Answer:
y= -7 and x= -1
Step-by-step explanation:
To do this, line up the variables so it looks like this...
y-6x=-1
y-3x=-4
The reason why -6x and -3y changes to negative is because that it moved to the other side of the equation.
distribute negative to the bottom equation because the two equations have the same number variable which is y...
y-6x=-1
-y+3x=4
Y cancels out and it will be left with -3x = 3.
X = -1.... plug that in to any of the two equation and you get y = -7.
Hope I helped and have a nice day!!
Answer:
This means c=100. The factored form is 
.
Step-by-step explanation:
A perfect square is a trinomial that factors into the form 
. To find the value of C to finish the perfect square divide 20 by 2 and square it.
20/2 = 10
10*10=100
This means c=100. The factored form is .
Answer:
Eggs: 25 cents ea.
Pounds of peanuts: $2.50 ea.
Rolls of toilet paper: 50 cents ea.
Apples: 35 cents ea.
Step-by-step explanation:
This is assuming you meant $3 for 12 eggs, and $2 for 4 rolls of toilet paper.
For the eggs, I did 3 / 12 = .25 (aka 25 cents);
For the peanuts: 7.50 / 3 = $2.50;
For the toilet paper: 2 / 4 = .50 (aka 50 cents);
For the apples: 3.50 / 10 = .35 (aka 35 cents).
Hope this helped ~
:D
Answer:
A. 1/4
Step-by-step explanation:
We know that before the 1st bounce, the height of the ball is 512 inches.
Say the fraction is x.
Then, after the first bounce, the height of the ball is 512 * x = 512x.
After the second bounce, the height is now x * 512x = 512x².
By similar reasoning, the height after the third bounce is 512x³ and after the fourth bounce, it is 
.
We also know that after the fourth bounce, the height is 2 inches. So, set 2 equal to :
2 =
Divide both sides by 512:
Take the fourth root of both sides:
![x=\sqrt[4]{1/256} =1/4](https://tex.z-dn.net/?f=x%3D%5Csqrt%5B4%5D%7B1%2F256%7D%20%3D1%2F4)
Hence, the answer is A.
<em>~ an aesthetics lover</em>
Answer:
15 is 30 percent of 50 hope this helps
