mecoya1881 mecoya1881

14-11-2020
Mathematics

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84 y is directly proportional to x. Given that y = 144 and x = 12. Find the value of y when x = 7.

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madd3199 madd3199

14-11-2020

84y = k x X
84 x 144 = 12,096
12,096 = k x 12 Divide by 12 each side
1,008 = k
84 y = 1,008 x 7
84y = 7056 divide by 84 each side

Y = 84

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