leeangcantellops leeangcantellops

22-09-2019
Mathematics

contestada

(Sumatoria) Si 7 + 14 +...+ 7n = 1617, el valor de n es...

Respuesta :

vidalmari6p99qfk vidalmari6p99qfk

22-09-2019

Answer:

n=2

Step-by-step explanation:

7+14 = 7+7*2

7*2=14

1,617 -7 =1,610

1,610: 14 = 115

Al numero 7 se le suma 115 veces el numero 14(que es lo mismo que 7*2)

115*14 = 1,610

7+1,610 = 1,617

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