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It’s finally recess time and the grade 9 students made their way to the canteen, Gab falls in line alongside their classmates. It’s finally their turn and Gab hands the cashier 100 pesos because they want to buy 5 oreos for them and their friends, how much would 1 oreo be?

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The class is preparing food for a project. The estimated time for this to be completed by three students is six hours. How long will it take to complete this if six students work on it?

Solution:
If k=xy and y=k/x 3 x 6 = 18, so k = 18 Substitute that into the equation: y = 18/6 = 3

If six people work together to prepare food for the project, it will take three hours to complete.

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Apply the Direct Square Variation formula (Wherein k is the constant)

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y = Items (50)
x = Approximate time per item (5)

Conclusion

y varies directly with the square of x. Therefore, the amount of time she needs to accomplish the test varies on the number of items given in the test.

k = 2

It will take K 2 hours to answer the 50-item test.

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Solve for Number 2

K is a student at Miriam College Nuvali. For today, they were given a 50-item test in Mathematics and they were expected to finish it within the day. If one item will take K approximately 5 minutes to answer, how many hours will it take for her to accomplish the test?

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y varies directly with x therefore the amt. paid varies from the price