contestada

if the average of 7 is consecutive odd numbers is 23 whatis the value of the greatest integer in this seriers

Respuesta :

consecutive odd integers are 2 apart
they are
x,x+2,x+4,x+6,x+8, x+10,x+12

mean is 23


(x+x+2+x+4+x+6+x+8+x+10+x+12)/7=23
(7x+42)/7=23
times 7 both sides
7x+42=161
minus 42 both sides
7x=119
divide both sides by 7
x=17
largest is x+12
17+12=29

largest is 29