During 15 Major League Baseball games, umpires reported that 1800 baseballs were used. If this ratio remained constant throughout the whole season, what is the constant of proportionality that relates the number of baseballs used, y, to the number of baseball games, x?

Question

270

120

60

15

Answer 1

The constant of proportionality is found by dividing the total number of baseballs used by the total number of games played.

1800 baseballs used / 15 games = 120 baseballs used per game

Therefore, the constant of proportionality is 120.

So, the correct answer is 120.