The measures of two complementary angles are represented by (3x+15) and (2x-10). What is the value of x.
I got 19, but when i sub it in for x, it doesnt add up to 90. What am i doing wrong?
Hello, eh501!
You're checking your answers . . . Good for you!The measures of two complementary angles are represented by (3x+15) and (2x-10).
What is the value of x?
I got 19, but when i sub it in for x, it doesnt add up to 90.
What am i doing wrong?
You made a small slip in arithmetic . . .
$\displaystyle (3x+15) + (2x- 10)\:=\:90\quad\Rightarrow\quad 5x + 5 \:=\:90\quad\Rightarrow\quad 5x \:=\:85\quad\Rightarrow\quad x \:=\:17$