math

Stan invested \$13,000, part at 17% and part at 2%. If the total interest at the end of the year is \$1,910, how much did he invest at 17%?

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Stan invested \$13,000, part at 17% and part at 2%. If the total interest at the end of the year is \$1,910, how much did he invest at 17%?

Let x = the 17% quantity and y = the 2% quantity. Then
.17x + .02y = 1910
Also, x + y = 13,000

I bet you can take it from here.

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