Percentage problems

Question

Jake borrowed$5000 from two different banks. One bank charges 7% simple interest, and other charges 8.5% simple interest.  If the total interest payment is $380, how much did he borrow from each bank?

Answer 1

let x be amount borrowed from one bank, then 5000 - x is the amount borrowed from the other

.07(x) + .085(5000 - x) = 380

.07x + 425 - .085x = 380

-.015x + 425 = 380

-.015x = -45

x = 3000

so $3000 to one bank (7%) and 2000 to the other bank (8.5%)

Comments

Thank you so much!! you've been a lot of help

Answer 2

if travel at 90 and increased it 100