The age of the oldest person that leaves the room is 36 years
<h3>How to calculate the average of a data?</h3>
The average of a data is defined as the ratio of the sum of the data to the sample size. Mathematically;
Average = sum/sample size
If the average age of a group of 8 people is 22. then;
22 = Xn/8
Xn = 22 * 8
Xn = 176
If after the oldest person leaves the room the average age decreases to 20, hence;
20 = H/7
H = 140
Xn = H + x
176 = 140 + x
x = 176 - 140
x = 36
Hence the age of the oldest person that leaves the room is 36 years
Learn more on average here: brainly.com/question/20118982
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Given that m∠abc=70° and m∠bcd=110°. Is it possible (consider all cases): Line AB intersects line CD? Yes, and the answer will be 180° so yeaaa, the statement is possible to intersect to AB and to the line CD.
Step-by-step explanation:
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Answer:
ok
Step-by-step explanation:
Answer:
5x+13+x+23=180°[exterior corresponding angle is supplementary.
6x=180-36
x=144/6
x=24
X^3 - y^3 + z
this is a trinomial because it has 3 terms
this is a 3rd degree one
so u have a 3rd degree trinomial