Answer:
Step-by-step explanation:
Answer:
7 = 7 * 10 = 70
Step-by-step explanation:
Answer:
40
Step-by-step explanation:
5 people in the room have 5*40 = 200 years altogether
a new person is X years old.
Now 6 people have (200 + x) years altogether.
Mean age of 6 people is (200+x)/6. and it is also = 40.
So,
(200+x)/6 = 40
200 + x = 240
x = 40
Answer: 5/2, 2.71, 2 3/4 , 5
6x^4-2x^3+26x^2+x+14 would be your anwser.
