If y is directly proportional to 1/x and x=2 when y =20 ,what is the value of x when y= 1.25
Answers
Answered by
2
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
x=32
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Answered by
0
Answer:
1.6
Step-by-step explanation:
if y=1.25
value of x =1.6
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