Three Arithmetic Means Between 2and22

Three arithmetic means between 2and22

 

Answer:

2,7,12,17,22

Step-by-step explanation:

2,_,_,_,22

an=22

a1=2

n=5

an=a1+(n-1)d

22=2+(5-1)d

22=4d+2

4d=20

d=5

find a2,a3,a4

an=2+(n-1)(5)

an=5n-3

a2=5(2)-3

a2=7

a3=5(3)-3

a3=12

a4=5(4)-3

a4=17

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