two friends are renting an apartment. they pay the landlord the first and last month's rent. the landlord also requires them to pay an additional half months rent for a security deposit. the total amount due is $1600. what is the monthly rent?

Respuesta :

Use the given information to write an equation, then solve it.

$1600 = (1 + 1 + 1/2)×(monthly rent) . . . . relationship given in the problem statement

$1600/2.5 = monthly rent = $640 . . . . divide by the coefficient of monthly rent