Question

A es proporcional a B e inversamente proporcional a C, si A=B cuando B=12 y C=3, hallar A cuando B=7 y C=12

Answer 1

A / B × C = k

12 / 12 × 3 = k

1 × 3 = k

3 = k

→ A / 7 × 12 = 3

A × 12 = 3 × 7

A × 12 = 21

A = 21 / 12

A = 7 / 4

A = 1,75