ManuelSauceman235 ManuelSauceman235

27-03-2015
Mathematics

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How do you solve 39= 1 3/10b

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27-03-2015

1 3/10·b=39
(1·10+3)·b/10=39
13b/10=39
13b=39·10
13b=390|:13
b=30

Answer: 30

Answer Link

27-03-2015

39= 13/10 * b
39= 1.3 *b ( 13 divided by 10= 1.3)
39/ 1.3= b (39 divided by 1.3)
30=b
Answer is 30

Answer Link

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