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Fittoniya [83]
3 years ago
10

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

Mathematics
1 answer:
o-na [289]3 years ago
4 0

Answer:  4

<u>Step-by-step explanation:</u>

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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