Question

найдите значение выражения 1 2/3+2 6/7 x если x=3 4/15 ; x=7/12

Answer 1

1 2/3 + 2 6/7х , при х = 3 4/15
1 2/3 + 2 6/7 * 3 4/15 = 5/3 + 20/7 * 49/15 = 5/3 + 28/3 = 33/3 = 11
1 2/3 + 2 6/7х , при х = 7/12
1 2/3 + 2 6/7 * 7/12 = 5/3 + 20/7 * 7/12 = 5/3 + 5/3 = 10/3 = 3 1/3