Sara is making a key chain using the bead design shown. What fraction of the bea

Question

Sara is making a key chain using the bead design shown. What fraction of the beads in her design are either blue or red? Multi-Step In making the key chain, Sara uses the pattern of beads 3 times. After the key chain is complete, what fraction of the beads in the key chain are either white or blue? Jamie had 4/5 of a spool of twine. He then used 1/2 of a spool of twine to make friendship knots. He claims to have 3/10 of the original spool of twine left over. Explain how you know whether Jamies claim is reasonable.

Explanation / Answer

1). Fraction of the beads in the design either red or blue =

(Number of non colored beads)/(number of colored beads)

=> 4/15

2). (3×4)/(3×15)

4/15

3). 1-((4/5)-(4/10))

1-(2/5)

3/5

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