Answers

1. Answer:

   each hour 320 calories are burned

   Step-by-step explanation:

   so the answer is C.

   The number of calories burned is dependent on the number of hours working out. For a one-hour workout, there are 320 calories burned, and for a two-hour workout, there are 640 calories burned.

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2. We can make the following inference – The number of calories burned is dependent on the number of hours working out.

   What is the general equation of a Straight line?

   The general equation of a straight line is –

   [y] = [m]x + [c]

   where –

   [m] → is slope of line which tells the unit rate of change of [y] with respect to [x].

   [c] → is the y – intercept i.e. the point where the graph cuts the [y] axis.

   The equation of a straight line can be also written to express proportional relationship as –

   y = kx  {k is constant}

   Given is a table that shows a proportional relationship –

   Workout (hours)      1         2       3

   Calories Burned  320    640   960

   From the given table, we can make the following inference –

   The number of calories burned is dependent on the number of hours working out. For a one-hour workout, there are 320 calories burned, and for a two-hour workout, there are 640 calories burned.

   320 = k

   In general –

   y = 320k

   Therefore, we can make the following inference – The number of calories burned is dependent on the number of hours working out.

   To solve more questions on direct proportionality, visit the link below-

   brainly.com/question/20400984

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