We have been given that y varies inversely as x.
Since we know that equation that represents the inversely proportional relation between y and x is:, where,
k= Constant of proportionality.
Upon substituting our given values in above equation we will get,
Let us multiply both sides of our equation by 5.
Therefore, constant of proportionality for our given quantities is 200 and option b is the correct choice.
In order to solve system of equations by graphical method, we graph the system of equations. The intersection point (s) of the two graph would give us the solution.
If the graph of the equations intersect at 2 points then there will be 2 solutions, if there are 4 intersection then there would be 4 solutions and so on.
For the given graph, we can see that there are three intersection points.
Hence, there would be three solutions.
you multiply 30 with 0.7 to get the tax then divide by 20% of that to get the answer