Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.
Two students in the same Spanish class, Chloe and Diane, plan to get together after school to make vocabulary flashcards. Chloe started on the project yesterday and has already made 5 flashcards. Diane hasn't started yet. Since Chloe makes 4 flashcards per minute and Diane makes 9 flashcards per minute, Diane will soon have the same number of flashcards. How many flashcards will each student have at that point? How long will that take?
Chloe and Diane will each have BLANK
flashcards in BLANK
minutes.