Answer:
x = (c+a)/2
y = (c-a)/2
Step-by-step explanation:
Add the two equations and you get ...
(x +y) +(x -y) = (c) +(a)
2x = c+a
x = (c+a)/2
--
Subtract the second equation from the first and you get ...
(x +y) -(x -y) = (c) -(a)
2y = c-a
y = (c-a)/2
_____
Comment on this problem
This is what I call a "sum and difference" problem. The solution shown here is (obviously) the generic solution to such a problem. Remembering this can get you quickly to the answer any time you're given the sum of two unknowns and their difference.
Domain refers to all of the x-values that satisfy the line, and the range refers to all of the y-values that satisfy the line.
Since t corresponds to the x-ordinates, then the domain becomes:
0 ≤ t ≤ 6
and the range becomes:
0 ≤ v ≤ 150
In short, the answer is (A)
Answer:
<u><em>5.25 inches or </em></u>
<u><em> inches</em></u>
Step-by-step explanation:
<u><em>I believe that the question is what do they multiply to..? If so, we start by </em></u><u><em>making them both in decimal form:</em></u>
<u><em>7 / 2 = 3.5</em></u>
<u><em>3 / 2 = 1.5</em></u>
<u><em>Now, we </em></u><u><em>multiply</em></u><u><em>:</em></u>
<u><em>3.5 * 1.5 = 5.25</em></u>
<u><em>If you want fraction form, we can turn .25 to 1/4.</em></u>
<u><em>Fraction form: </em></u>
Answer:
The given system has NO SOLUTION.
Step-by-step explanation:
Here, the given system of equation is:
6 x - 2 y = 5 .......... (1)
3 x - y = 10 .... (2)
Multiply equation 2 with (-2), we get:
3 x - y = 10 ( x -2)
⇒ - 6 x + 2 y = - 20
Now, ADD this to equation (1) , we get:
6 x - 2 y - 6 x + 2 y = 5 - 20
or, 0 = - 15
WHICH IS NOT POSSIBLE as 0 ≠ -15
Hence, the given system has NO SOLUTION.
