Suppose you deposit $600 in a bank account with a simple interest rate of 2.5%. You want to keep your deposit in the bank long enough to earn at least $120 in interest. How long should you keep your deposit in the bank? To earn at least $120 interest, you should keep your deposit in the bank for blank years

It will take 8 years to earn $120 interest.

Step-by-step explanation:

Giving the following information:

Principal= $600

Interest= $120

Interest rate= 2.5% = 0.025

To calculate the time required to reach the objective, we need to use the following formula:

I= P*r*t

I= interest

P= principal

r= rate

t= time

We isolate t:

t= I / (P*r)

t= 120 / (600*0.025)

t= 8

It will take 8 years to earn $120 interest.

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.