52 - Solving Word Problems Containing Percents - Examples

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Dan's Prealgebra Review

Dan's Prealgebra Review

Күн бұрын

Пікірлер: 43
@donterussell2925
@donterussell2925 8 жыл бұрын
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 6 жыл бұрын
did you pass the asvab
@user-rv5ve8cf8p
@user-rv5ve8cf8p 8 жыл бұрын
Thank you Dan for all these videos your the man !!!
@electrodan
@electrodan 8 жыл бұрын
I'm always happy to know the videos have done some good. You're welcome. Dan
@novapena2495
@novapena2495 7 жыл бұрын
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 жыл бұрын
Thank you. Teachers always appreciate knowing that they're doing some good. Dan
@suraprod6420
@suraprod6420 2 жыл бұрын
Thank you much for sharing your knowledge and efforts Very informative and easy to follow
@manamana101
@manamana101 8 жыл бұрын
Thank you soooo much. The drawing/ pie chart is what did it for us !!
@johnnydavidsanchez3969
@johnnydavidsanchez3969 6 жыл бұрын
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!
@berries_123
@berries_123 2 жыл бұрын
Your explanation is very clear and easy to understand!
@dansmathreview
@dansmathreview 2 жыл бұрын
Glad it was helpful!
@HeDDdy
@HeDDdy 6 жыл бұрын
Thank you, Dr. Dan, for the informative and helpful videos.
@dansmathreview
@dansmathreview 6 жыл бұрын
Hi Heather, I'm glad you found the videos useful. Dan
@Saucyakld
@Saucyakld 7 жыл бұрын
Well done Dan, remembered this from my school days. Take away as many zeros and multiply , so 2 x 40 is $80
@theophilejulien204
@theophilejulien204 7 жыл бұрын
thank you for helping out. l am studying for the Ged test.
@abigailappiah7635
@abigailappiah7635 2 жыл бұрын
I don't understand where did you get the 30 from
@rosisoberanis4004
@rosisoberanis4004 7 жыл бұрын
thank you very much for the video, my granddaughter is in 6th grade and helped a lot
@cawthekid
@cawthekid 9 жыл бұрын
you are a great teacher thank you so much for this tutorial I really appreciate it
@electrodan
@electrodan 9 жыл бұрын
+Ann Gee You are welcome. Thanks for the positive feedback. Dan
@cawthekid
@cawthekid 9 жыл бұрын
YW watching you as we speak
@kennethblack1993
@kennethblack1993 11 жыл бұрын
You are awesome Sir thank you so freaking much I watched all you're videos!
@electrodan
@electrodan 6 жыл бұрын
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 жыл бұрын
👌👌
@electrodan
@electrodan 6 жыл бұрын
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%.
@muhammadadilrazi9231
@muhammadadilrazi9231 5 жыл бұрын
Thanks you helped me in my maths test
@ranjan1436
@ranjan1436 5 жыл бұрын
You made a very simple one line maths look like Einstein's theory of relativity.
@naidaescala443
@naidaescala443 6 жыл бұрын
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 6 жыл бұрын
8561 = 3/4x + 350 8561× 4 + 350 × 4 ÷3x = 10948
@tball7496
@tball7496 2 жыл бұрын
I like your video , but slow it down for those who take a little longer to process. Thank you.
@dansmathreview
@dansmathreview 2 жыл бұрын
Noted!
@ChristoRJ876
@ChristoRJ876 8 жыл бұрын
i dont get the 2nd ? with the bikes 0.0062 x 485 =3.007
@electrodan
@electrodan 8 жыл бұрын
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 8 жыл бұрын
Dan Davidson o ok, thanks for clearing that up.
@Stephen-lt1tp
@Stephen-lt1tp 7 жыл бұрын
3/485 =6.18556701... Not 0.00618..
@irinasonkina5168
@irinasonkina5168 6 жыл бұрын
This is right. 3x100%/485=0.6185=61.85% or 61.9%.
@susanmahon4
@susanmahon4 3 жыл бұрын
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.
@StanfordSeniorCare
@StanfordSeniorCare 8 жыл бұрын
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 8 жыл бұрын
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 жыл бұрын
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?
@peterpam11
@peterpam11 5 жыл бұрын
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 жыл бұрын
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
@girlwednesday1970
@girlwednesday1970 8 жыл бұрын
It's confusing. You don't explain why you are multiplying or dividing
@theophilejulien204
@theophilejulien204 7 жыл бұрын
thank you for helping out. l am studying for the Ged test.
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