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شائع Word Problems >

Fredrick deposits 7,500 in a savings and finds that it doubles in 21 years. What was the annual percentage rate?

الحلّ

F re d r i c k d e p os i t s 7, 500 in a s a v in g s an d f in d s t ha t i t d o u b l es in 21 ye a rs . Wha t w a s t h e ann u a l p erce n t a g e r a t e ?

الحلّ

Rate : \frac{I}{157500}

خطوات الحلّ

Translate the problem into an equation:

I = 7500 r \cdot 21

I = 7500 r \cdot 21, r

حلّ لـ:

r = \frac{I}{157500}

Rate : \frac{I}{157500}

أمثلة شائعة

87 is 145% of what number Twice the difference of a number and 2 equals 7 A bill of\$16000 is charged for water and is calculated with a vat of 8%.Calculate the value of the total bill number subtracted from 15/7 gives 7/2 Find the number.Two more than the quotient of a number and 9 is equal to 8