document.write( "Question 1154320: how do you find the interest rate of this account math word problem? Serena places $2000 in an interest-earning account where the interest compounds annually,after twoyears there is $2130.60in the account> use this formula $2000(1+r)^2=2123.60 \n" ); document.write( "
Algebra.Com's Answer #776726 by MathTherapy(10810)\"\" \"About 
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how do you find the interest rate of this account math word problem? Serena places $2000 in an interest-earning account where the interest compounds annually,after twoyears there is $2130.60in the account> use this formula $2000(1+r)^2=2123.60
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\"matrix%281%2C3%2C+%222%2C000%22%281+%2B+r%29%5E2%2C+%22=%22%2C+%222%2C123.60%22%29\"
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document.write( "       \"matrix%281%2C3%2C+%281+%2B+r%29%5E2%2C+%22=%22%2C+%222%2C123.6%22%2F%222%2C000%22%29\"
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document.write( "       \"matrix%281%2C3%2C+1+%2B+r%2C+%22=%22%2C+sqrt%28%222%2C123.6%22%2F%222%2C000%22%29%29\"
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document.write( "       Interest rate, or  \n" );
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