need help with a word problem

Question

I need help with this problem:

If a monthly health insurance premium costs $285.14 and So far this year up until June, you made a payment of $334.54 for January, $235.74 for February, $285.14 for March, April, and May, and for June you were charged charged $260.44. How much should you pay for the month of July and August considering there has been times where you were charged more or less than your monthly premium $285.14 ?

Answer 1

From January thru August is 8 months inclusive.  

The total cost of 8 months insurance at $285.14 per month is 8*285.14 = $2281.12

 

The amount you have paid thru June is 

334.54 + 235.74 + 3*285.14 + 260.44 = $1686.14  

 

The amount still due for July and August is 2281.12 - 1686.14 = $594.98.  

 

If you want to make equal payments in July and August you would pay 

594.98/2 = $297.49 in each month (July and August).