The number of calories burned, C, varies directly with the time spent exercising, t. When Dennis walks for 4 hours, he burns 800 calories. Which of the following equations shows this direct linear variation?
C = t
C = 800t
C = 4t
C = 200t

Question

The number of calories burned, C, varies directly with the time spent exercising, t. When Dennis walks for 4 hours, he burns 800 calories. Which of the following equations shows this direct linear variation?
       C = t
       C = 800t
       C = 4t
       C = 200t

nnesha · Answer

do you know the equation for direct variation ??

directrix · Answer

@Bananas1234      800 divided by 4 = ? Post what you get, okay?

directrix · Answer

That will be the constant of variation, k.

Then, you can write the formula  C = k*t and fill in for k.

directrix · Answer

@Bananas1234