Answer:
18 weeks
Step-by-step explanation:
Let the number of weeks be represented by a variable x;
Beginning balance = 450
Ending balance= 180
Amount spent per week= 15
Amount spent in x weeks = 450-180= $270
Total amount spent in x weeks = 15*x = 15x
Equate the above equations to the corresponding dollar amount;
15x=270
Next, solve for x by dividing both sides by 15
x=270/15
x= 18
Therefore, there are 18 weeks in the semester.
When we say conjecture, in math, this is defined as a statement that appears to be true but is not yet proven. Now, the question asked for the counterexample, which means, the opposite of the given statement above. Rectangle, rhombus and square are considered parallelograms. Therefore, the figure that can serve as a counterexample to the conjecture given is the TRAPEZOID. The answer would be option D.
Answer:
4
Step-by-step explanation:
you do 2x+2x+6+3x+1 as this is simplified then it is 7x+7=35 then you take away 7 and that is 7x=28 and then u do x=28/7 and then you do x=4 you can check by substituting X
Answer:
B.
Step-by-step explanation:
It is the right answer, I promise.
(3,0) (0,-3)
slope: -3-0/0-3
-3/-3
m=1
b=-3
y=x-3
-x -x
-x+y=-3
-1(-x+y=-3)
x-y=3
There's a possiblity that I'm wrong. It's been a while since I've done this.
