Question

read the description of a proportional relationship. during class today, jordans teacher gives everyone time to write their short stories. jordan is proud of his story and wants to email it to his grandparents. so, after school he goes to the computer lab to type it. there is a proportional relationship between the amount of time (in minutes) jordan types in the computer lab, x, and the total number of words he types, y. the equation that models this relationship is y = 21x. at this rate, how long does it take jordan to type 84 words? write your answer as a whole number or decimal.

Explanation:

Step1: Identify the given equation

The equation is $y = 21x$, where $y$ is the number of words and $x$ is the time in minutes.

Step2: Substitute $y$ value

We know $y = 84$, so substitute it into the equation: $84=21x$.

Step3: Solve for $x$

Divide both sides of the equation by 21: $x=\frac{84}{21}=4$.

Answer:

4