Question

Aflati numerele "x" si "y", stiind .ca x - y = 24 si ca:

a) x/7=y/4;
b) x/11=y/7;

VA ROG MULT, AJUTATIMA

Answer 1

$\frac{x}{7} = \frac{y}{4} = > 4x = 7y = > x = \frac{7}{4}y$

$\frac{7}{4} y - y = 24 = > 7y - 4y = 96 = > 3y = 96 = > y = 32$

$\frac{x}{11} = \frac{y}{7} = > 7x = 11y = > x = \frac{7}{11}y$

$\frac{7}{11} y - y = 24 = > 7y - 11y = 264 = > - 4y = 246 = > y = - 66$