Mark bought gifts for his friends, and each gift cost $9. Let y represent the total cost and x represent the number of gifts. Write an equation to represent the proportional relationship between the total cost and the number of gifts he bought.

Question

anonymous · Answer

answers :

 y = 8x
 y =   one-eighth x
 y = 9x
 y = one-ninthx

automaticloveletter · Answer

y = 9x

anonymous · Answer

can you please tell me how you got that answer?

automaticloveletter · Answer

Yes, $9 for each gift right? since we don't know how many friends Mark has we'll put x and we don't know how much it costs altogether so that's why we put y.