Answer: after 5 months
Step-by-step explanation:
Let x be the number of months it takes for Dalia to have more gems than Grace.
We can set up an inequality; the left side representing Dalia and the right side representing Grace
20x > 120-10x
We can add 10x to both sides:
30x > 120
We can divide both sides by 30:
x > 4
Therefore, after 5 months Dalia will have more gems than Grace.
Answer:
4
Step-by-step explanation:
There are 4 ways to ignore one of the points. The other 3 can be connected to form a triangle.
_____
More formally, the number of ways that 4 items can be chosen 3 at a time is given by ...
... C(4, 3) = 4!/(3!(4-3)!) = 4/1 = 4
Answer:
Yes, because the area of one side of the divider is approximately 24ft^2
Answer: 8,800
Step-by-step explanation:
Since the hundredth place is 764 we will round up to 800
which will give you 8,800!
Tip: Rounding the number up only takes place if the last two digits in the number are 50 or above.
If not, Round down if the last two digits in the number are 49 or below.
IF the last digits are 00 no rounding takes place.
Answer: f^{-1}(x) = 3-x/3
Step-by-step explanation: Let y = f(x) and rearrange making x the subject, that is...
1. y = - 3x + 3 ( add 3x to both sides )
2. 3x + y = 3 ( subtract y from both sides )
3. 3x = 3 - y ( divide both sides by 3 )
4. x = 3-y/3
Change x back into terms of y
f^{-1}(x) = 3-x/3
