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
So you do 18 x 8 to get the area of the rectangle bit. (18 x 8 = 144)
Then you can put the two half circles together to make a full circle. Area of a circle is
pi x radius x radius
so the radius would be half of the diameter (8/2 = 4)
so area would be:
Pi(equal to around 3.14) x 4 x 4 = 50.2
then you add the areas of the rectangle and circle
144 + 50.2 = 194.2
Answer:
Maybe
Step-by-step explanation:
Assuming that the diamater is 16 inches, then yes because the pizza is twice as big, it should be twice as much.
But because it is not stated in the question that it is 16 inches in <u><em>diamater,</em></u> I will not say yes. It could be 16 inches in radius, curcumfrience, or area.
1. 20,000,000 = 20 million
2. 200,000 = 200 thousand
3. 20,000 = 20 thousand
4. 2 = 2 ones? (I'm not sure about this one)
Answer:
90
Step-by-step explanation:
