SOLUTION: Roopa Patel won a prize for her work. She invested part of the money in a certificate of deposit at 4% and $3000 more than that amount in a bond paying 6%. Her annual interest inco
Algebra.Com
Question 270272: Roopa Patel won a prize for her work. She invested part of the money in a certificate of deposit at 4% and $3000 more than that amount in a bond paying 6%. Her annual interest income was %780. How much did Roopa invest at each rate?
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
.04x+.06*(x+3,000)=780
.04x+.06x+180=780
.10x=780-180
.10x=600
x=600/.10
x=6,000 ans. for the amount invested @ 4%.
6,000+3,000=9,000 ans. for the amount invested @ 6%.
Proof:
.04*6,000+.06*9,000=780
240+540=780
780=780
RELATED QUESTIONS
Roopa Patel won a prize for her sculpture. She invested part of the money in a... (answered by mananth)
Dr Patel won a prize for his work. He invested part of the money in a certificate of... (answered by Fombitz,harpazo)
margaret fennell won a prize for her work. she invested part of the money in a... (answered by hamsanash1981@gmail.com)
Last year, Linda invested her money in two purchases. She purchased a certificate of... (answered by ikleyn)
A mother wants to invest $6,000.00 for her son's future education. She invests a portion (answered by mananth)
$2000 is invested in certificates of deposit. Some of the $3000 is placed in a 4% simple... (answered by jorel1380)
Lakeitha earned $12,000 more in her accounting job this year. She invested the money and (answered by checkley77)
a mother earned $16250 from royalties on her cookbook. She set aside 20% of this for a... (answered by Boreal)
A mother wants to invest $12000 for her children's education. She invests a portion of... (answered by mananth,nunezs1981)