Math, asked by nivedyam407, 2 months ago

Given that ab= -2/5 , a = -1/8 , find b​

Answers

Answered by kmshansika
3

ab =   \frac{ - 2}{5}  \:  \:  \:  \: a =  \frac{ - 1}{8}  \\  a \times b =  \frac{ - 2}{5}  \\   \frac{ - 1}{8}  \times b \:  =  \frac{ - 2}{5}  \\ b \:  =  \frac{ - 2}{5}  \times  \frac{ - 8}{1}  \\ b =  \frac{16}{5}

:. b = 16/5

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Answered by ciola
0

Answer:

b = 16/5

Step-by-step explanation:

a =  \frac{ - 1}{8} \:  \: ; \:  \: ab =  \frac{ - 2}{5}  \\  \\ ab =  \frac{ - 2}{5} \\ ( \frac{ - 1}{8} ) \times b =  \frac{ - 2}{5}  \\ b =  \frac{ - 2}{5}  \div  \frac{ - 1}{8} \\ b =  \frac{ - 2}{5}  \times  \frac{8}{ - 1} \\ b =  \frac{_{2 \:  \: } \cancel{ - 2}}{5}  \times  \frac{8}{ \cancel{ - 1}_{ \:  \: 1}} \\ b =  \frac{2}{5}  \times 8 \\  \boxed{ b = \underline{ \underline{ \bf  \frac{16}{5} }}}

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