Martina is comparing offers from two banks on checking accounts that Include debit cards. Bank A charges a 20 monthly fee for a checking account and debit card, plus 0.70 for each transaction. Bank B charges a 40 monthly fee for a checking account and debit card with unlimited transactions. Suppose Martina makes 30 transactions in a given month. Answer the questions below. (a) How much would she pay at each bank for the given month? Bank A: square Bank B: square (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 Ssquare cheaper than Bank A.

Question

Martina is comparing offers from two banks on checking accounts that Include debit cards. Bank A charges a 20 monthly fee for a checking account and debit card, plus 0.70 for each transaction. Bank B charges a 40 monthly fee for a checking account and debit card with unlimited transactions. Suppose Martina makes 30 transactions in a given month. Answer the questions below. (a) How much would she pay at each bank for the given month? Bank A: square Bank B: square (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 Ssquare cheaper than Bank A.

Answer 1

(a) Para calcular cuánto pagaría Martina en cada banco por el mes dado, primero necesitamos calcular el costo total en cada banco.En el caso del Banco A, el costo mensual es de

0.70 por cada transacción. Dado que Martina realiza 30 transacciones en un mes, el costo total sería:

0.70 \times 30) = \

21 = \

40 con transacciones ilimitadas. Dado que Martina realiza 30 transacciones en un mes, el costo total sería simplemente:

41Banco B: \

1 \]Por lo tanto, el Banco B es \$1 más económico que el Banco A.

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