help asap please.
suppose c and d cary inversely, and d = 2 when c = 17.
a. write an equation that models the variation.
b. find d when c = 68.
what i have so far is
d = k/c
2 = k/17
k = 2(17) = 34
^^ is that all or do i do more? i’m not so sure
well, your equation was
d = k/c , and you found k = 34
so the equation is d = 34/c
then for b) when c = 68 ,
d = 34/68 = 1/2
Good start! You're on the right track. Let's go through it step by step.
a. To write an equation that models the inverse variation between c and d, we can use the form d = k/c, where k is the constant of variation.
You correctly found that k = 34 since d = 2 when c = 17.
So the equation that models the variation is: d = 34/c.
b. Now, to find d when c = 68, you simply substitute c = 68 into the equation and solve for d.
d = 34/c
d = 34/68
d = 0.5
So, when c = 68, d = 0.5.
Therefore, the answer to part b is d = 0.5.
Well done! You successfully solved both parts of the problem. Let me know if there's anything else I can help you with.