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Algebra
Pregunta

8. Marcos had \( 15 \) coins in nickels and quarle...

8. Marcos had \( 15 \) coins in nickels and quarlers. He had \( 3 \) more quarters than nickels. He wrote a system of equations to represent this situation, letting \( x \) represent the number of nickels and \( y \) represent the number of quarters. Then he solved the system by graphing. What is the solution? 

Answer

x+y=15

(y-x)÷x=3

x=3 y=12

Solución
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