Ravi is comparing offers from two banks on checking accounts that include debit cards. Bank A charges a 30 monthly fee for a checking account and debit card, plus 0.50 for each transaction. Bank B charges a 25 monthly fee for a checking account and debit card , plus 0.90 for each transaction: Suppose Ravi makes 15 transactions in a given month. Answer the questions below. (a) How much would he pay at each bank for the given month? Bank A: square Bank B: Ssquare (b) For the given month, which bank is cheaper and by how much? Bank A Bank A is Ssquare cheaper than Bank B. Bank B Bank B is square cheaper than Bank A.

(a) Para calcular cuánto pagaría Ravi en cada banco por el mes dado, podemos usar la fórmula:<br /><br />Costo total = Tarifa mensual + (Costo por transacción * Número de transacciones)<br /><br />Para Bank A:<br />Costo total = $30 + ($0.50 * 15)<br />Costo total = $30 + $7.50<br />Costo total = $37.50<br /><br />Para Bank B:<br />Costo total = $25 + ($0.90 * 15)<br />Costo total = $25 + $13.50<br />Costo total = $38.50<br /><br />Por lo tanto, Ravi pagaría $37.50 en Bank A y $38.50 en Bank B por el mes dado.<br /><br />(b) Para determinar cuál banco es más barato y cuánto lo es, podemos comparar los costos totales calculados en la parte (a).<br /><br />Bank A es $1.00 más barato que Bank B.<br /><br />Por lo tanto, Bank A es $1.00 más barato que Bank B.