.) 4, 5. 45.

n0m4n,

The trick that I teach the shorter humanoids is to subtract 1 from the multiplier of 9, put that number in the 10s column, then complete the nine and put that in the 1s column.

Then we spent some time finding the pairs of numbers that make 9. 1+8. 2+7, 3+…7+2, 8+1. I have to be explicit in this part, or they will shortcut to 3, (use fingers to count to 9) uh 6? They usually learn it in a day or two. To get them to flash to instantly know their times tables takes longer.

RobertOwnageJunior,

Instructions unclear, thumb stuck in asshole.

GBU_28,

That’s numberwang

drew_belloc,
@drew_belloc@programming.dev avatar

Thank god i wasn’t the only one

heydo,

4 5 therefore 9

9 and 9 therefore 18

18 and 18 therefore 36

4 5 therefore 9

Z3R0C00l, in can I skip class?
@Z3R0C00l@artemis.camp avatar

Is his name Donald trump? Because he seems awfully proud of his.

ultra, in When the person you always knew was going to become a life coach achieves their final form

You should include the title in the meme, if it’s part of the meme

jennwiththesea,
@jennwiththesea@lemmy.world avatar

Yeah, I was exceptionally lazy this morning.

EatYouWell, in Possums are cool though.

I think your joint might be laced.

franklin, (edited )
@franklin@lemmy.world avatar

I think the racoons did it.

wurosh,

Thank you for the chuckle kind stranger

LarkinDePark,

Stinks of reddit.🤢

Smokeydope, in Anti Homeless Architecture
@Smokeydope@lemmy.world avatar

Spend some taxpayer money on renovating abandoned shopping malls into housing for the homeless

Stumblinbear, (edited )
@Stumblinbear@pawb.social avatar

Not exactly doable since living spaces legally must have egress windows, and shopping malls… Don’t really have many outer walls for that compared to the amount of space internally they have

torknorggren, in When the person you always knew was going to become a life coach achieves their final form

WTF is life coaching? Have a facebook acquaintance who did some class and calls herself one, after being a yoga instructor. Like–why would you take advice from a person of middling success? Is it just another MLM where people calling themselves life coaches teach other people to be life coaches so they can teach more life coaches?

Imgonnatrythis,

It’s the circle of life coach.

Track_Shovel,
@Track_Shovel@slrpnk.net avatar

Yo dawg I heard you like life coaches so we gave your life coach’s life coach a life coach.

the word coach is meaningless to me after tying that. It also looks too much like roach

Etienne_Dahu,

Life cockroach?

Track_Shovel,
@Track_Shovel@slrpnk.net avatar

skitters under fridge

bitsplease,

calling themselves life coaches teach other people to be life coaches so they can teach more life coaches?

This accounts for a lot of it - the rest is mostly just getting hired by people who are too broke to afford someone actually qualified, and drastically overstating your success up until that point (E.G. Say you were an Entrepreneur when you really just lost money on an MLM)

soloner,

Eh … I think MLMs are much worse than life coaches. At least life coaches do actually (usually) want to help people. They just aren’t therapists.

People who do MLMs are just greedy, stupid, or both.

I agree life coach is generally a dumb profession, but it is an actual, authentic profession unlike MLM.

Probably it’s more comparable to chiropractor vs physical therapy. But chiropractor can actually physically hurt you, so to me that’s worse than a life coach potentially giving bad advice.

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