cesar2642
contestada

At the city museum, child admission is $5.20 and adult admission is $9.50. On Monday, 167 tickets were sold for a total sales of $1,255.40. How many child tickets were sold that day?

Respuesta :

nibadita8

Answer: 77 children tickets were sold that day

Step-by-step explanation:

5.20x+9.50y=1255.40

x+y=167

                                               5.20x+9.50(167-x)=1255.40

x+y=167                                   5.20x+1586.50-9.50x=1255.40

-x    -x                                       -4.30x+1586.50=1255.40

y=167-x                                              -1586.50   -1586.50

                                                    -4.30x=-331.1

                                                      -4.30  -4.30

                                                       x=77

Otras preguntas