Question

(0.3x + 64) degrees (0.1 + 32) degrees find the value of x

Answer 1

Answer:

$x=-15$

Step-by-step explanation:

Complete question :      In a right triangle other two angles are $(0.3x+64)\textdegree\ and\ (0.1x+32)\textdegree$ find the value of $x$.

In a right angle the third angle is $90\textdegree$

we know that

Sum of angle in a triangle $=180\textdegree$

$(0.3x+64)+(0.1x+32)+90=180\\\\0.3x+64+0.1x+32+90=180\\\\0.4x+96+90=180\\\\0.4x+186=180\\\\0.4x=-6$

Dividing $0.4$ both sides

$\frac{0.4x}{0.4}=\frac{-6}{0.4}\\\\x=\frac{-60}{4}\\\\x=-15$