Lizzy L.
asked • 01/27/23Midpoint finding
if R is the midpoint of QS. RS = 2x-4. ST = 4x-1 and RT = 8x-43. Find QS
Q ----------R-----------S--------------T
Hope this little drawing helps with the explaination.
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1 Expert Answer
Mark M. answered • 01/27/23
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Mathematics Teacher - NCLB Highly Qualified
If R is the mid-point of RS what label goes on QR?
By segment addition QR + RS + ST = QT
Can you substitute and solve?
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Dayv O.
QS=2*RS=8x-8.,,,but something is wrong,on one hand QT=QS+ST=8x-8+(4x-1)=12x-9. On the other hand, QT=QR+RT=2x-4+8x-43=10x-47. Equating QT=QT, x=-19 which means the line segments are negative in nature -- something is wrong.01/27/23