Question

$8,000 is invested in two different accounts earning 3% and 4% interest.

If the two accounts earn a total of $295 in interest, how much money was invested at 3%?

$2,500
$3,500
$5,500

Answer 1

Multiply eq. 1 by -3 and add to eq. 2,
-3A-3B%2B3A%2B4B=-24000%2B29500 the from eq 2, 2,500 A

Answer 2

Answer is A

Answer 3

can u explian how you got that so i can take it down as notes please

Answer 4

Sure
So, Let A be the amount invested at 3%, B the amount at 4%.
Total value:
A+B = 8000