Question

marco is reconstructing his expenses for the past two weeks. here are the records of his expenses: transaction cost ($) t - shirt 20 gas 22 movie 13 video game 39 jeans 34 hat 15 books 31 marcos bank statement says that he has an ending balance of $81. what is marcos starting balance? a. $255 b. $93 c. $174 d. $210

Explanation:

Step1: Sumar los gastos

$20 + 22+13 + 39+34 + 15+31$
$=(20 + 22)+13 + 39+34 + 15+31$
$=42+13 + 39+34 + 15+31$
$=(42+13)+ 39+34 + 15+31$
$=55+ 39+34 + 15+31$
$=(55+ 39)+34 + 15+31$
$=94+34 + 15+31$
$=(94+34)+15 + 31$
$=128+15 + 31$
$=(128+15)+31$
$=143+31$
$=174$

Step2: Calcular el saldo inicial

El saldo inicial es la suma de los gastos y el saldo final. Entonces, el saldo inicial $=174 + 81=255$

Answer:

a. $255$