Respuesta :
Answer:
7
Step-by-step explanation:
Mean = 6
so work backwards.
6 x 4 = 24
24 = total amount of all cards added together.
24 - 4 - 6 - 7 = 7
Answer:
the blank number is 7
Step-by-step explanation:
Mean : add all the numbers and divide by how many there is
4+7+6=17
we need to be able to divide it by 4 to make 6
6 x 4=24
so 4+7+6+x=24
24-17=7