Susan and her dad share an intense love of baseball. Every weekend, they go to the batting cages to practice hitting. Susan's dad buys tokens for her to use in the batting cage.
There is a proportional relationship between the number of tokens Susan uses, x, and the
number of pitches thrown by the pitching machine, y.
x (tokens) y (pitches)
1
5
2.
2.
10
الا
15
4
20
What is the constant of proportionality? Write your answer as a whole number or decimal.
pitches per token
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