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Mathematics 5 Online
OpenStudy (anonymous):

5.3/7.2=15.4/?

OpenStudy (anonymous):

actually its 5.3/7.2=?/15.4

OpenStudy (anonymous):

sorry-.-

OpenStudy (anonymous):

cross multiply

OpenStudy (anonymous):

5.3 / 7.2 = x / 15.4 x= (((15.4)(5.3)) / (7.2) ) = 11.3

OpenStudy (anonymous):

5.3 * 15.4 / 7.2

OpenStudy (anonymous):

simplify the expression 2x^2+8+3x^2+4x-10

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