Question

Adrien has 4 liters of milk. He drinks y liters each day.

a) If Adrien has x liters of milk left after one week, express x in terms of y.

b) State the independent and dependent variables in the question

Answer 1

A) X = 4 - 7Y

B) Independent Variable: Y, Dependent Variable: X

Explanation:

Explanation for A:

We form a simple equation, knowing that if he drinks y liters each day after one week it would be 7Y. Then, we'd subtract it from 4

So equation would be X = 4 - 7Y

Explanation for B:

The independent is Y because doesn't change or get affected by another variable, and the dependent variable is X because depending on the value of Y, X will change accordingly.