Question

Please show your work!

Answer 1

3. $1x + 3x + 8x = 180$

$12x = 180$

$x = \frac{180}{12}$

$x = 15$

$1x = 1 \times 15 = 15 \\ 3x = 3 \times 15 = 45 \\ 8x = 8 \times 15 = 120$

$15 + 45 + 120 = 180$

Hope it helps....