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Matt-EUC
10-01-15, 02:40 PM
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
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
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
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

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

Pete ;)

embee
10-01-15, 08:35 PM
First you have to understand that "maths" is plural not singular.

PyroUK
10-01-15, 08:45 PM
Unless you're American





And wrong

BanannaMan
11-01-15, 03:52 AM
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
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