Question

Решите пропорцией 11 1/5:7=10 1/2:x

Answer 1

11 1/5*x = 10 1/2*7
56/5x=21/2 * 7
56/5x = 147/2
x = 147/2 * 5/56
x = 735/112
x = 6 63/112

Answer 2

Спс