Question

Two quantities are proportional if their ___ are equal.
A) numerator
B) denominators
C) cross products

Answer 1

Answer:

C) cross products

Step-by-step explanation:

Let's say you were solving $\frac{1}{2}=\frac{x}{4}$ for example. You would need to use cross products to simplify the problem. Here, the left side would be 1*4, and the right side would be 2*x, giving you $4=2x$, thus, leading to the solution $x=2$. We can see clearly that the cross products would thus need to be equal to each other.