Respuesta :
Answer:
[tex]Maths\ Score\approx 83[/tex]
Step-by-step explanation:
[tex]Science\ Score=85\\\\y=0.9x+6.8\\\\where\ x\ represents\ marks\ in\ science\ and\ y\ represents\ marks\ in\ maths.\\\\Here\ x=85\\\\y=0.9\times 85+6.8\\\\y=76.5+6.8\\\\y=83.3\\\\y\approx 83\\\\Maths\ Score\approx 83[/tex]