if x=4 when y=7, and when x=14, y=0.99, the relation between x and y is:

• inverse

• direct

• constant

• none

if (x-y)=14, xy=2,

the value of x+y will be:

• 188

• 69

when sign of propotion is removed it is replaced with?

• constant

• equal to sign

• variable

• constant and equals to sign

in proportions 'k' is known as

• variable

• rate of change

• constant

constant tells about the _______ between given variables

• rate of change

• proportions

• values

why is it necessary to insert 'k'

what will be the value of 'a' if a² +b² = 16 , a-b=6, and b=8

Answer explanation

first find the value of a+b