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olchik [2.2K]
3 years ago
7

How do I do number.7??????? Please answer asap!!!!!!!!

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
4 0
Since they're ratios you can cross multiply then you just solve for x :)

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Ok, the solution to the first one. See below.

Step-by-step explanation:

1>3-d\\\\\mathrm{Add\:}d\mathrm{\:to\:both\:sides}\\\\1+d>3-d+d\\\\\mathrm{Simplify:}\\\\1+d>3\\\\\mathrm{Subtract\:}1\mathrm{\:from\:both\:sides}\\\\1+d-1>3-1\\\\\mathrm{Simplify:}\\\\d>2

See attachment below.

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