9514 1404 393
Answer:
D. (-3, -2)
Step-by-step explanation:
The equations have different coefficients for x and y, so will have one solution. The solutions offered are easily tested in either equation.
Using (x, y) = (-2, -3):
x = y -1 ⇒ -2 = -3 -1 . . . . False
Using (x, y) = (-3, -2):
x = y -1 ⇒ -3 = -2 -1 . . . .True
2x = 3y ⇒ 2(-3) = 3(-2) . . . . True
The solution is (-3, -2).
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If you'd like to solve the set of equations, substitution for x works nicely.
2(y -1) = 3y
2y -2 = 3y . . eliminate parentheses
-2 = y . . . . . . subtract 2y
x = -2 -1 = -3
The solution is (x, y) = (-3, -2).
People who purchased good seats will be labeled as a
people who purchased poor seats will be labeled as b
therefore...
5a + 2b = 660
a + b = 210
Now, all that has to be done is for the system to be solved.
-2(a+b=210)
5a + 2b = 660
-2a - 2a = -420
3a=240
a= 80
*3 people purchased good seats.
Now we can plug that number in
5(80) + 2b = 660
400 + 2b = 660
2b = 260
b = 130
*130 people purchased poor seats
Your answer would most likely be
B
Answer:
36/100
Have a great day! I'm trying to spread positivity with the corona virus going around so here you go
Suffering, pain, death, what we've been seeing so recent.
It's hard not to focus on it.
You can say the same thing in so many languages yet they mean the same.
Money can't save you from death, nor the things that take your life
we strive to see some happines in our life, smiles back on people faces.
Giving people hope is all theres left hope for a better future. Sad to say things will only get worst for a period of time but there is hope for the better future that will arrive in its own appointed time!
<em>*eliza*</em>
Look at the formula A = b(h): Area of a rect. = base times height.
In the unusual situation where you'd hold the area constant and vary b and h, then A=bh could be re-written as
A
---- = h or A/h = b. In both cases we'd be working with inverse proportion,
b not direct proportion / variation.
