If X=5Y, then X and Y vary ______ with each other.
Finding the relation between X and Y.
Given: X=5Y
So,
X=5Y⇒XY=5
That means X∝Y
Hence, if X=5Y, then X and Y vary directly proportional with each other.
Question 17
If x=5y, then x and y vary ___with each other.
Fill in the blanks in each of the following so as to make the statement true. (i) Two quantities are said to vary ___ with each other if they increase (decrease) together in such a way that the ratio of the corresponding values remains same. (ii) x and y are said to vary directy with each other if for some positive number k,___ = k. (iii) If u= 3 v, then u and v vary___ with each other.
Question 31
If the quantities x and y vary directly with each other, then___of their corresponding values remains constant.