math
posted by peter on .
As part of a new fitness plan, Sabir runs on a treadmill at the same speed for 15 minutes every morning. The table shows the calories he burns over time.
Time (in minutes) Number of calories
Burned
3 15
6 30
9 45
12 60
Write an equation to represent the relationship between the time Sabir runs and the number of calories he burns. Use x as the independent variable and y as the dependent variable.

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See later post.