Question

Instructions for a craft project say that the length of a piece of red ribbon should be 7 inches less than the length of a piece of blue ribbon. How long is the BLUE ribbon if the length of the RED ribbon is 12 inches? * 1 5/7 inches 5 inches 19 inches 84 inches

Answer 1

Answer:
a) Length of red ribbon is 3 inches
b) Length of red ribbon is 20 inches
c) Length of red ribbon is (x - 7) inches

Solution:

Given that,
The length of a piece of red ribbon should be 7 inches than the length of a piece of blue ribbon
Therefore,
Length of red ribbon = length of blue ribbon - 7 ---- eqn 1
We have to find the length of red ribbon if the length of the blue ribbon is:
a) length of blue ribbon = 10 inches
Therefore, from eqn 1,
Length of red ribbon = 10 - 7
Length of red ribbon = 3
Thus length of red ribbon is 3 inches
b)  length of blue ribbon = 27 inches
Therefore, from eqn 1,
Length of red ribbon = 27 - 7
Length of red ribbon = 20 inches
c) length of blue ribbon = x inches
Therefore, from eqn 1,
Length of red ribbon = x - 7
Thus length of red ribbon is (x - 7) inches