x=9 because the triangle is equilateral which means every side is equal to 60. When you do the math you get 7x-3=60 which is 7x=63 and 63/7=9
Answer: There are 14 long pieces she can cut.
Step-by-step explanation:
Since we have given that
Length of yards of ribbon is given by
Length of yards of ribbon pieces need to be cut is given by
Number of yards is given by
Hence, there are 14 long pieces she can cut.