Тёмный

52 - Solving Word Problems Containing Percents - Examples 

Dan's Prealgebra Review
Подписаться 4 тыс.
Просмотров 143 тыс.
50% 1

This unit will show you how to:
- apply techniques for percent sentences to solution of word problems

Опубликовано:

 

23 дек 2012

Поделиться:

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист
Посмотреть позже
Комментарии : 43   
@johnnydavidsanchez3969
@johnnydavidsanchez3969 6 лет назад
Thank you for this. I was trying to make sense of ths by the rate, part and whole pyramid. This gave me a whole different way of looking at it and a better understanding of moving over decimals. Getting rid of a step!
@donterussell2925
@donterussell2925 7 лет назад
Dan ur the man. i was looking up asvab math word problems help and found myself here. u actually make it a bit easier yep I'm taking notes I'll give into usin ur method when i take the asvab
@Meep469
@Meep469 5 лет назад
did you pass the asvab
@manamana101
@manamana101 8 лет назад
Thank you soooo much. The drawing/ pie chart is what did it for us !!
@user-rv5ve8cf8p
@user-rv5ve8cf8p 7 лет назад
Thank you Dan for all these videos your the man !!!
@electrodan
@electrodan 7 лет назад
I'm always happy to know the videos have done some good. You're welcome. Dan
@theophilejulien204
@theophilejulien204 6 лет назад
thank you for helping out. l am studying for the Ged test.
@suraprod6420
@suraprod6420 Год назад
Thank you much for sharing your knowledge and efforts Very informative and easy to follow
@blushing...7922
@blushing...7922 Год назад
Your explanation is very clear and easy to understand!
@dansmathreview
@dansmathreview Год назад
Glad it was helpful!
@electrodan
@electrodan 5 лет назад
Hi Naida, Before answering completely I'll give you some hints. Let w be the wages for this year, write the expression for 3/4 of that [of usually means multiply]. "More than" means add. 350. That should be equal to next year's salary. Give that a try. Dan
@immaculatanebe1973
@immaculatanebe1973 5 лет назад
👌👌
@abigailappiah7635
@abigailappiah7635 Год назад
I don't understand where did you get the 30 from
@ranjan1436
@ranjan1436 5 лет назад
You made a very simple one line maths look like Einstein's theory of relativity.
@muhammadadilrazi9231
@muhammadadilrazi9231 4 года назад
Thanks you helped me in my maths test
@StanfordSeniorCare
@StanfordSeniorCare 7 лет назад
Hello, Can I get copy for all of these.. I think It will better for me to read the explaination. I have test coming on Nov 18 . that was my last test to get my GEd. please help me thank you
@electrodan
@electrodan 7 лет назад
Hi Bhea, Unfortunately, there was no script as such. I just used the PowerPoint slides which I prepared as a guide for what I said. Sorry. The best prep you can do is to get a set of practice exams and try them as if they were the real thing. After you've finished a whole practice exam, grade it. Find problems you missed, read the solutions, then cover up each one and it try again without looking. Unlike other subjects you can't learn math well just by reading or in the case of these videos, just by listening. You need to work lots of problems. Best of luck on your GEd. exam, Dan
@peterpam11
@peterpam11 5 лет назад
Could you explain this: A company's growth is 13% for sixty years. I put aside $10 every week for sixty years. How much pretax money will I have in sixty years?
@electrodan
@electrodan 5 лет назад
You will need to give more information to complete the problem. How does the "company's" interest relate to your $10\week savings. Is it simple or compound interest? If compound, what interval is it compounded, yearly, monthly? D
@susanmahon4
@susanmahon4 2 года назад
HI Dan, can you walk me through? I'm giving you the problem and my answer but not sure... thanks Caso #1 Giuseppi's Pizza 🍕 had orders for $418.00 of Pizzas. The prices were $20 for a large pizzas, $14 for medium pizzas and $8 for a number of small pizzas was one more than twice the number of Med. Pizzas. ----------------------------- How many of each size of pizza were ordered? ‐---------------------------- Answer: How many of each SIZE pizzas were ordered? LG = 10 × $20 = 200 Med = 7 ×$14 = 98 Sm. = 15 × $8 = 120 200 + 98 +120 = 418 15 is one more than doble of numbers of med. Pizza.
@tball7496
@tball7496 2 года назад
I like your video , but slow it down for those who take a little longer to process. Thank you.
@dansmathreview
@dansmathreview Год назад
Noted!
@girlwednesday1970
@girlwednesday1970 7 лет назад
It's confusing. You don't explain why you are multiplying or dividing
@Saucyakld
@Saucyakld 6 лет назад
Well done Dan, remembered this from my school days. Take away as many zeros and multiply , so 2 x 40 is $80
@novapena2495
@novapena2495 7 лет назад
Hi Dan, I just wated you to know that up until now youre still able to help people all around the world. Cheers to that
@electrodan
@electrodan 7 лет назад
Thank you. Teachers always appreciate knowing that they're doing some good. Dan
@HeDDdy
@HeDDdy 6 лет назад
Thank you, Dr. Dan, for the informative and helpful videos.
@dansmathreview
@dansmathreview 6 лет назад
Hi Heather, I'm glad you found the videos useful. Dan
@theophilejulien204
@theophilejulien204 6 лет назад
thank you for helping out. l am studying for the Ged test.
@kennethblack1993
@kennethblack1993 10 лет назад
You are awesome Sir thank you so freaking much I watched all you're videos!
@rosisoberanis4004
@rosisoberanis4004 6 лет назад
thank you very much for the video, my granddaughter is in 6th grade and helped a lot
@cawthekid
@cawthekid 8 лет назад
you are a great teacher thank you so much for this tutorial I really appreciate it
@electrodan
@electrodan 8 лет назад
+Ann Gee You are welcome. Thanks for the positive feedback. Dan
@cawthekid
@cawthekid 8 лет назад
YW watching you as we speak
@electrodan
@electrodan 5 лет назад
The definition of percentage is 100 x the part / the whole. In this case the part is 3 and the whole is 485. Following the definition I would divide 3 by 485 which gives me .0062 as the decimal representation of the of the part / the whole. Then multiplying by 100 according to the definition of percent gives me .62%.
@naidaescala443
@naidaescala443 5 лет назад
can u solve my question whats the answer the wages of employee last year is 8561 .if it is 350 more than 3/4 of the wages this year what is the wages this year ??
@naidaescala443
@naidaescala443 5 лет назад
8561 = 3/4x + 350 8561× 4 + 350 × 4 ÷3x = 10948
@ChristoRJ876
@ChristoRJ876 7 лет назад
i dont get the 2nd ? with the bikes 0.0062 x 485 =3.007
@electrodan
@electrodan 7 лет назад
Your math is correct. But if you take a look at the the original problem it asks for the percentage of 3 of 485 bicycles. If we do the math 3/485 = 0.0061855670103092783505154639175257731958762886597938... so it looks like it makes sense to round the result off to .0062 which is a tiny bit higher. So if we then multiply the 485 by .0062 we'll get a result which is a tiny bit more than 3. This step is only to run the problem backwards to check on the reasonableness of our final result. When you do word problems the physical situation must be considered. Since we're dealing with whole bicycles the .007 can be ignored. Thanks for your question. It shows that you're really thinking about the problems. Dan
@ChristoRJ876
@ChristoRJ876 7 лет назад
Dan Davidson o ok, thanks for clearing that up.
@Stephen-lt1tp
@Stephen-lt1tp 6 лет назад
3/485 =6.18556701... Not 0.00618..
@irinasonkina5168
@irinasonkina5168 5 лет назад
This is right. 3x100%/485=0.6185=61.85% or 61.9%.
@peterpam11
@peterpam11 5 лет назад
Thank you for your reply, here's another and by the way this is an investment problem. If I invest forty dollars per week equivalent to $2,080 in savings per year into the same company for thirty years. How much pretax money will I have? I'm completely lost on both of these problems. If you can figure it out, please explain.. I'm giving the answer and maybe it'll help $610,322. How do they get this number?
Далее
54 - Simple Interest
26:41
Просмотров 14 тыс.
51 - Solving Percent Word Problems with Proportions
27:27
Send this to an artist… 😉 #shortsart
00:19
Просмотров 3,2 млн
Solving percentage problems using reading skills.wmv
7:53
53 - Percent of Increase and Decrease
25:48
Просмотров 20 тыс.
12 - Solving Word Problems 2 - More Difficult Problems
28:07
58 - Tables, Charts and Graphs
27:16
Просмотров 39 тыс.
Distance Word Problems: WP7 [fbt]
15:51
Просмотров 75 тыс.
Order of Operations
20:30
Просмотров 2,1 млн
easy system to solve word problems.wmv
7:26
Просмотров 1,3 млн