You multiply Q and a to get 240, because 15 x 16 = 240.
Answer:
add x to both sides. once you do this, you will get x+y=15
It is pretty simple
All you have to do is multiply 186 times .65 which you get 120.9
So that's all you have to do
Answer:
5$
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
