Question

Stiind ca 20 supra x = y supra 1,5 rezulta ca x*y supra 10 =...........
* inseamna ori
Va ro dau coroana

Answer 1

$\frac{20}{x} = \frac{y}{1.5}$
$xy = 20 \times 1.5$
$xy = 30$

$\frac{xy}{10} = \frac{30}{10} = 3$

Answer 2

20/x=y/1,5

xy=20•1,5

xy=30

xy/10=30/10=3