Question

5 Muñecas costaron $130 ¿Cuantas muñecas se podran comprar con $390 a 130$

Answer 1

For this case we have that, the cost of 5 dolls is $130. If we want to know the number of dolls that can be bought with $390 we make a rule of three:

5 dolls -----------> $130

x --------------------> $390

Where the variable "x" represents the number of dolls that can be purchased with $390.

`x = \frac {390 * 5} {130}\\x = 3 * 5\\x = 15`

Thus, you can buy 15 dolls.

Answer:

15 dolls