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3 years ago

15

27 students in all 4:5 packed lunch. how many students packed lunch

1 answer:

bonufazy [111]3 years ago

5 0

$\bf \stackrel{total}{27}\qquad 4:5\qquad \cfrac{4}{5}\implies \cfrac{4\cdot \frac{27}{4+5}}{5\cdot \frac{27}{4+5}}\implies \cfrac{4\cdot 3}{5\cdot 3}\implies \cfrac{\stackrel{packed~lunch}{12}}{\stackrel{did~not~pack~lunch}{15}}$

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Answer:

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$y = 10 x$ --- Ruben

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Step-by-step explanation:

Solving (a): Variables and what they represent

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Cindy:

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Total number of flashcards (y) in x minutes is:

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Step-by-step explanation:

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