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Question 1 (Essay Worth 10 points)
(06.02 HC)

Henrik buys 40 collectible cards per month. Kharif sells 20 cards from his collection of 180 each month. When will Henrik have more cards than Kharif? Show your work.


Sagot :

The 4th month or any following month.

We can represent Henrik with the equation:

H = 40m

K = 180 - 20m

Set them equal to each other.

40m = 180 - 20m

Solve for m.

40m + 20m = 180

60m = 180

180/60 = 3

month 3 is when they're equal, so any month after the 3rd month is when Henrik will have more cards than Kharif