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 red ribbon if the length of the blue ribbon is:



10 inches?




27 inches?





x inches?



How long is the blue ribbon if the red ribbon is 12 inches?

Answer 1

Answer: 3 in, 20 in, x-7 in, 19 in.

Step-by-step explanation: First we must find the formula for the length of the red string. In this case, it is x - 7.

(x is the length of the blue string, in inches.)

First we go 10 - 7 = 3

Then we go 27 - 7 = 20

Then we go x - 7 = x - 7

Finally, 12 + 7 = 19 because we are already given the length of the red ribbon.