1) Create a number line with that can fit all your numbers
-----|------|-------|-----|---
1 2 3 4
2) then put an x over the number that you have. If you have the number more than once put how many numbers there are Example: 1,2,3
x x x x x
---|--------|------|------- x x x
1 2 3 --------|-------|-------| <- For more than one of the same number 1 2 3 Example: 1,1,2,3,3
So,
If you are rounding to the nearest tenth of a MB, then it would look like this:
3.2 + 4.9 = 8.1 MB
Because in 3.15, 5 is greater than or equal to 5, and in 4.89, 9 is greater than or equal to 5.
If you are rounding to the nearest MB, then it would look like this:
3 + 5 = 8 MB
Because in 3.15, 1 is less than 5, and in 4.89, 8 is greater than or equal to 5.
In my opinion, I would mentally add them to get 8.14 MB, because if you do math well, you can mentally add these things like second nature. This is really helpful when you go shopping, which I'll bet you will be doing profusely.
Answer:
(- 
, 4 )
Step-by-step explanation:
Given the 2 equations
3x + 8y = 28 → (1)
3x + 2y = 4 → (2)
Subtracting (2) from (1) term by term will eliminate the x- term
(3x - 3x) + (8y - 2y) = (28 - 4), that is
6y = 24 ( divide both sides by 6 )
y = 4
Substitute y = 4 into either of the 2 equations and solve for x
Substituting into (1)
3x + 8(4) = 28
3x + 32 = 28 ( subtract 32 from both sides )
3x = - 4 ( divide both sides by 3 )
x = -
Solution is (- , 4 )
Answer:
Step-by-step explanation:
3 3/8 = ((3×8)+3)/8= 27/8
The general equation is y-k=a(x-h)² where (h,k) is the vertex.
So in this case we have y+12=a(x+6)².
Plug in x=0, y=-24: -12=36a, and a=-⅓. Therefore y+12=-⅓(x+6)².
