Question

If y is inversely proportional to x and y = 100 when x = 10, find
(i) the value of y when x = 5,
(ii) an equation connecting x and y,
(iii) the value of x when y = 80.
answer part i and iii step by step​

Answer 1

Answer:

write informal letter to a friend thanking him for a present he has sent you.

Step-by-step explanation:

86, New Lane

Chennai

21st July, 20xx

Dear Kavish

I want to thank you a lot for the wonderful birthday gift that you have sent for me. Would you believe that I was planning to buy the same kind of electronic clock for myself. When I opened the gift I could not believe my eyes that it was of the same kind that I had thought of. Thank you once again.

Yours truly

Answer 2

Answer:

(i) y = 5000

(ii) y=1000x

(iii) x = 0.08

Step-by-step explanation:

y=k/x

100 = k / 10

100 * 10 = k

1000 = k

k = 1000

y= 1000 x

y = (1000)(5)

y = 5000

80 = 1000 x

80 / 1000 = x

0.08 = x

x = 0.08