Answer:
Step-by-step explanation:
The answer is 15
Answer:
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Answer:
XY=8
Step-by-step explanation:
In △XYZ, XY=XZ
It is isosceles triangle whose equal sides are XY=XZ
We are given,
XY=2a
YZ=3a+1
XZ=5a-12
XY=XZ
So, 2a=5a-12
Solve for a,
2a-5a=-12
-3a=-12
a=4
Now we put a=4 into XY=2a
So, XY=2(4)=8
To get the
Mean, you have to add all the ages of the men together:

Next you divide

by the amount of people:
Final Answer: 26
Answer:
1. A. 2. C. 3. C
Step-by-step explanation: