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August 20, 2014

August 20, 2014

Posted by **Joel** on Wednesday, March 30, 2011 at 6:01pm.

if her total yearly interest from both investments was 7200 how much was invested at 3% ?

- Math -
**Henry**, Thursday, March 31, 2011 at 10:47pmInvested $X @ 3%.

Invested $3X @ 5%.

0.03X + 0.05*3X = 7200.

0.03X + 0.15X = 7200,

0.18X = 7200.

X = $40,000.

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