[YOUTUBE]https://www.youtube.com/watch?feature=player_embedded&v=1LtBcfk1uHg#at=636[/YOUTUBE]

https://www.youtube.com/watch?feature=player%5Fembedded&v=1LtBcfk1uHg#at=636 <--since the video isn't working.



at 8:40 I see that you added a 1 in front of the 9.50 turning it into 1(9.50)+0.12(9.50) then the problem turns into 1.12 which you said you use the 1 to get 1.12, where where does the 1(9.50) go? and how did we get rid of it? Thanks for any help

I understand the first problem he gives pretty easy, but he uses different ways of solving problems to give students more than one way to solve. I got stuck on the problem last night and decided to wake up and give it a try and still curious on why he does the problem the way he does. I see he multiply by added a 1 in front of the first 9.50, and multiply the 0.12, but the 9.50 goes away and the other 9.50 stays ?

the last two problems are about the same, If you could watch the second one, and tell me why puts 1 in front of the problem and starts taking away numbers?

This post was edited by Quantummechanics on Jul 1 2013 05:34am

Bah ! 8 views in 20 minutes and nothing ..

guess I'll skip it until look back on it later. If I had FG I would be more than happy to pay for their help.

never watch youtube - spell your problem out and i might be able to help

The 1(9.50) is combined in the 1.12.

Before it was 1*9.50+0.12*9.50. Because both the terms have 9.50, you can combine the multipliers: (1+0.12)*9.50.

You can't think it as if other one stays and other one disappears. Practically neither of them "stay", the two "old" 9.50 formed completely "new" 9.50

Pm me if you are still confused and I'll try to explain it better.

This post was edited by Dorieus on Jul 1 2013 06:09am

An employee at a store is currently paid $9.50 per hour. If she works a full year she gets a 12% pay rise. What will her new hourly rate be after the raise?



The 1(9.50) is combined in the 1.12.


ok so the problem is 9.50+12%(9.50)

so then it turns into 1(9.50)+0.12(9.50)

so why did he multiply it by 1? I know why it works when you multiply it the actual problem in my brain turns into 9.50+1.12(9.50) ? or maybe 9.50+1.12+(9.50) ? See this is where I'm confused.

regardless of the actual pay she gets
1 x in the first year
1.12 x in the second year and assuming another 12% increase
1.2544 x in the third year

which are the factors you multiply the hourly rate with
or broken down 1x9.50 + .12x9.50

it is very helpful in maths to be very clear

ps: without good maths there is no 'Quantummechanics'

This post was edited by brmv on Jul 1 2013 10:11am

I'm trying to break the problem down so I can understand it.

9.50+(12%)9.50

1(9.50)+0.12(9.50)

1.12(9.50)


how does he get the 1.12(9.50) ??? and he puts a 1 in front of the 9.50 to multiply it and gets rid of the first 9.50, but the last one remains? There's something I'm missing on understanding this problem. =_=

This is basic factorization.

Today I went to the marketplace and I bought 2 apples and I bought 3 apples.

Today I went to the marketplace and I bought ( 2 apples and 3 apples).

Today I went to the marketplace and I bought ( 2 and 3 ) apples.

Today I went to the marketplace and I bought 5 apples.