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mezya [45]
2 years ago
6

7b ÷ 12 = 4.2                  What is b?

Mathematics
2 answers:
BlackZzzverrR [31]2 years ago
7 0
7b / 12 = 4.2

4.2 * 12 = 50.4

50.4 / 7 = 7.2
saw5 [17]2 years ago
5 0
\frac{7b }{12} = 4.2 \ \ /*12 \\ \\7b=4.2*12\\ \\7b= 50.4 \ \ \/:7\\ \\\frac{7}{7} \ b= \frac{50.4 }{7}\\ \\b= 7.2


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Step-by-step explanation:

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3 0
3 years ago
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