700 words
) Given that Alexandra does 300 words in 3 minutes, let's set a proportion to find out how many words she types in 7 minutes
words minutes
300 ------------------ 3
x ------------------- 7
Since it is a proportion we can cross multiply those numbers
3x=7*300 Divide both sides by 3
x=7*100
x=700 words
2) So Alexandra types 700 words at this rate, in 7 minutes.