WEBVTT
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The equation π‘ equals eight β shows the number of ice cream cones served by an ice cream truck in a number of hours.
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The variable β represents the number of hours, and the variable π‘ represents the number of ice cream cones served.
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How many ice cream cones were served after two hours?
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So the key thing here is our equation.
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And this equation shows the number of ice cream cones served by an ice cream truck in a number of hours.
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So weβve got π‘ is equal to eight β, where β represents the number of hours and π‘ represents the number of ice cream cones.
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What the question wants us to do is find out how many ice cream cones were served after two hours.
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So therefore, as β is the number of hours, we can say that β is gonna be equal to two.
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And what we need to do is substitute this into our equation.
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So therefore, π‘ is gonna be equal to eight multiplied by two.
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And thatβs because eight β means eight multiplied by β.
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And if β is equal to two, weβre gonna get π‘ is equal to 16 because, as we said, eight multiplied by two is 16.
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So therefore, we can say that 16 ice cream cones were served after two hours.
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What we can do is just double-check this.
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And we can double-check it using an inverse operation.
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So what we can do is rearrange to find β.
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So weβve got π‘ equals eight β.
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So therefore, we have a formula that tells us that π‘ divided by eight is equal to β.
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Well, to check it, what we can do is substitute in the value we found for π‘.
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And when we do that, we get 16 over eight is equal to β.
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And we get β is equal to two, which is great because 16 divided by eight is two.
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And two is what we started with because we want to know how many ice cream cones were served after two hours.
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So weβve checked our answer using inverse operations.
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And we can say yes, definitely, 16 cones were served after two hours.