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شائع Word Problems >

Find the time required for an investment of 3000 to grow to 7000 at an interest rate of 8.5% per year, compounded quarterly

الحلّ

F in d t h e t im e re q u i re d f or an in v es t m e n t o f 3000 t o g ro w t o 7000 a t an in t eres t r a t e o f 8.5% p er ye a r, co m p o u n d e d q u a r t er l y

الحلّ

Time : 10.07

خطوات الحلّ

Translate the problem into an equation:

7000 = 3000 (1 + \frac{0.085}{4})^{4 t}

7000 = 3000 (1 + \frac{0.085}{4})^{4 t}, t

حلّ لـ:

t = 10.07

Time : 10.07

أمثلة شائعة

the product of two consecutive even integers is 80 Find a number that has the property that the sum of the square root of the number and the square root of 3less than the number is 3.60 is 200% of what number Aisha is 58 years younger than Jeanette. Emma is 13. Stacy is 41 years older than Emma and 9 years younger than Jeanette. How old is Aisha?Wendy opened a savings account and deposited 500.00. The account earns 6% interest, compounded quarterly. If she wants to use the money to buy a new bicycle in 3 years, how much will she be able to spend on the bike?