Solving Systems of Equations

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y = -3

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x = 9

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Front

If the knitting club sold 35 scarves at $18 each and made a total of $700 from selling scarves and hats, how many hats did they sell at $14 each?

Back

5 hats

Front

If the knitting club made $630 selling scarves, how much money did they make selling hats?

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$70

Front

How do you know if a system of equations has infinitely many solutions?

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The equations are identical.

Front

How do you know these systems of equations have no solutions?

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The lines are parallel.

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x = 8

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7