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Can someone please give me the (Answers) to this? ... please ...

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Can Someone Please Give Me The Answers To This Please I Need Help class=

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Linandrew41idn

7.[tex]\frac{15}{21} =\frac{25}{25 +?}\\15(25+?) = 21*25\\375 + 15*? = 525\\? = 10[/tex]

8.[tex]\frac{?}{77} =\frac{30}{30+25} \\?(30+25)=77*30\\55? = 2310\\? = 42[/tex]

9.[tex]\frac{11-5}{11} =\frac{?}{22} \\22(11-5) = 11(?)\\132 = 11*?\\? = 12[/tex]

10[tex]\frac{?}{?+28} =\frac{8}{8+16} \\\frac{?}{?+28} =\frac{8}{24} \\8(?+28)=24?\\8?+224=24?\\16? = 224\\? =14[/tex]

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