Give an example of a real-world situation involving two unknown quantities. then write an algebraic expression to represent the situation.

represents the situation described below.

Step-by-step explanation:

A real-world situation could be

Mary is runs everyday, she runs 15 kilometers per day, if she move at a constant speed, what would be the ratio that represents the time she needs everyday to make 15 kilometers.

In this example, we have three quantities, distance traveled, speed and time. But, we already now the distance traveled, and we don't know the speed and time Mary uses to make 15 kilometer. We also know that the movement is constant, so it's defined by

Where is speed, is distance and is time. So, if , the ratio that represents time would be

Therefore, the algebraic expression that represents the hypothetical situation is

Where is time and is speed.

add an !

step-by-step explanation: