Ariana opened a savings account and deposited 800.00 as principal. The account earns 6% interest, compounded monthly. How much interest will she earn after 5 years?Round your answer to the nearest cent.

解答

A r iana o p e n e d a s a v in g s a cco u n t an d d e p os i t e d 800.00 a s p r in c i p a l . T h e a cco u n t e a r n s 6% in t eres t, co m p o u n d e d m o n t h l y . Ho w m u c h in t eres t w i ll s h e e a r n a f t er 5 ye a rs ? R o u n d yo u r an s w er t o t h e n e a res t ce n t .

Interest : 279.08

求解步骤

Translate the problem into an equation:

1079.08012 \dots = 800 + I

求解

I, 1079.08012 \dots = 800 + I : I = 279.08

Interest : 279.08