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A pencil at a stationery store costs $1, and a pen costs $1.50. Shawn spent $12 at the store. He bought a total of 9 items. Which system of equations can be used to find the number of pencils (x) and pens (y) he bought? 1.5x + y = 12x = 9yx + 1.5y = 12x + y = 9x + 9y = 12x = 1.5y9x + y = 12x = 1.5y

Respuesta :

So, let's create the equations

[tex]\begin{gathered} x+y=9 \\ 1x+1.5y=12 \end{gathered}[/tex]

x are the pencils and y are the pens, which in total were 9

Then, we have to multiply the price of each by the amount x and y to have the total of 12 dollars

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