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Makenzie Chan
Mathematics
22 May, 18:36
Solve the inequality 81-1 1/5x<55
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Melanie Reynolds
22 May, 18:44
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{x:x<11/130}
Step-by-step explanation:
given 81-1 1/5x<55. you first change the < to equal sign (=)
given you 81-11/5x=55. multiplying throughout the equation with 5x.
thus, 81*5x - 11/5x * 5x = 55*5x
results to 405x-11=275x
grouping like terms.
405x-275x=11 results to
130x = 11
dividing through by 130
you will get x = 11/130. The inequality is written as {x:x<11/130}. the
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