drift534 drift534

06-11-2016
Mathematics

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the amount of cookies a person needs ,y, varies directly with the number of hours spent baking ,X. for the 12 hours of work the total number of cookies is 93. how many hours of work are needed to eat 155 cookies?

the amount of cookies a person needs y varies directly with the number of hours spent baking X for the 12 hours of work the total number of cookies is 93 how ma class=

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texaschic101 texaschic101

06-11-2016

12/93 = x/155
cross multiply
(93)(x) = (12)(155)
93x = 1860
x = 1860/93
x = 20.....so 20 hrs of work are needed

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