Question

\(\frac{-2}{3}\)=\(\frac{x}{15}\)=\(\frac{200}{y}\)

Tìm x và y

Answer 1

\(\frac{-2}{3}\)=\(\frac{x}{15}\)

suy ra x = -5

\(\frac{-10}{15}\)= \(\frac{200}{y}\)

-10 y = 3000

y = - 300

Answer 2

Ta có : \(\frac{-2}{3}\)= \(\frac{x}{15}\)= \(\frac{200}{y}\)

thì \(\frac{-2}{3}\)= \(\frac{x}{15}\) ; \(\frac{-2}{3}\)= \(\frac{200}{y}\)

Vì \(\frac{-2}{3}\)= \(\frac{x}{15}\) nên (-2) . 15 = 3 . x

=> x = \(\frac{\left(-2\right).15}{3}\)= -10

Vì \(\frac{-2}{3}\)= \(\frac{200}{y}\) nên (-2) . y = 3 . 200

=> y = \(\frac{3.200}{-2}\)= -300

Vậy x = -10 ; y = -300