Simultaneous Equations - How to form the equation
Juanita saves 20 cent and 50 cent coins in a money jar. After counting her money, she has 299 coins in total which ass up to $94.
I) Taking x to be the number of 20 cent coins and y to be the number of 50 cent coins, write down two equations in x and y to represent this information.
Im just struggling trying to form the equation, I can solve it after that.
I think it would be something like this
20x + 50y = 299
20x + 50y = 940
I was thinking along these lines, Can somebody help?
But then when you change the signs, you cross out both the x and the y, Its confusing me.