Question

there are four number cards 9,8,4,? the mean is 8 what is the missing number

Answer 1

Answer:

9+8+4+x/4 =8

9+8+4+x=32

x= 11

so, the missing card number is 11

Answer 2

Answer:

11

Step-by-step explanation:

let the missing card number be x.

9+8+4+x/4=8

21+x/4=8

21+x=32

x=32-21=11

Hope it's helpful.

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