hally93 hally93

29-09-2019
Mathematics

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Y is inversely proportional to x. If y= 400 when x =2 find y when x= 200

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tramserran tramserran

29-09-2019

Answer: 4

Step-by-step explanation:

Inversely proportional means xy = k, where k is the constant of proportionality

First, find k when x = 2 and y = 400 ----> 2(400) = k --> 800 = k

Then, find y when x = 200 (knowing that k = 800)

200y = 800

y = 4

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