Madeline invested 2, 800 in an account paying an interest rate of 4.4% compounded annually. Assuming no deposits or withdrawals are made, how long would it take, to the nearest tenth of a year, for the value of the account to reach 6100

الحلّ

M a d e l in e in v es t e d 2, 800 in an a cco u n t p a y in g an in t eres t r a t e o f 4.4% co m p o u n d e d ann u a ll y . A ss u min g n o d e p os i t s or w i t h d r a w a l s a re ma d e, h o w l o n g w o u l d i t t ak e, t o t h e n e a res t t e n t h o f a ye a r, f or t h e v a l u e o f t h e a cco u n t t o re a c h 6100

Time : 18.08

خطوات الحلّ

Translate the problem into an equation:

6100 = 2800 (1 + \frac{0.044}{1})^{1 \cdot t}

6100 = 2800 (1 + \frac{0.044}{1})^{1 \cdot t}, t

حلّ لـ:

t = 18.08

Time : 18.08