SOLUTION: Mr. Graham invested some of his $18,000 in bonds and made a 5% profit and the rest in bonds that made a 12% profit. If the profit on the 12% bonds was $885 more than the profit on

Question 141224: Mr. Graham invested some of his $18,000 in bonds and made a 5% profit and the rest in bonds that made a 12% profit. If the profit on the 12% bonds was $885 more than the profit on the 5% bonds, how much did Mr. Graham invest in the 5% bonds?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Mr. Graham invested some of his $18,000 in bonds and made a 5% profit and the rest in bonds that made a 12% profit. If the profit on the 12% bonds was $885 more than the profit on the 5% bonds, how much did Mr. Graham invest in the 5% bonds?
:
Let x = amt invested at 5%
:
It said the total invested was 18000, therefore:
(18000-x) = amt invested at 12%
:
5% profit + 885 = 12% profit
.05x + 885 = .12(18000-x)
:
.05x + 885 = 2160 - .12x
:
.05x + .12x = 2160 - 885
:
.17x = 1275
x =
x = $7500 invested at 5%
;
:
Check solution find the profit on each; 18000-7500 = 10500 invested at 12%
.12*10500 = 1260
.05*7500 = 375
----------------
difference = 885; confirms our solution
RELATED QUESTIONS
I have tried and tried to solve this! Can you help me?! Mr. Graham invested some of... (answered by mananth)

Hello! I'm insanly confused by a word problem. It is: "Mr. Graham invested some of his (answered by richwmiller,Edwin McCravy)

Mr. Ferrier invested $26,000. Some was invested in bonds that made a 5% profit, and the... (answered by ikleyn)

Here's my problem: Rosalinda invested some of her $15,000 in bonds that made a 6% profit (answered by stanbon)

Rosa invested some of her $15,000 in bonds that made a 6% profit and the rest in bonds... (answered by ankor@dixie-net.com,MathTherapy)

Annie-Sophie invested some of her $20,000 in bonds that made an 8% profit and the rest in (answered by jojo14344)

Here's my question: Anne-Sophie invested some of her $20,000 in bonds that made an 8%... (answered by josmiceli)

Anne invested some of her $20,0000 in bonds that made an 8% profit and the rest in bonds... (answered by Amily_2190)

Erwin invested $120,000 in stocks and bonds. If he made a 20% profit on his stocks and a... (answered by Boreal)