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amm1812
2 years ago
5

Solve the proportion. 7 b 21 18 b = [?]

Mathematics
2 answers:
crimeas [40]2 years ago
5 0

Answer:

b = 6

Step-by-step explanation:

To find the answer, find the GCF of 7 and 21, which is 7, and divide it by 7/7 to get 1/3, now the equation is 1/3 = b/18. How many times does 3 multiply to get 18? 6, multiply the first side of the equation by 6/6 to get 6/18, now we have 6/18 = b/18, since they are the same, b = 6

Lady bird [3.3K]2 years ago
3 0

Answer:

b = 6

Step-by-step explanation:

<em>here's</em><em> your</em><em> solution</em>

<em> </em><em> </em><em>=</em><em>></em> 7/21 = b/18

=> by cross multiplication

=> 21b = 7*18

=> b = 126/21

=> b = 6

hope it helps

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