Question

in a pair of supplementary angles,one angle is three half times the other .mfind their measures

Answer 1

Hey MATE!

Let one angle be x°

Therefore other angle is =
$3 \frac{1}{2} x = \frac{7}{2} x$
There sum is 180.

$\frac{7}{2} x + x = 180 \\ \frac{7x + 2x}{2} = 180 \\ \frac{9x}{2} = 180 \\ 9x = 360 \\ x = 40 \\ \\ \frac{7x}{2} = \frac{7 \times 40}{2} \\ 140$
Hope it helps #))