SOLUTION: Alex invest his summer earnings of $3050. He invest part of the money at 8%/year, and the rest at 7.5%/year. After 1 year, these investments earn 4242 in simple interest. How much

Question 1095065: Alex invest his summer earnings of $3050. He invest part of the money at 8%/year, and the rest at 7.5%/year. After 1 year, these investments earn 4242 in simple interest. How much did he invest at each rate?
Answer by greenestamps(13203) (Show Source): You can put this solution on YOUR website!

The numbers as I see them in your problem are inconsistent. If the two rates are 7.5% and 8% and the amount invested is $3050, then the total interest has to be somewhere around $280.

Re-post, making sure the numbers are right
RELATED QUESTIONS
Alex invest his summer earnings of $3050. He invest part of the money at 8%/year, and the (answered by josmiceli,MathTherapy)

Alex invest his summer earnings of 43050. He invest part of the money at 8%/year, and the (answered by greenestamps)

Solving Problems Using Linear Systems 4. Rehman invests his summer earnings of $3050. He (answered by stanbon)

Marco invests his summer earnings of $2440. He invests part of the money at 8% per year... (answered by mananth)

Michael received $1,000 as a graduation gift. He invested part of the money at 5% and the (answered by checkley77)

John has $10,220 to invest. He invests part of his money in a CD at 5% interest and the... (answered by checkley77)

Sarah invested $5000. She invested part of the money at 8% per year and the rest at 6%... (answered by ewatrrr)

Sam invests the earnings of $3000 from her full-time job. She invests part of the money... (answered by richwmiller)

Kate has a t-shirt business that has earned a total of $15 000 this year. She invests... (answered by The Troll Kid,Solver92311,greenestamps)