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
