y varies inversely as x, and y = 50 when x = 10. What is the value of y when x = 20?

Question

anonymous · Answer

y inversely varies so:
$$\large y = \frac{k}{x}$$

where k is any constant..

you are given with y = 50 and x = 10

So firstly find k from it..

anonymous · Answer

is it 500?

anonymous · Answer

y = 50 and x = 10

put that in the formula then tell me what you got for k  ???

anonymous · Answer

Yes k = 500

Now:

you have k = 500 and x = 20 can you find y using same formula??

anonymous · Answer

25

anonymous · Answer

Well Done..

anonymous · Answer

oh thanks.... this was easy i just need to stop being lazy. The problem seems hard by looking but i need to actually read and try to solve on my own :)

anonymous · Answer

Try more you will definitely get this..

anonymous · Answer

ok :)