the spreadsheet shows the monthly revenue and expenses for a new business.use the models to predictt the month in which revenue will equal expense.
month revenue expenses
jan 4000 22,000
feb 9000 24,000
mar 13,000 25,000
apr 16,000 27,000
may 21,000 30,000
Would someone please help and explain how to figure this out.
This is all I'v come up with and am not sure which one is the right answer or how you get to this point.
r=4100x-300
e=1900x-19900
oct.
4100x=300
1900X+19900
sept.
r=4100x+300
e=1900x+19900
aug.
r=4100x-300
e=1900+19900
sept.
If only someone could explain
Again, the one person who is willing to put up the answers to help those who want to either check if they're correct and want to see what they did wrong or for those who dont want to try and are stupid.
Solving Systems Using Tables and Graphs quiz
1.D
2.A (-4, -3)
3.B September
4.C -2x - y = 9 3x - 4y = -8 is (Independent)
5.B 12x + 3y = 12 y = -4x +5 (Inconsistent)
This is 100% correct, and I know there are people who like to put up the wrong answers for some sick twisted reason, I am not one.
Thank Me is 100% correct.
Thanks
5/5 thanks! Thank Me
4) B Inconsistent { 12x + 3y = 13} { y = -4x + 5}
[[[Sorry, i had accidentally hit submit when trying to type out the 4th answer!]]]
Thank Me is correct!!! Thanks a bunch, I was struggling with this
The answers for this, Solving Systems Using Tables and Graphs Unit 4 Lesson 1 for anyone who have 4 questions instead of 5 questions are
1) D (3, 1) where one line goes through -2 on the Y-axis and 2 on the X-axis
2) B (-3, 4) for solving system with table { -0.6x - 0.6y = -0.6} and { 0.5x - 0.3y = -2.7}
3) September
4)
do a least-squares fit to find the best lines for r and x:
r(m) = 4100m + 300
x(m) = 1900m + 19900
for month #m.
So, r=x when
4100m+300=1900m+19900
m = 98/11, or 9: September
r(9) = 37200
x(9) = 37000
september
Doragon is correct if you have 4 questions
To predict the month in which revenue will equal expenses, you'll need to find the value of "x" (the month) that makes the revenue and expenses equations equal. Here's how you can do that:
1. Start by writing the equations for revenue (r) and expenses (e) as given by the models:
- Revenue: r = 4100x - 300
- Expenses: e = 1900x - 19900
2. Now, set the equations equal to each other:
4100x - 300 = 1900x - 19900
3. Next, solve for x. Simplify the equation:
4100x - 1900x = -300 - (-19900)
2200x = 19600
4. Divide both sides of the equation by 2200 to isolate x:
x = 19600 / 2200
x = 8.9
Since "x" represents the month, we can see that it is a decimal value. In this case, it means that the revenue will equal expenses in the ninth month, which is September.
Therefore, the prediction is that revenue will equal expenses in September.