Question

The mean of 4, 9, 10 and x is 8. Find x.
The mean of p, 6, 7, 10 and 12 is 7. Find p.​

Answer 1

Answer:

x=9

p=0

Step-by-step explanation:

mean 1 = (4+9+10+x)/4 = 8

                           23+x = 32

                                 x = 9

mean 2 = (p+6+7+10+12)/5 = 7

                            p+35 = 35

                                   p = 0