Question

Ayuda plis es la un examen

Answer 1

PROBLEMA 1

$\frac{3}{9} = \frac{x}{15} \\ 3 \times 15 = 9x \\ 45 = 9x \\ \frac{45}{9} = x \\ 5 = x$

PROBLEMA 2

$\frac{x}{2} = \frac{4.5}{3} \\ 3x = 4.5 \times 2 \\ 3x = 9 \\ x = \frac{9}{3} \\ x = 3$

PROBLEMA 3

$\frac{24}{2k} = \frac{x}{3k} \\ 24 \times 3k = 2k \times x \\ 72k = 2kx \\ \frac{72k}{2k} = x \\ 36 = x$