Triangle problem

[Consie]

Hey i was wondering if anyone can help me with a problem...

The three angle of a triangle are (2x + 5) degrees, (x - 10) degrees, and 65 degrees. Determine the size of each angle (hint: the sum of the 3 sides must equal to 180 degrees)

i have no idea where to begin! thanks!

 

[pka]

The three angle of a triangle are (2x + 5) degrees, (x - 10) degrees, and 65 degrees. Determine the size of each angle (hint: the sum of the 3 sides must equal to 180 degrees)
i have no idea where to begin! thanks!

You cannot solve
\(\displaystyle (2x+5)+(x-10)+65=180~?\)

 

[Mrspi]

Hey i was wondering if anyone can help me with a problem...

The three angle of a triangle are (2x + 5) degrees, (x - 10) degrees, and 65 degrees. Determine the size of each angle (hint: the sum of the 3 sides must equal to 180 degrees)

i have no idea where to begin! thanks!

Your hint is not correct....it should say "The sum of the three ANGLES oany triangle must be 180 degrees."

So...

(2x + 5) + (x - 10) + 65 = 180

Now, solve that equation for the value of x. Once you know the value of x, you can determine the actual measures for the angles with measures (2x + 5) and (x - 10) degrees.