Raoul invested $40,000 in two different types of bonds. The first type earned 4% and the second type earned 5%. If the profit (interest) on the 5% bonds was $200 more than the profit on the 4% bonds, how much did Raoul invest in the 5% bonds?
+118659 Raoul invested $40,000 in two different types of bonds. The first type earned 4% and the second type earned 5%. If the profit (interest) on the 5% bonds was $200 more than the profit on the 4% bonds, how much did Raoul invest in the 5% bonds?
A + B = 40000 (1a)
5A+5B = 200,000 (1b)
5% of A - 4% of B = 200
0.05A - 0.04B = 200 (2a)
5A-4B = 20,000 (2b)
(1b) - (2b)
9B = 180,000
B = 20,000
A= 20,000
Raoul invested $20,000 in each of the bonds
