The total length of 3 boards was 21.35 m. If one board was 8.2 m long and another was 6.42 m long, how long was the third board?
2 answers:
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Answer:
Step-by-step explanation:
1. Find the GCF (Greatest Common Factor)
2. Factor out the GCF and simplify.
3. Factor
Which two numbers add up to -1 and multiply to -6?
<u>-3 and 2</u>
Rewrite the expression using the numbers above.
4. Done!