jcislit69 jcislit69

15-06-2022
Mathematics

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R is the midpoint of QS. If QR = 7x and QS = 15x − 7, what is QR?

Respuesta :

Medunno13 Medunno13

26-06-2022

Answer: 49

Step-by-step explanation:

If R is the midpoint of QS, QS=2(QR)=2(RS).

[tex]15x-7=2(7x)\\15x-7=14x\\-7=-x\\\\x=7\\\\QR=7(7)=\boxed{49}[/tex]

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