If y is directly proportional to 1/x and x = 2 when y = 20, what is the value of x when y = 1.25
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Answer:
hey xd...here ur answer
Step-by-step explanation:
Y is directly proportional to 1/x
xy=k (where k is constant)
so,
for x=2 and y=20
k=xy
k=2×20
k=40-(1)
now,
for y=1.25
k=xy
k=x×1.25
k=1.25x-(2)
from equation (1) & (2)
40=1.25x
40/1.25=x
40/1.25=xx=32
hope it will help u ...
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