数学GWD一题！

Xiaotongdi

$10,000 is deposited in a certain account that pays r percent annual interest compounded annually, the amount D(t), in dollars, that the deposit will grow to in t years is given by D(t) = 10,000 {1+(r/100)}^t.What amount will the deposit grow to in 3 years?
(1)D(t) = 11,000
      (2) r =10

这题答案是D！我知道2可以，但是1怎么可以呢？还是存在两个未知啊！

Xiaotongdi

谁来解救一下下？

jeanq

印错了吧= =是D(1)之类的