Answer:
first number=2
second number=-5
Step-by-step explanation:
first number= a
second number= b
we have the following equations
7a+3b=-1 equation 1
a+b=-3 equation 2
using equation 2 we have
a=-3-b
using equation 1 we have
7(-3-b)+3b=-1
-21-7b+3b=-1
-4b=20
b=-20/4=-5 = second number
a+(-5)=-3
a-5=-3
a=-3+5
a=2= first number
We can start by saying that since f and g are parallel, and that a line cuts through them, 3x+6x+45=180. This is due to the consecutive interior angles theorem, which states that if two parallel lines are cut by a transversal (another line), the interior angles the form from it (the angles between the parallel lines) are supplementary, or add up to 180 degrees. Therefore, we have 9x+45=180. Subtracting 45 from both sides using the subtraction property of equality, we get that 9x=135. Next, we can divide both sides by 9 to isolate x, resulting in x=15.
Feel free to ask further questions!
Answer:
D
Step-by-step explanation:
so from the graph we see that at zero weeks (the start), he has 15 rocks.
each week he adds 5 rocks. (he is at 30 rocks after 3 weeks)
This narrows the choices down and D is our answer
Answer:
1) 8%
2) 18 groups
3) b. 23 groups
Step-by-step explanation:
2/25 × 100 = 8%
One each group: 2/25
2/25 × 224 = 17.92
Atleast 2 freshmen: 5
5/25 × 115 = 23
Answer:
5. Slope = -2x
(Full system: y = -2x + 5)
6. Slope = -1/2x
(Full system: y = -1/2 +6)