Question

Calcule os valores de y e x na seguinte progressão aritmética: P.A = (y, 13, x, 27...)

Answer 1

$> resolucao \\ \\ \geqslant progressao \: \: aritmetica \\ \\ a3 = \frac{a2 + a4}{2} \\ x = \frac{13 + 27}{2} \\ 2x = 40 \\ x = \frac{40}{2} \\ x = 20 \\ = = = = = = = = = = = = = = = = = = = = = = \\ \\ \\ a2 = \frac{a1 + a3}{2} \\ 13 = \frac{y + 20}{2} \\ 26 = y + 20 \\ y = 26 - 20 \\ y = 6 \\ \\ \\ \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \geqslant \geqslant$