winnielovesing
winnielovesing
27-04-2021
Mathematics
contestada
I need help I will give brainliest.
Respuesta :
zc123
zc123
27-04-2021
Answer:
C
Step-by-step explanation:
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jiaxinzhou002
jiaxinzhou002
27-04-2021
Answer: 12
Explanation: QT = x +4
Use proportions: x +4/ 4 = 9/3
Cross Multiply: 3(x+4) = 36
Solve 3x+12 = 36
x=8
Plug back into equation: 8 +4 = 12
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