ilyasguessous57 ilyasguessous57
  • 18-02-2024
  • Mathematics
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Please help with this maths question about simultaneous equations

Please help with this maths question about simultaneous equations class=

Respuesta :

dashataran
dashataran dashataran
  • 18-02-2024

Answer:

[tex]\pounds8[/tex]

Step-by-step explanation:

[tex]\text{Solution: }\\\text{Let the cost of book be } \textit{\pounds}x\text{ and cost of magazine be }\textit{\pounds}y.[/tex]

[tex]\text{1st case:}\\x=2y......(1)\\[/tex]

[tex]\text{2nd case:}\\x+4y=24....(2)\\\text{Substituting equation(1) in equation(2),}\\2y+4y=24\\\text{or, }6y=24\\\text{or, }y=4\\\text{Equation(1) becomes: }\\x=2(4)=8\\\text{So, the cost of a book is }\textit{\pounds}8.[/tex]

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