This is a result of the rules of significant figures. These are the digits of the numbers that matter. For operations involving multiplication, the product should have the same significant numbers with the least significant numbers of the given data. In this case, that would be 0.4. Since 0.4 has one significant figure, then the product should be reported with one significant number. That should be 0.1.
So the first thing we need to do is find the average family size. 4+4+5+5+5+5+5=29/7= 4.1428
6+5+5+4+4+3+4+2+4= 4.1111111111111
So Neighborhood A has the biggest families
Answer: X 2,6,8,12,20
Y 1,3,4,6,10
Step-by-step explanation:
Divided by 2 too get the answers or add 10 + 10 you’ll get the answer
Answer:15
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Since y will have same value, y doesn't really matter. Thus,
We can solve for y in the 2nd equation as:
-3x - y = 4
-3x - 4 = y
Now we can plug it into the first and solve for x:
-9x + 4y = 8
-9x + 4(-3x - 4) = 8
-9x - 12x - 16 = 8
-21x = 8 + 16
-21x = 24
x = 24/-21
x = -8/7
Correct answer is C.
