Need help with 7th Grade Homework

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sailor3X7

Petty Officer 2nd Class
Joined
Aug 5, 2004
Messages
140
I am trying to help my daughter with her math.<br />I'm lost on this one. I'm hoping some of you are good at math.<br />Here's the problem:<br />A guy buys a car for $10,930.95<br />He received a 19% discount.<br />What was the original price of the car.<br />My wife and I have used up two pages of paper and we can't get it.<br />If you can get the answer, please tell us the process.<br />Thanks
 
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steam_mill

Chief Petty Officer
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Jan 16, 2002
Messages
413
Re: Need help with 7th Grade Homework

The original price of the car is $13495.00.<br /><br />Here is how you arrive at it:<br /><br />$10930.95 is 81% of the original price (100%-19%).<br /><br />Therefore the original price of the car is:<br /><br />$10930.95 / 0.81 = 13495<br /><br />Hope this helps....<br /><br />Joe
 
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sailor3X7

Petty Officer 2nd Class
Joined
Aug 5, 2004
Messages
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Re: Need help with 7th Grade Homework

It sure does. Thank you, thank you.<br />We had a mental block and we could not get off 19 percent. Good grief. <br />I really appreciate that Joe!!<br /> (my wife and daughter appreciate it too.)
 
jtexas

jtexas

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Oct 13, 2003
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Re: Need help with 7th Grade Homework

Hey Sailor, my 7th grader did that chapter last week. You got loans & simple interest coming up. Enjoy!
 
T

theriver

Petty Officer 1st Class
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Dec 13, 2004
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Re: Need help with 7th Grade Homework

By the way, that was a pretty good discount.
 
WillyBWright

WillyBWright

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Re: Need help with 7th Grade Homework

When I was in 7th grade, you could drop the first 1 off the sticker price on that problem and still get a new car. :eek: :D
 
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kenimpzoom

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Re: Need help with 7th Grade Homework

Using Algebra<br /><br />X - 0.19X = 10,930.95<br /><br />0.81X = 10,930.95<br /><br />X = 10,930.95 / 0.81
 
eeboater

eeboater

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Re: Need help with 7th Grade Homework

Originally posted by KenImpZoom:<br /> Using Algebra<br /><br />X - 0.19X = 10,930.95<br /><br />0.81X = 10,930.95<br /><br />X = 10,930.95 / 0.81
Click to expand...
I'm confused. I like to think I'm halfway decent at math since I'm finishing up my Computer science major. But, the first step of the equation:<br /><br />X - 0.19X = 10,930.95<br /><br />is followed up with the second step<br /><br />0.81X = 10,930.95<br /><br />But I see no logical way to eliminate the leading x....<br /><br />Nevermind, I think I just figured it out.<br /><br />X - 0.19X = 10,930.95<br /><br />can also be read as <br /><br />1X - 0.19X = 10,930.95<br /><br />Which would make 1 - 0.19 = 0.81.<br /><br /><br />Ok. Now, I feel smart and stupid at the same time! AMAZING!!!<br /><br />Sean
 
K

kenimpzoom

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Re: Need help with 7th Grade Homework

You got it EE. My son it only 8 now, but I know his Algebra will be coming soon. Gotta keep practicing, or you will forget.<br /><br />Ken
 
K

KennyKenCan

Commander
Joined
Aug 26, 2002
Messages
2,501
Re: Need help with 7th Grade Homework

Algebra? <br /><br />That was a good book!<br /><br />I was so sad when that mouse died...ummmm...er...<br /><br />Never mind. I was thinking of something else...<br /><br />Now the question is, what was I thinking of?
 
eeboater

eeboater

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Messages
2,644
Re: Need help with 7th Grade Homework

Originally posted by KKC:<br />Now the question is, what was I thinking of?
Click to expand...
Is it... Nina and the Secret of the Nymph?<br /><br />Sean
 
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