Answer:
4.875
Explanation:
1. multiply 13 times 3 and then 8 times u
2. set equal to each other so you get 39=8u
3. divide both sides by 8 to isolate u
4. solve 39/8 which is 4.875
4.9
Use the butterfly method.
13*13 = 8*u
39 = 8u
(divide by 8)
4.875 = u
4.875 is about 4.9
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