Help please!
Charles has $8000 to invest,part at 4% and the rest at 5%. How much does he have invested at 5% if his annual investment form both investments total is $380?

Question

Help please!
Charles has $8000 to invest,part at 4% and the rest at 5%. How much does he have invested at 5% if his annual investment  form both investments total is $380?

mathstudent55 · Answer

Solve it like we solved the other similar problem, just with these numbers.

anonymous · Answer

x+y=800
y=8000-X
 so .04x+.05(8000-x)=380
     .04+400-.05x=380
     -.01x=-20
      x=2,000
     
x+y=8000
2000+y=8000
y=6000
is this right?

mathstudent55 · Answer

Excellent work!
Correct.
Now you need to answer the question. The question made no mention of x and y. You chose x and y.
Answer the question: "How much does he have invested at 5%... ?"
$6000 at 5%