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  • 19-08-2018
  • Mathematics
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A is between B and T. if AB=7y+9, AT=3y+4, and BT=143. find AB

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Shaswat221005
Shaswat221005 Shaswat221005
  • 19-08-2018
AB+AT=BT
(7Y+9)+(3Y+4)= 143
10Y+13= 143
10Y= 130
Y=13
AB= 7Y+9
AB= 7*13+9
AB=100
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