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14-03-2018
Mathematics

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a box of laundry detergent costs 12 dollars and can be used for 50 loads of laundry. how much does the detergent for 7 loads of laundry cost

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lizdup101 lizdup101

14-03-2018

[tex] \frac{50}{12}= \frac{7}{x} [/tex]

cross multiply

50x = (12)(7)

50x = 84

x = [tex] \frac{84}{50} [/tex]

x = $1.68

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