Question

Somebody help me!

Jessica and Josh are selling Entertainment Books to raise money for the art room at their school. One book sells for $18. Jessica received the prize for selling the most books in the school. Jessica sold 15 times more books than Josh. Together they sold 272 books. How many did each one of them sell?

Answer 1

josh vendió 17 libros recaudando 306 dolares .

jessica vendió 255 libros recaudando 4590 dolares.

Explanation:

Sustituimos por variables :

libros que vendió Jessica = x

libros que vendió Josh = y

entonces:

x + y = 272

Jessica vendió 15 veces mas libros que josh:

x = 15y

Reemplazamos en la anteriior ecuacion:

15y +y = 272

16y = 272

y = 17

Reemplazamos en la primela ecuacion :

x + 17 = 272

x = 255