Match each equation to the situation it describes. Explain what the constant of proportionality means in each equation.
Situations:
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A dump truck is hauling loads of dirt to a construction site. After 20 loads, there are 70 square feet of dirt.
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I am making a water and salt mixture that has 2 cups of salt for every 6 cups of water.
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A store has a “4 for $10” sale on hats.
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For every 48 apples I pick, my students get 24.