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trasher [3.6K]
4 years ago
8

Find the length of X.​

Mathematics
1 answer:
kobusy [5.1K]4 years ago
8 0

\frac{21}{x}=\frac{30}{21}\\30\cdot\ x=21\cdot21\\30x=441\ /\ :\ 30\\x=14.7

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