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شائع Word Problems >

Paula deposits 1000 in an account that pays 1.6% interest compounded monthly. After how many years will the value of the account be 1500? Round to the nearest tenth.

الحلّ

P a u l a d e p os i t s 1000 in an a cco u n t t ha t p a ys 1.6% in t eres t co m p o u n d e d m o n t h l y . A f t er h o w man y ye a rs w i ll t h e v a l u e o f t h e a cco u n t b e 1500 ? R o u n d t o t h e n e a res t t e n t h .

الحلّ

Time : 25.4

خطوات الحلّ

Translate the problem into an equation:

1500 = 1000 (1 + \frac{0.016}{12})^{12 t}

1500 = 1000 (1 + \frac{0.016}{12})^{12 t}, t

حلّ لـ:

t = 25.35845 \dots

Time : 25.35845 \dots

Round

25.35845 \dots

to the nearest tenth:

25.4

Time : 25.4

أمثلة شائعة

yuko drove 819 miles in 13 hours. at the same rate,how many miles would she drive at 11 hours The sum of two numbers is 38. The large of number is seven less than twice the smaller number. Find the numbers two consecutive even integers have a sum of 34.Karen is 31 years old. Ashley is 17 years older than Karen and 41 years older than Clayton. How old is Clayton?21 more than a number is 24.