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docker41 [41]
3 years ago
9

The variable y is directly proportional to the variable x. If y = 12 when x = 14, what is the value of x when y = 247

Mathematics
1 answer:
vlabodo [156]3 years ago
6 0

Answer: 288.17

Step-by-step explanation:

y ∝ x

⇒ y = kx

substituting the given value of x and y , the equation becomes

12 = 14 k

therefore

k = 12/14

k = 6/7

The formula then becomes

y = 6/7 x

when y = 247, we have

247 = 6/7 x

6x = 247 x 7

6x =  1729

x = 1729/6

x = 288. 17

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