math
posted by shirley on .
a guy gets a $10,000 bonus he puts some into a cd which pays 6% he puts the rest in a fund that pays 11% he got $900 in interest how much did he put in the fund?

i am stumped! i just draw a blank! can you help!!!!!!!11

>.< I'll give you a hint.
Let x = the amount he put into a CD(not to be confused with the circular thingy ;/).
Let 10000x = the amount he put into the fund.
When you understand this, the rest should come to you. 
i'm new at this i get 4000 and 6000 but i don't know the formula

Yes, 4000 and 6000 is correct. What formula?

thanks for your help.