Subscribe for more math videos! Set up and solve a proportion to find the whole if given a percent. A percent is a ratio that is always out of 100.
Пікірлер: 545
@IRTG20065 жыл бұрын
A quicker way to do this is: 1) Divide 45 by 18 (Giving you 2.5) 2)Multiply 2.5 by 100 (Giving you 250) This only takes up to a minute at most to do.
@j.r.14265 жыл бұрын
Fast
@unjaded25 жыл бұрын
Exactly she made this super difficult and that marker scratching on that paper with super annoying
@trex91945 жыл бұрын
@@unjaded2 you forgot to say "point of privilege".
@BajWonderWorld5 жыл бұрын
hmm good
@rodolfojude49025 жыл бұрын
IRTG2006 thank you
@ithe26504 жыл бұрын
Can’t lie but I think I actually learned something
@jencyshaji12934 жыл бұрын
Class8 kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@jencyshaji12934 жыл бұрын
kzbin.info/www/bejne/ppnZn3mrmpKCgKs
@HarveyPaul0074 жыл бұрын
That was the most complicated explanation of a complicated solution. I would have divided 45 by 18 and then multiplied by 100.
@nickgill66394 жыл бұрын
It is easy we can find the whole Or total by multiplying it by 100and dividing it by percentage
@jencyshaji12934 жыл бұрын
Class8 kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@HarveyPaul0073 жыл бұрын
@Hannah Lupher Congratulations on having 1 brain cell.
@boogiehighroller3 жыл бұрын
My 4th grade teacher ruined my excitement to learn math.. I always did the bare minimum to just to pass.. I’m not bad at math but I want to be better.
@coyotedamien7 ай бұрын
hi! you may be older than me now but i can help you
@webadage5 жыл бұрын
Why wouldn't it be a simple algebra problem? 45 = .18x x = 45 / .18 x = 250
@mentor60595 жыл бұрын
It is a big problem in this country. Teachers are not so creative but make students confused.
@MrMooagi9774 жыл бұрын
Wtf is the difference???
@adrianbalmes57044 жыл бұрын
Yessss, but if she didnt do It this way un 2:24 paralelogram not exist. Thus not know she methodical and organized space thought.
@RowenBarbary4 жыл бұрын
That's how I did it!
@jencyshaji12934 жыл бұрын
Class8 kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@yourmathtutorvids4 жыл бұрын
I’ve been looking up different math youtubers for research on my own channel and glad I found your videos! Your explanations are so clear at at a good pace
@LearnMathWithMsM4 жыл бұрын
Awesome! Thank you!
@jencyshaji12934 жыл бұрын
Class8 kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@AB-lj9lr4 жыл бұрын
Divide 45 by 18 to work out 1% and then multiply it by 100 to work out 100%. 45/18= 2.5 1% = 2.5 2.5 x 100 = 250 100% = 250
@anannyachakraborty.48445 жыл бұрын
45 =18%x. 45=0.18x. 45÷0.18=x. x=4500÷18. x=250. Also kind of mind math. Your method is also correct. Nice video. Thank you for the video.
@lisamccray64814 жыл бұрын
Shortcuts are cool but they really only work because there's an underlying appreciation for the long way. The people who are always belly aching about the long way of learning get on my nerves. Nothing is the short way. For example, we run in and grab something out of the store. But the manufacturer is rich because we "ain't got all day." The teacher here is like the manufacturer. She lays the foundation. Like what good is a house standing on a dirt floor? What good is a house of cards? Once you thoroughly get the concept, then you are free to use Shortcuts forever more. If you can't say something nice, move along. This teacher freely shared her knowledge. She didn't have to. She established a foundation so that the shortcut teacher will seem to be the hero. That shortcut only solves one style of the problems. You will still have to understand the rest of the techniques. I wouldn't want the shortcut guy as my accountant. I'd want the stickler. So. I celebrate this teacher. Thank you. We owe the world to "nerds," not to insulting jerks with half a brain. So, again, just saying, you are very appreciated. Party time to you. 😎
@LearnMathWithMsM4 жыл бұрын
Thank you!!
@saaahil14 жыл бұрын
I don't know why the hell this was in my recommendation and why I have watched this till the end 🤔🤔🤔🤔
@annamdevulavenkatasrinivas51344 жыл бұрын
Mee too 😂😂
@sailoagencies36374 жыл бұрын
Same
@jencyshaji12934 жыл бұрын
Class8 kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@TheAustrianAnimations873 жыл бұрын
I also got this video recommended.
@mathfullyexplained3 жыл бұрын
Try my KZbin channel mathfullyexplained. It has percent.
@candieexpress44804 жыл бұрын
Yes! there may be different ways of working out the problem, but I really prefer this method. The method used brakes down the problem and refreshes your memory; just in case you forgot about equations or long divisions. Thanks, works for me, and many others.
@jencyshaji12934 жыл бұрын
Class8 kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@JoJo-ri4xx5 жыл бұрын
Easier way was 18% = 45 1% = 45/18 = 2.5 100% = 2.5 x 100 = 250 Why go such an unnecessary long procedure ... ??
@madhurichamala27455 жыл бұрын
Superb 👍Jo Jo .thanq
@lifewithwheels474 жыл бұрын
WTH man X value is always 1know this 1st ... Instead 1 can take x instead x can take 1 ... Think ok..
@debd79884 жыл бұрын
Agreed Jo Jo, I solved it that way. I see now why so many children are complaining about math in school. It must be a policy to frustrate them. 😃
@jonathansalguero45114 жыл бұрын
This is really helpful, I didn't pass my math tests because of one problem... it say.. 5% of what number is 14.? Now because of you I understand that I miss that important 0 at the end. Thanks!
@jencyshaji12934 жыл бұрын
Class8 kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@jennieowens26074 жыл бұрын
Cross multiply and divide... I’m currently teaching my daughter a 6th grader who says my method is much easy and they get to the answer quicker. 45x100=4500 18/4500=250
@jencyshaji12934 жыл бұрын
Class8 kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@unjaded25 жыл бұрын
She must have went to public school. Let's make everything 8 times harder than it should be
@dmur6125 жыл бұрын
unjaded2 Exactly what I was thinking. However, this way still beats the hell out of common core...
@hamadadonya5 жыл бұрын
I'm from Egypt I have anew way to answer More easy and fast I find it with myself
@arzzz50064 жыл бұрын
@@hamadadonya what is it please tell me or the video .I'm from egypt too and talk arabic
@mebeingrandom10924 жыл бұрын
i went to a private school the 3rd most expensive school in my country and was taught grade three level in the 5th grade I now go to a public school and learn on a shanghai level of mathematics (this is in south africa)
@elianasoto78444 жыл бұрын
Welcome to public school!!!
@galaxyguardian58834 жыл бұрын
Let the number be X. 18% of X=45 18/100 × (X) = 45 X= 45×100 / 18 X= 250. Ans. This method is also simple.
@coachjones61042 жыл бұрын
45 divided by .18 equal 250. Just change the percent to a decimal and divide
@yovex4252 жыл бұрын
This helped better than my teacher explaining to me
@hasithi34164 жыл бұрын
Omg 😮 i scrolled down, found world 🌎 is fully of brilliant people ...😍😍solved this less than 1 minute 🙆♀️🤩
@jencyshaji12934 жыл бұрын
Class 8maths kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@everythingandanything30454 жыл бұрын
Great video. Though you confirmed there’s other ways to do this sum, I would like to commend your explanation and method for doing the sun this particular way. You’ve got the teaching nack! Wish you were my maths teacher !
@jencyshaji12934 жыл бұрын
Class 8maths kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@Andrea-pt5iv7 жыл бұрын
Omg thanks!!! You explain it so much like my teacher!!! I hope I pass math this quarter!!! I also subscribed!!!
@Zeel_20034 жыл бұрын
Easiest way to solve this is just multiple 45 x 100 = 4,500 Now divide 4,500 ÷ 18 = 250
@astijux27487 жыл бұрын
She did something in 5 mins which takes me 10 seconds guys just do 48 divided by 18 and then times it by 100 theres your answer
@jessicataylor23307 жыл бұрын
Thats because she has to explain it first...
@angeldavidrevilla88946 жыл бұрын
Astijux 27 se ve que eres bien wey En tu forma de expresar Antes que nada ella esta enseñando y no esta presumiendo 😠
@jomsgaming78236 жыл бұрын
Astijux 27 how did u get 48???
@ethanr95145 жыл бұрын
Astijux 27 thank you.
@alangreen15254 жыл бұрын
And you got the wrong answer
@MsRuckus846 жыл бұрын
Thank you so much for breaking this down so I could understand why you are doing every step. It really helps in creating a foundation for solving future problems. Subscribed!
@nemehiareddy76125 жыл бұрын
Thank you mam
@mothiurNCL Жыл бұрын
Clearly put. Precisely what learners need - the reasons why at every step.
@nuriyaarevalo28663 жыл бұрын
Thanks for your help some comments showed a simpilar way but you showed me in a way that helps me to understand!
@HiMyNameIs0114 жыл бұрын
Used cross multiplication, 45*100/18=250.
@avawhitmeyer53916 жыл бұрын
Omg you are a life saver I have a test on Tuesday
@stuffwithvioletblossom45875 жыл бұрын
Lol same
@malikmumtazz63334 жыл бұрын
Appreciatable,I don't believe what you believes in math, because math is a confusing subject for a lot of people even for me, but I believe in you.yes you can.
@tofu19854 жыл бұрын
Try the fraction is over of and percent over 100. Every sentence has the word is and of in it. If there is a percent number write that over 100. If a number appears before the word is...u write that above the number that comes after of. Two numbers will be diagonal. Multiply those two and divide by the remaining number
@TapasBaripada4 жыл бұрын
Fundamentally the concept of part/whole is a sound one. As far as calculation is concerned no need to multiply 45 and 100. Rather break 18 into 9 and 2 so that 9 divides 45 and 2 divides 100. 50×5 is 250. Mentally we may do it quickly but fundamental principle is do-undo.
@CITIZEN_X_4165 жыл бұрын
What if I divided 45 by 18 = 2.5 and then multiply 2.5 by 100 = 250. Did I do it wrong?
@ashleyzamora47112 жыл бұрын
thank you I am studying for my accuplacer and have forgotten a lot lol. THank you for taking your time to explain it!
@kathireshs6644 жыл бұрын
18x/100=45 X=4500/18 X=250
@louisromao71835 жыл бұрын
Best to keep it simple. 45 is 18 percent of what number? 45 = 0.18x See how the sentence and the expression are related?
@haofaindigenouscanineoftan4616 жыл бұрын
Although the process is long it is very helpful. Thank you Maria
@ericgrosvenor674 жыл бұрын
Good stuff. I’m not in school anymore but I enjoy learning. Math is important even though some don’t think so
@guts65544 жыл бұрын
I don't know why is this in my recommended but it did sure helped me lmao
@FEN4234 жыл бұрын
Google listens thru ur phone all d time
@mathfullyexplained3 жыл бұрын
Try my KZbin channel mathfullyexplained
@raiden9arpa5 жыл бұрын
I wish I'm good in Math like you Mamm, Thanks.
@mathfullyexplained3 жыл бұрын
Try my KZbin channel mathfullyexplained. It has percent and more units.
@DSATwithZidan4 жыл бұрын
You just make it more harder than it should be!Just devide 45 by 18,you will get 2.5,now multiply 2.5 by 100...easily you get the result!250!
@Mikdeelow4 жыл бұрын
if you understand that 18/100 or 18% is = to the decimal 0.18, the 45/0.18=250.
@cassicorey25454 жыл бұрын
TYSM! I've tried watching other vids but this one actually got me to understand what i'm supposed to be doing! thx a 1000!!
@stuffwithvioletblossom45875 жыл бұрын
Who here is 2019? Im so late but this was very useful thank you!
@mknss91864 жыл бұрын
Im later than you...its 2020
@Khiven_2 жыл бұрын
Oh my thank you so much I need this for my research Interpretation of the Data
@lemontier2 жыл бұрын
Thank you! Clear and to the point. Very well done.
@mogiogiogi6 жыл бұрын
thanks! I managed to finish my math with this ^^
@MalamIbnMalam4 жыл бұрын
Just use simple algebra 1) .18x=45 2) x=(45/.18) 3) x=250
@mathfullyexplained3 жыл бұрын
Try my KZbin channel mathfullyexplained
@dkv1201 Жыл бұрын
Q: What is 45% of X ? Ans: 45X/100 Q: Y is 45% of which number? Ans: 100Y/45 All that cross multiplication has made me cross. She has over simplified the solution.
@paulettebikim78834 жыл бұрын
Very simple way ever. Thx
@franktrappe49164 жыл бұрын
45 x 100 = 4500 ÷ 18 = 250
@renostubbs85044 жыл бұрын
Thanks a million for making that so simple,I totally understood that problem.
@jencyshaji12934 жыл бұрын
Class 8maths kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@michaelvaldez9004 жыл бұрын
Don't forget to reduce up and down by 2 and left and right by 9 before cross multiplication, easy numbers for the kids 5 x 50 is 250.
@Fish23k3 жыл бұрын
U saved my life thanks.
@Lava19644 жыл бұрын
I was taught in the seventh grade to cross-multiply, which quickly results in 4500 divided by 18. All this hyper-analysis is unnecessary.
@jencyshaji12934 жыл бұрын
Class 8maths kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@UpulMathsacademy4 жыл бұрын
Good work Wish you all the best,..
@JBV3334 жыл бұрын
OMG she has done it in really hard way 45 x 100/18= 250 is the answer
@nakshbhonsle56886 жыл бұрын
Thanks for this nyc video it helps me a lot
@howlingmedia43545 жыл бұрын
Use the percent circle on that
@slimgirls784 жыл бұрын
Thank you.
@kevpinney4 жыл бұрын
Thank you for showing all of the steps! :)
@sophierhu87804 жыл бұрын
18% of t = 45 18% to decimal = .18 .18t=45 t=45/.18 t=250
@emilia73484 жыл бұрын
I learned this in five minutes then I did fifty minutes in class.
@ayantayyab72595 жыл бұрын
Let the no. be x According to the problem 18% of x = 45 18/100 × x = 45 x = 45×100/18 x=5×100/2 x= 250 It is so easy....Who finds it difficult ?
@domingseguin61565 жыл бұрын
Simply divide 45/.18=250
@regionaldirectorlarkana7184 жыл бұрын
What u says for this way 45*100/18= 250 because in reverse of average we multiply by 100 and divided by percentage
@jeffreylieberman16683 жыл бұрын
Take the main number, add two zeros, divide that by the percentage... Is that the correct formula?
@emojichhakcchhuak28806 жыл бұрын
18x = 4500 x = 4500÷ 18 x = 250
@tingtingx85 жыл бұрын
OMG YOU DESERVED A LIKE AN AN SUBSCRRIBER THIS HELPED SO MUCH THANK YOU SO MUCH!
@l_nataly_b44226 жыл бұрын
Thank you so much. I get it now. Thanks so much for teaching us percent proration. Its really helpful:)
@jencyshaji12934 жыл бұрын
Class 8maths kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@christineacabo33274 жыл бұрын
A simple trick Just translate the sentence into symbols. "is" is equivalent to equals (=) "of" is equivalent to multiplication (x) Let n be the unknown number 45 is 18% of what number? 45 = 18% x n 45 = .18n 250=n n=250
@jimtownsend78994 жыл бұрын
I did it this way: 100 divided by 18 = 5.555555555555556. Multiply that times 45 = 250. Boom.
@Feediza4 жыл бұрын
45 = .18x X= 45/.18 To do this you know it's 2 to begin with since 2x 18 is 36, you're left with 9 which is .5 then multiply by 100 to get 250..
@akhilattractsu71324 жыл бұрын
One of the worst way doing it 1)is/of × 100 = solution 2)18-100,36-200,45-250
@williambunter33114 жыл бұрын
If 18% is 45, then 1% is 45divided by 18 which = 5 divided by 2. Then multiply by 100 which gives 500 divided by 2 which =250. easy to do in your head.
@lolakapuri4 жыл бұрын
Another simple way I learned is 45 is 18 , x is 100. Join diagnolly and solve for x.
@MrBappa20115 жыл бұрын
Quickest and easiest way is by applying unitary method.... 18% represents.=45 1%....=45/18 100%.....=45/18×100=250
@lawmakhawlhring19434 жыл бұрын
I just love how you wrote the number 8
@Mr.Mote.4 жыл бұрын
Wonderful explanation 💖👨👧
@mathfullyexplained3 жыл бұрын
Try channel mathfullyexplained
@jeevankumar874 жыл бұрын
Shortcut : 45-18% , x-100% 100/18×45=250
@kim_m_l_d15394 жыл бұрын
TYSM💛(무나라사) FOR MAKING ME UNDERSTAND
@jencyshaji12934 жыл бұрын
Class8 kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@jencyshaji12934 жыл бұрын
Class8 kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@MohitJouhari4 жыл бұрын
Americans: thats a cool trick there. Asians: who does it that way. I did it in my mind and simultaneously calculated till 100th decimal of pi.
@jencyshaji12934 жыл бұрын
Class 8maths kzbin.info/www/bejne/ZqnUoH1qlNGfb6c
@nowlwane96234 жыл бұрын
Or just factor out the 2 x 9 and multiply 50 x 5 and forget the long division
@ebear40156 жыл бұрын
Is over of is easier to use rather than parts and whole because is and of are written in the equation. Is over of. Is. 45. 18% _. -. - Of x. 100. 45×100÷18
@slowandsteady63204 жыл бұрын
Thanks for the lesson.
@jmgabiola4 жыл бұрын
250 is the answer
@akizaizinski64546 жыл бұрын
Will this work for every problem like that? I am asking this because, I’ve been using the multiplication. Say, 75% x 24. I would move the decimal for 75 and make it .75, multiply by 24 and I got 1800, which would just be 18 I believe and the answer was 32, when it told me to find what number that percentage went to. So, I began getting problems right and wrong, I need something that will always make it right. I then tried it in fraction way. . . 75/100x 24/1, or in the original problem, it would have been 24/1x75/100. But, I don’t know what it was but the answer was wrong frequently. And even if I did get it right, that would have been after hours of reducing. I can reduce, but I get so confused when it’s a big number. So basically, what I’m asking is: will this give me the correct answer everytime?
@19RichieJCook5 жыл бұрын
Yikkkkkes, cross multiple and divide. Piece of 🎂 45 * 100 = 4,500 4,500 / 18 = 250 Done son
@leticruz11936 жыл бұрын
Soooo helpful
@waneezashakoor6505 жыл бұрын
Excellent way to solve the problem and very easy way to teach some one I really appreciate thanks a lot 👍👍
@karamashour15872 жыл бұрын
TYSM this helped a lot! Just a question though, is there a faster method to do this?
@aaronsharp88573 жыл бұрын
I just divided 45 by 0.18 is what I'm doing wrong is not showing my work?
@izzygee22164 жыл бұрын
Great explanation!
@anujarya68705 жыл бұрын
It's so long X*18/100=45 X=45*100/18 X= 5*50 X=250
@mathfullyexplained3 жыл бұрын
Try my KZbin channel mathfullyexplained
@No1xas4 жыл бұрын
I wish I knew how to fucking find the percent
@No1xas4 жыл бұрын
Ikr
@liamjenkins824 жыл бұрын
My biggest problem with this isn't the maths but the point of the question. It's just not practical. In order for someone to know that this is a certain percent of something they must already know the total before asking! Making it a question for the sake of a question