mdeeney mdeeney

06-03-2021
Mathematics

contestada

A bank loaned out $18,000, part of it at the rate of 9% per year and the rest at 19% per year. If the interest received in one year totaled $3000, how much was loaned at 9%
How much of the $18,000 did the bank loan out at 9%?

Respuesta :

jamesa38 jamesa38

06-03-2021

x * 0.09 + (18000-x)*0.19= 3000
x*(-0.1) + 3420 = 3000
x = -420/(-0.1)
x = 4200

The bank loaned out $4,200 at 9%

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