kaymarie

10-05-2008, 10:54 PM

Part of 13,750 is invested at 9% anual interest, and the rest is invested at 8%. After one year, the accounts paid 1,185 in interest. How much was invested at the lower rate?

I know I=prt, but i'm not sure how to plug these in.

Is it 1,185=(13,750)(.09)(x) then subtract that from 13,750???

And then this one:

To buy a house, a woman was required to make a down payment of $11,400. What did the house sell for if this was 15% of the purchase price?

I thought that it was 11,400 x .15

But it says the answer is 76,000. I dont know how they got that.

I know I=prt, but i'm not sure how to plug these in.

Is it 1,185=(13,750)(.09)(x) then subtract that from 13,750???

And then this one:

To buy a house, a woman was required to make a down payment of $11,400. What did the house sell for if this was 15% of the purchase price?

I thought that it was 11,400 x .15

But it says the answer is 76,000. I dont know how they got that.