题目

英语翻译
If each foot of water in a lake screens out 60% of the light above,what percent of the light passes through 5 feet of water?
Raul invests $1000 in a savings account that earns 5% interest compounded annually.How much money will he have in the account at the end of 5 years?

提问时间：2020-08-10

答案

1.光线通过一尺的水的时候会被滤掉 60% 的光线,如果通过 5 尺的水会剩下多少百分比的光线通过 答：0.6 x 0.6 x 0.6 x 0.6 x 0.6 = 0.07776 = 7.776% 2.Raul 存了 1000 元在账户里,账户每年的收入是 5%,请问五年后,他...