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Matt-EUC

10-01-15 02:40 PM

Math problems

My cousin approached me with a math question from her homework and it's got me stumped. Just wondering if any of you guys are maths wizards and could help.

Find two numbers whose sum is 10 and multiply together to equal 10.

Scoobs

10-01-15 03:14 PM

Re: Math problems

The numbers aren't whole numbers. The answer is (rounded to 3 decimal places) 8.873 and 1.127

Shawthing

10-01-15 08:01 PM

Re: Math problems

Yes, but usually they want you to show your working:

We get simultaneous equations:
Y+Z=10 and
Y x Z=10

Merging and multiply by Y gives
Y^2 -10Y -10= 0

Using [ -b+\- √(b^2 - 4ac)]÷2a gives

5 +\- √15

Bluepete

10-01-15 08:07 PM

Re: Math problems

Quote:

Originally Posted by Shawthing (Post 2995323)

Ummm, yeah. That's. ... what I was about to say.

Pete ;)

embee

10-01-15 08:35 PM

Re: Math problems

First you have to understand that "maths" is plural not singular.

PyroUK

10-01-15 08:45 PM

Math problems

Unless you're American

And wrong

BanannaMan

11-01-15 03:52 AM

Re: Math problems

Quote:

Originally Posted by PyroUK (Post 2995336)

Unless you're American

And wrong

Hey! Leave me out of this!
I can do maths as good as any 10 year old. (providing I have a calculator)

PyroUK

11-01-15 10:29 AM

Math problems

Don't worry banana man, wasn't trying to take the pizz out of your ability to count, just to spell and speak haha :-p

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