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## WhiteRabbit 3 years ago If the perimeter of the square at the right is 72 units, what are the values of x and y? (Will attach picture.)

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1. WhiteRabbit

|dw:1350348560300:dw|

2. WhiteRabbit

i did 3y + 2x = 36 and 4x + 6y = 72 to try to do eliminationt but.... that doesn't make any sense...

3. tjones89

what do you know about the sides of a square?

4. WhiteRabbit

they equal 72

5. tjones89

but how do the sides of a square relate to each other?

6. tjones89

and i mean any square not just this one

7. WhiteRabbit

oops i few the picture wrong.... it's supposed to be 3y not 3x...

8. tjones89

yea I figured from the equations that was supposed to be a y

9. WhiteRabbit

the sides of the square equal each other?

10. tjones89

yes

11. tjones89

so if you relate that to the square in your problem you can safely say that 2x = 3y

12. WhiteRabbit

so 2x = 3y and 8x= 72?

13. tjones89

yes

14. WhiteRabbit

and x = 9 so 2x is 18 and 3y is 27?

15. tjones89

3y = 2x so 3y should equal 2 * 9

16. WhiteRabbit

hmm but.... myeh so y = 6?

17. tjones89

yes good work

18. WhiteRabbit

hehe thanks

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