Suppose that you have $6,000 to invest, and you invest x dollars at 10% and the remainder at 8%. Choose the expression that represents the amount invested at 8%.

Question

Quizplus · Accepted Answer

We know that $x+(6000-x)$ is equal to 6000, which is the total amount invested. We want to find the expression that represents the amount invested at 8%, so we need to subtract x from 6000-x (the amount invested at 10%) to find the amount invested at 8%.

(6000-x) - x = 6000 - 2x

Therefore, the expression that represents the amount invested at 8% is 6000 - 2x.

Now we just need to see which answer choice matches that expression: 
A) 1200 - incorrect 
B) 4800 - correct 
C) 2400 - incorrect 
D) 3200 - incorrect 
E) None of the above - incorrect

Suppose That You Have $6,000 to Invest, and You Invest