Answer:
y = 2.25x
15.75 yards are needed for 7 elves
Explanation:
divide 6&3/4 by 3, then multiply by 7
What equation can be used to model the total number of yards of fabric y for x costumes?
y = 2.25x
How many yards of fabric do you need for 7 elf costumes?
y = 2.25x
y = 2.25(7)
y = 15.75 yards or 15&3/4 yards