Mardi received an inheritance of $94,000. she invested part in an account earning at 5% annual interest and deposited the remainder in tax-free bonds earning 3% annual interest. her total annual income from the investments was $3548. find the amount invested at 5% to the nearest dollar.

She invested part in an account earning at 5% annual interest = $36400

Explanation:

Given:

Mardi received an inheritance = $94,000.

She invested part in an account earning at 5% annual interest

deposited the remainder in tax-free bonds earning 3% annual interest.  

Her total annual income from the investments was $3548

To Find:

The amount invested at 5% to the nearest dollar.

Solution:

Let  the amount mardi invested  in an account earning at 5%  be x

Then the remaining amount she deposited in tax-free bonds earning  at 3% annual interest is 94000 - x

So according to question

x=36400

graph b

step-by-step explanation:

one solution- graph a (clear intercepting point.)

no solution- graph b (they're parallel, there will never be a point of interception.)

infinite solutions- graph c (all points intercept.)