Identificar la ecuación
la mitad de la edad de jorge equivale a la edad de marcela ; disminuida en 15años; por otro lado la suma de las edades de jorge y marcela es de 63 años cumplidos

The equations in the procedure

Jorge's age is 32 and Marcela's age is 31

Step-by-step explanation:

The question in English

Identify the equation

Half of the age of Jorge is equivalent to the age of Marcela decreased by 15 years; on the other hand the sum of the ages of Jorge and Marcela is 63 years of age.

Let

x ----->Jorge's age

y -----> Marcela's age

we know that

------> equation A

------> equation B

Solve the system of equations by substitution

Substitute equation B in equation A and solve for y

Find the value of x

therefore

Jorge's age is 32 and Marcela's age is 31

450 is the final answer! : )

step-by-step explanation:

milk=16 large

soda=280 kids

juice box=82 regular

63 soda +63 regular

124 large total