Find the solution to the system of equations-2 + 2y = -4 3x + 3y = -18
2 answers:
Answer:
x = -2 and y = -4
Step-by-step explanation:
use elimination or subatitution method
Answer:
Step-by-step explanation:
-2x + 2y = -4 (times 3) -6x + 6y = -12
3x + 3y = -18 (times 2) 6x + 6y = -36
.
-6x + 6y = -12
<u>6x + 6y = -36 </u>+
12y = -48
y = -4
.
Substitute the value of y to the one of equations
-2x + 2(-4) = -4
-2x - 8 = -4
-2x = -4 + 8
-2x = 4
x = -2
You might be interested in
if its diameter is 4 inches, then its radius is half that, or 2 inches.
Answer:
16 feet
Step-by-step explanation:
The geometry of the problem can be modeled by a right triangle. The Pythagorean theorem tells us the relationship between the various distances.
EH² +HF² = EF²
EH² + 12² = 20²
EH² = 400 -144
EH = √256 = 16
The hook is 16 feet below Edna.
Answer:
The tax on a bike is $22.75. If the rate is 6.5%, how much was the original price of the bike?
x = Price of bike
6.5% * x = 22.75
flip it
x = 22.75 / 6.5%
x = 350
Step-by-step explanation:
A) angle 1 and angle 8
b) angle 3 and angle 6
c) angle 3 and angle 7
1.86 is your answer
1/3*4/5=4/15
4/14*7/1=28/15
28/15=1.86
Your answer is 1.86
Hope this helps.
