Final answer:
The number of words Gabriel can type varies directly with time. Gabriel can type 306 words in 221 seconds.
Step-by-step explanation:
The number of words Gabriel can type varies directly with time. This means that the ratio of the number of words typed to the time taken to type them remains constant.
To find out how many words Gabriel can type in 221 seconds, we can set up a proportion using the given information: 90 words is to 65 seconds as x words is to 221 seconds.
Using cross multiplication, we can solve for x:
90/65 = x/221
Multiplying both sides of the equation by 221 gives us:
x = (90/65) * 221
Simplifying the expression:
x = 306
Therefore, Gabriel can type 306 words in 221 seconds.