un joyero vende 13 anillos de oro y 18 de plata por 9405 euros. sabiendo que el anillo de oro cuesta el triple que el de plata ¿cual es el precio de cada anillo?
Accepted Solution
A:
To solve this problem you must apply the proccedure shown below:
1. You have that:
- He sales 13 gold rings and 18 silver rings in 9405 euros. - The cost of the silver ring is three times the cost of the gold ring.
2. Keeping the information above on mind, you have the following system of equations:
x: the gold ring. y: the silver ring.
x+y=9405 x=3y
3. Then, you have:
(3y)+y=9405 y=9405/4 y=2351.23 euros
x=3y x=3(2351.23) x=7053.75 euros
The answer is: - Gold ring=7053.75 euros - Silver ring=2351.23 euros