Question

Interpole 07 meios aritimeticos entre 112 e 250 teremos qual razão

Answer 1

$a_n = a_1 + (n - 1).r \\ 250 = 112 + (9 - 1).r \\ 250 = 112 + 8r \\ 8r = 250 - 112 \\ 8r = 138 \\ \\ r = \frac{138}{8} \\ \\ r = 17,25$

Answer 2

a₁ = 112

an = 250

an = a₁ + ( n-1) r

250 = 112 + (9-1) r

250 - 112 = 8r

138 = 8r

r = 138/8

r = 17,25

{112 - 129,25 - 146,50 - 163,75 - 181,00 - 198,25 - 215,50 - 232,75 - 250,00}