Question

Va rog rezolvati macar cateva exercitii!​

Answer 1

3.

$\frac{x}{65} = \frac{4}{10} \\ 10x = 65 \times 4 \\ 10x = 260 \\ x = 26$

6.

$\frac{15}{100} \times 280 = \frac{15}{10} \times 28 = \frac{420}{10} = 42g$

7.

$\frac{6}{100} \times x = 15 \\ \frac{6}{100} = \frac{15}{x} \\ 6x = 100 \times 15 \\ 6x = 1500 \\ x = \frac{1500}{6} \\ x = 250$