Henry opened a savings account and deposited 558.00. The account earns 7% interest, compounded quarterly. If he wants to use the money to buy a new bicycle in 3 years, how much will he be able to spend on the bike?

해법

He n ry 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 558.00. T h e a cco u n t e a r n s 7% in t eres t, co m p o u n d e d q u a r t er l y . I f h e w an t s t o u se t h e m o n ey t o b u y a n e w bi cyc l e in 3 ye a rs, h o w m u c h w i ll h e b e ab l e t o s p e n d o n t h e bik e ?

Amount : 687.14

솔루션 단계

Translate the problem into an equation:

A = 558 (1 + \frac{0.07}{4})^{4 \cdot 3}

558 (1 + \frac{0.07}{4})^{4 \cdot 3} = 687.14313 \dots

가장 가까운 hundredth 으로 반올림:

687.14

Amount : 687.14