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Posted: 11/3/2009 1:22:12 PM EST
4. The sales price of a car is $12,590, which is 20% off the original price. What is the original price?
A. $14,310.40 B. $14,990.90 C. $15,290.70 D. $15,737.50 E. $16,935.80 


The answer is D.
$15,737.50 


The current price is 80% of the original price. So:
Current price divided by 80 = 1% of the original price. Multiply that by 100. 

For a wounded man shall say to his assailant, "If I live, I will kill you. If I die, you are forgiven." Such is the rule of honor.

1.2 times the sale price. dang
Yeah, fail :Been a long day .8P=sale price 


Let's make variable P = original Price
P x .8 = $12,590 P = $15,737.50 


Divide 12590 by four and you get 3147.5
Add the two together and you get $15737.50 


Originally Posted By m4sarecool:
1.2 times the sale price. dang Fail. Go back to school. 


Originally Posted By paul_the_welder: 4. The sales price of a car is $12,590, which is 20% off the original price. What is the original price? A. $14,310.40 B. $14,990.90 C. $15,290.70 D. $15,737.50 E. $16,935.80 Lots of ways of explaining this but here is how I would do it: Original price is 100% Sales price is 20% off = 80% $12,590 = 80% of original price $12,590 / 80% = original price $15,737.50 = original price 

â€śThe trouble with socialism is that you eventually run out of other peopleâ€™s money.â€ť  Margaret Thatcher
Proud Member of Ranstad's Militia كاف 
double tap...



Originally Posted By hcook:
Let's make variable P = original Price P x .8 = $12,590 P = $15,737.50 This. 


lol, that is like 4th grade math



Originally Posted By Bugalaman:
lol, that is like 4th grade math yep 


ok ,try this one
2. If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together? A. 2 hours and 24 minutes B. 3 hours and 12 minutes C. 3 hours and 44 minutes D. 4 hours and 10 minutes E. 4 hours and 33 minutes 


A. 2 hrs 24 minutes.



Originally Posted By ChuckD05:
A. 2 hrs 24 minutes. Ok, how did you get the answer 


Originally Posted By ChuckD05:
A. 2 hrs 24 minutes. That's not correct. The problem does not take into account the time taken by the women yelling at the man for doing it wrong. 


Originally Posted By paul_the_welder:
ok ,try this one 2. If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together? A. 2 hours and 24 minutes B. 3 hours and 12 minutes C. 3 hours and 44 minutes D. 4 hours and 10 minutes E. 4 hours and 33 minutes Sally & John are painting the same house. It takes Sally 4 hours to paint that house. It takes John 6 hours to paint that same house. Lets now divide those numbers by two, if we equally divide the work. Sallys time is now 2 hours, to Johns 3 hours. Sally isn't going to sit there when she reaches the halfway point so the work is equal. Therefore, Sally will paint over 50% of the house. The rate at which she works is faster than John. John would have painted his half in 3 hours, except for the fact that after Sally was finished with her half, she kept working to decrease the amount of time John has to paint. This gives us the only logical answer in the above bank. 2 Hours and 24 minutes. 


Originally Posted By paul_the_welder:
ok ,try this one 2. If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together? A. 2 hours and 24 minutes B. 3 hours and 12 minutes C. 3 hours and 44 minutes D. 4 hours and 10 minutes E. 4 hours and 33 minutes Do you have any pics of Sally? This makes a huge difference. 

Posted By 455SD: Newspaper, man. Newspaper.
Posted By Napoleon_Tanerite: meh... gives my garage floor that well used look. Posted By Johnny_Reno: That's true. It's very difficult to throw your garage floor down the driveway. 
well I got 2 1/2. I thought there was some super technical way to come up with 2:24. thanks! Originally Posted By ChuckD05:
Originally Posted By paul_the_welder:
ok ,try this one 2. If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together? A. 2 hours and 24 minutes B. 3 hours and 12 minutes C. 3 hours and 44 minutes D. 4 hours and 10 minutes E. 4 hours and 33 minutes Sally & John are painting the same house. It takes Sally 4 hours to paint that house. It takes John 6 hours to paint that same house. Lets now divide those numbers by two, if we equally divide the work. Sallys time is now 2 hours, to Johns 3 hours. Sally isn't going to sit there when she reaches the halfway point so the work is equal. Therefore, Sally will paint over 50% of the house. The rate at which she works is faster than John. John would have painted his half in 3 hours, except for the fact that after Sally was finished with her half, she kept working to decrease the amount of time John has to paint. This gives us the only logical answer in the above bank. 2 Hours and 24 minutes. 


X = number of hours it would take Sally and John to paint the house together.
In one hour they would, combined, paint 1/X of the house. In one hour Sally can paint 1/4 of the house. In one hour John can paint 1/6 of the house. Therefore the equation would look like this: 1/4 + 1/6 = 1/X or, 3/12 + 2/12 = 1/X 5/12 = 1/X Now, times both sides by 12X 12X* (5/12) = (1/X)* 12X This leaves you with: 5X = 12 or 2.4 So, the answer is 2.4 hours, or 2 hours, 24 minutes. 


here is how you do it
Use a number for the area of the house, i chose 100. 100/4 hr = 25 100/6 hr= 16.6666666666 Add the two rates together to get a combined rate 41.6666666666666666666 divide the area of the house by the new rate 100/41.66666=2.40 You then need to change the .40 to be based on 60 minutes in an hour. So 60 minutes *.40=24 minutes Thus the answer of 2 hours and 24 minutes. Edit: booo I was too slow. 


Originally Posted By schapman43:
Originally Posted By ChuckD05:
A. 2 hrs 24 minutes. That's not correct. The problem does not take into account the time taken by the women yelling at the man for doing it wrong. Now thats fuckin' funny! 

I believe in ammunition....

Sally paints 100% of a house in 240 minutes and John paints 100% of a house in 360 minutes.
Sally paints 10/24 % of the house every minute. John paints 10/36 % of the house every minute. Between the two of them they can paint 25/36 % of the house every minute. (adding the fractions together and reducing... (10/24 x 3 = 30/72) + (10/36 x 2 = 20/72) = 50/72 = 25/36 ) 100 x 36 / 25 = 144 minutes to paint the house. 144 minutes = 2 hours 24 minutes. 

â€śThe trouble with socialism is that you eventually run out of other peopleâ€™s money.â€ť  Margaret Thatcher
Proud Member of Ranstad's Militia كاف 
Sally paints .25 of the house each hour (1/4)
John paints .167 of the house each hour (1/6) Together, they paint .417 of the house each hour 1/.417 = 2.398 hours for both of them to paint the entire house together converting 2.398 hours into hours:minutes, you get 2:24 


Everyone except RedFalconBill an I get a F for rounding errors.... teachers are always assholes about "show me your calculations" to make sure you aren't just getting an approximate answer and choosing the multiple choice answer that is closest.


â€śThe trouble with socialism is that you eventually run out of other peopleâ€™s money.â€ť  Margaret Thatcher
Proud Member of Ranstad's Militia كاف 
42...always


Μολὼν λαβέ

Man I feel stupid



Marine Corps math:
48 marines@ 2 beers each = 36 cases... 

You may find yourself one day dead in a ditch somewhere. But by God, you'll find me in a pile of brass...

this is why I had to take every math class I took in college twice


Nice catch Nino Blanco
Infidelicous! 
umm....carry the 2.......


"When the Government fears the People there is Liberty, When the People fear the Government, there is Tyranny."  Thomas Jefferson
"Now is not the time for profits"  Barack Obama 
remember " is over of is percent over 100"
or is/of = x/100 so " 4 is 80 percent of 5" or 4/5 (Is/of) = 80/100 (percent over a hundred) and yes I realize the phrase "percent over a hundred" is incorrect. Just know the difference and go with it. So A what is X percent of B? => A/B = X/100 


Lead Distribution System Quality Control Manager
MS, USA

0 hours. They hire illegals to paint house and fuck in the upstairs bedroom.

Why do I have to lower myself to their standards?

Originally Posted By Mosspointers:
0 hours. They hire illegals to paint house and fuck in the upstairs bedroom. While this is the most accurate answer, I do not think that any teacher would give you a lot of credit for it. 


Originally Posted By paul_the_welder:
4. The sales price of a car is $12,590, which is 20% off the original price. What is the original price? 12590/x=80/100 Solve for x. 

Originally Posted By safeways1217:
I will not call you any name but, tomcats engage in tomcattery and you seem to be engaged in asshattery, do the math. Real Naval Officers wear Black Shoes. 
Originally Posted By paul_the_welder:
4. The sales price of a car is $12,590, which is 20% off the original price. What is the original price? A. $14,310.40 B. $14,990.90 C. $15,290.70 D. $15,737.50 E. $16,935.80 You could also do it this way. 12,590 = 0.80X 10*(12,590) = 10*(0.80X) 125,900 = 8X 125,900/8 = X 15,737.5 = X ETA: There are many ways to get the answer. 


Originally Posted By paul_the_welder:
ok ,try this one 2. If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together? A. 2 hours and 24 minutes B. 3 hours and 12 minutes C. 3 hours and 44 minutes D. 4 hours and 10 minutes E. 4 hours and 33 minutes John is a union painter. He'll paint the fucking house when he's good and damn ready and not a minute before. You got a problem wit dat talk to the super. 


4 hours 10 minutes, I know john and he would be on the couch watching the game except for the nooner at half time.



Originally Posted By hcook:
Let's make variable P = original Price P x .8 = $12,590 P = $15,737.50 The step not shown above is to divide both sides by .8 P x .8/.8 = $12,590/.8 


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