Homework Help: prealgebra

Posted by sweetangle on Tuesday, July 14, 2009 at 3:46pm.

a traffic sign is in the shape of an isosceles triangle. each of the equal sides is 5in.longer than tice the base.if the perimeter is 80in., find the length of the base?

whoever helps me can you tell me how to respond i do not know how to respond back to say thank you or ask for more help. thank you<3

prealgebra - bobpursley, Tuesday, July 14, 2009 at 3:52pm
SEcond remark: Use reply below.

First. Perimeter= b+L+L
Perimeter=b+5+b + 5 + b
you are given perimeter , solve for b, the base
prealgebra - sweetangle, Tuesday, July 14, 2009 at 4:02pm
am i replying
prealgebra - DrBob222, Tuesday, July 14, 2009 at 4:12pm
Yes, you replied.
prealgebra - sweetangel, Tuesday, July 14, 2009 at 6:04pm
oh ok ty drBob222. in order to solve this problem do i use the formula isosceles? and thank you so much for helping me!

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