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16-09-2015
Mathematics

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Please help solve number 30 and 31 please-show work to help me unerstand, thank you. :)

Please help solve number 30 and 31 pleaseshow work to help me unerstand thank you class=

Respuesta :

16-09-2015

[tex]-2(1-x) \leq 2x-7\\-2+2x \leq 2x-7\\-2 \leq -7\\\sf There~are~no~solutions~to~this~inequality[/tex]

There are no solutions because the last, final inequality is false.

[tex]\sf Number ~of ~20~dollar~bills = n\\20n \leq 100\\n = 5[/tex]
You can only take a maximum of 5 twenty dollar bills in one transaction.

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