davionham25 davionham25

04-05-2015
Mathematics

contestada

Ratio equal to 90:18

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Mrobert10 Mrobert10

04-05-2015

90:18

divide using 3 on both sides

90:18

30:6

10:2

now lets use 2

10:2

5:1

5:1 is the equal ratio to 90:18

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