Question 302009
the cube root of (4t plus 3) is equal to 8.15
{{{ (4t+3)^(1/3) = 8.15 }}}
{{{ 4t+3 = 8.15^3 }}}
{{{ 4t = 8.15^3 - 3 }}}
{{{ t = (8.15^3 - 3)/4 }}}
t = 134.586
rounded to 3 significant digits
t = 135