## anonymous 3 years ago The perimeter of the rectangle is fifty-four feet. What is x? A rectangle is shown. The length is labeled fifteen feet and width is labeled x. thirty-nine feet twenty-seven feet twenty-four feet twelve feet

1. anonymous

i need the picture to figure it out :|

2. ParthKohli

The formula for the perimeter is $$P =2(\rm length + width)$$.

3. ParthKohli

Since the length is $$15$$ and the width is $$x$$, we have this equation:$2(15 + x) = 54$Solve for $$x$$.

4. anonymous

|dw:1357571093615:dw|

5. anonymous

ok figure it out based on the info parth gave (unless you want me to explain more)

6. anonymous

would you like more explanation?

7. anonymous

8. ParthKohli

OK, so do you know that the perimeter is the sum of ALL sides?

9. ParthKohli

Notice that opposite sides in a rectangle are equal.|dw:1357571260853:dw|

10. ParthKohli

So the sum of sides will be $$15 + 15 + x + x$$. But it is also given that the sum of all sides (perimeter) is $$54$$.

11. anonymous

Ok.

12. ParthKohli

So solve the equation $$15 + 15 + x + x = 54$$?

13. anonymous

I have to go study for exams for a few min, so let parth finish =3

14. anonymous

You have to figure out what x is, right?

15. ParthKohli

Yes! =)

16. anonymous

OK so you divide 15 right?

17. anonymous

I can't get on my study page o_o no don't divide by 15 subtract 15+15 from the perimeter and then divide by 2

18. anonymous

19. anonymous

7.2?

20. anonymous

no i think you did it wrong let me try

21. anonymous

54-30=? then divide ? by 2 to get answer

22. anonymous

11

23. anonymous

o_o no, sorry but very close

24. anonymous

12

25. anonymous

yes :D

26. anonymous

how did you get 11?

27. anonymous

just wondering

28. anonymous

22 divided by 2

29. anonymous

ok then? whatever i wish you good luck on your hw or whatever it is your doing