To find out the total length of ribbon the student bought, we need to add together the lengths of the yellow, red, and blue ribbons.
First, let's list the amounts:
Yellow Ribbon: 4 3 1 meters.
Red Ribbon: 6 6 1 meters.
Blue Ribbon: 5.9 meters.
Now, let's convert the mixed numbers to improper fractions to make it easier to add them together.
4 3 1 can be converted to an improper fraction:
4 3 1 = 3 13
6 6 1 can be converted to an improper fraction:
6 6 1 = 6 37
The third measurement, 5.9, is already in decimal form. To combine these, it helps to convert all the values to either fractions or decimals.
Convert the improper fractions to decimals:
3 13 = 4.3333 …
6 37 = 6.1666 …
Now, add the decimals:
4.3333 + 6.1666 + 5.9 = 16.3999
This can be rounded to two decimal places to give us approximately 16.40 meters.
Thus, the total length of ribbon the student bought is approximately 16.40 meters .