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Mathematics 19 Online
OpenStudy (anonymous):

please help b/b-1=9/7

OpenStudy (anonymous):

Cross multiply first .......

OpenStudy (anonymous):

|dw:1398118097487:dw|

OpenStudy (anonymous):

from there you get 9b-9=7b. get it because your multiplying the diagonals.

OpenStudy (anonymous):

the earth has a diameter of about 1.27 times 10^4 kilometers. the dwarf planet plutos diameter is estimated to be about 2.3 times 10^3 kilometers about how many times larger is the diameter of earth compared to pluto? a. 1/2 b. 2 c. 5 d. 10

OpenStudy (anonymous):

the rest is easy algebra!

OpenStudy (anonymous):

yes you are right collect similar terms ......

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