Advertisements
Advertisements
Question
If x and y vary inversely as other and y = 35, find x when constant of variation = 7.
Advertisements
Solution
\[ \text{ Given } : \]
\[y = 35 \text{ and } k = 7\]
\[\text{ Now } , xy = k\]
\[ \Rightarrow 35x = 7\]
\[ \Rightarrow x = \frac{7}{35}\]
\[ = \frac{1}{5}\]
\[ \therefore x = \frac{1}{5}\]
APPEARS IN
RELATED QUESTIONS
Which of the following are in inverse proportion?
The time taken for a fixed journey and the speed of the vehicle.
55 cows can graze a field in 16 days. How many cows will graze the same field in 10 days?
A person has money to buy 25 cycles worth Rs 500 each. How many cycles he will be able to buy if each cycle is costing Rs 125 more?
If x and y vary inversely as other and x = 30, find y when constant of variation = 900.
If 40 workers can do a project work in 8 days, then _________ workers can do it in 4 days
It takes 60 days for 10 machines to dig a hole. Assuming that all machines work at the same speed, how long will it take 30 machines to dig the same hole?
Both x and y are said to vary ______ with each other if for some positive number k, xy = k.
If d varies directly as t2, then we can write dt2 = k, where k is some constant.
If p and q are in inverse variation then (p + 2) and (q – 2) are also in inverse proportion.
