WEBVTT
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Gloria can type 75 words in three minutes.
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Determine how many words she can type in four minutes.
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We can represent typing 75 words in three minutes as a ratio, where the words are our numerator and the minutes are our denominator.
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By setting this equal to π₯ over four, where π₯ is the number of words weβre trying to determine and four is the number of minutes, this is creating a proportion, where we will cross multiply and solve.
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To cross multiply, you find the cross product.
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So we take 75 times four and three times π₯.
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Again 75 times four and three times π₯; they cross.
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75 times four is 300 and three times π₯ is three π₯.
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Now in order to solve for π₯, we need to get rid of three.
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Therefore, we must divide both sides by three.
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Therefore, π₯ equals 100.
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So what does that mean?
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This means Gloria can type 100 words in four minutes.