Question 1188981

kawther saved 3 nicles today if she triples the number of niclkles she saves evry day how many days including today will it take her to save more than 700 nickles
<pre>          Sum of G.P.: {{{matrix(1,3, a[1]((r^n - 1)/(r - 1)), "=", S[n])}}}
In THIS case, we have: {{{matrix(7,3, a[1]((r^n - 1)/(r - 1)), ">", S[n], 
3((3^n  - 1)/(3 - 1)), ">", 700,
3(3^n - 1)/2, ">", 700,
3(3^n - 1), ">", "1,400",
3^n - 1, ">", "1,400"/3,
3^n, ">", "1,400"/3 + 1,
n, ">", log (3, ("1,400"/3 + 1)))}}}
                                  {{{highlight_green(matrix(1,8, n, ">", 5.595928477, "====>", n, "=", 6, days))}}}
                                   You can do the check!