The ratio of two side lengths of the triangle is given. Solve for the variable, then find the length of CB . AB:CB is 1:3 please help

Question

The ratio of two side lengths of the triangle is given. Solve for the variable, then find the length of CB . AB:CB   is 1:3 please help

anonymous · Answer

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amistre64 · Answer

ab/cb = 1/3

cb = 3ab

anonymous · Answer

sorry for wat i said earlier. was having problems with a girl and can you explain what tht means

amistre64 · Answer

the ratio they give you suggest a fraction$$\frac{ab}{cb}=\frac13$$rewriting this we get:$$3ab=cb$$
input the values of ab and cb that are in the problem

3x = 2x+3

and solve for x

amistre64 · Answer

once you know x, you can then determine the specific values for ab  and cb

anonymous · Answer

im rlly slow st this....... how would i find x

amistre64 · Answer

this is as basic as algebra gets ...

3x = 2x+3

what are some ideas you have that might be useful in solving it?

anonymous · Answer

2x+3/3x 
this is as basic as i suck im sorry

anonymous · Answer

? after 3x

amistre64 · Answer

:)  lets start by getting the xs to one side .... id suggest subtract 2x from each side

 3x =  2x+3
-2x    -2x
------------
what do we get here?

anonymous · Answer

1x=3???

amistre64 · Answer

correct

so, since x = 3  and cb = 2x+3
                          or cb = 3x

what is the value of cb?

anonymous · Answer

im so fluttering stupid... 9 thankyo
u

anonymous · Answer

i think you can guess wat fluttering was supposed to be lol