Question 1127616
I think the key here is that the temp of the oven
stays at 375 degrees.
Initially:
potato = {{{ 75 }}} degrees
oven = {{{ 375 }}} degrees
D = {{{ 375 - 75 = 300 }}} degrees
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The formula shows this initial condition
if I let {{{ t=0 }}}
{{{ D(0) = 300*.98^0 }}}
{{{ D(0) = 300 }}}
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After 20 min:
oven = {{{ 375 }}}
{{{ t = 20 }}}
{{{ D = 300*.98^20 }}}
{{{ D = 300*.6676 }}}
{{{ D = 200.28 }}}
and
{{{ 375 - 200.28 = 174.72 }}}
The potato is 175 ( rounded off ) degrees F
if that's not the answer, get a 2nd opinion