Area of the triangle: 1/2(4) *6= 12
150- 12= 138
138/6= 23
x=23
(-2,6)
for example
x+1/2y=1
the ordered pair i will use is the first one. (-2, 6)
so
(-2) + 1/2(6)=1
from there it is a simple add/subtract and multiply/divide math problem.
1/2(6)=3
so
(-2) + 3 = 1
yes this ordered pair works for the solution meaning it is the answer.
Answer:
General Formulas and Concepts:
<u>Pre-Alg</u>
Step-by-step explanation:
<u>Step 1: Define equation</u>
rt - 2n = y
<u>Step 2: Solve for </u><em><u>t</u></em>
- Add 2n to both sides: rt = y + 2n
- Divide both sides by r: t = (y + 2n)/r
Answer:
It add up by 6.
Step-by-step explanation:
6 plus 6 is 12 plus another is 18 and it keeps going.
You can multiply either the top or bottom equation by -1 so lets say you apply it to the bottom equation it’ll look like this:
-9x + 9y = 18
6x - 9y = 12
then the +9y and -9y will cancel out
-9x = 18
6x =12
then you add the two equations together
-3x = 30
divide both sides by -3
x = -10
