The domain is (-inf,+inf) and the range is (-inf,8]
Answer:
x = 3; y = -6
Step-by-step explanation:
x - 2y = 15
2x + 4y = -18
Multiply both sides of the first equation by 2. Write the second equation below it, and add the two equations.
2x - 4y = 30
(+) 2x + 4y = -18
---------------------------
4x = 12
4x/4 = 12/4
x = 3
Now we substitute 3 for x in the first equation and solve for y.
x - 2y = 15
3 - 2y = 15
-2y = 12
y = -6
Answer: x = 3; y = -6
Answer: 68 miles per hour 2
204 miles/3 hours = 68 miles per hour
i hope this helps you ok :)
If 5000 gets increased by 200, then you end up with 5200.
if 900 gets increased by 200, then it'd be 1100.
so in short, if we take 5200 to be the 100%, what is 1100 in percentage from it?
Answer:
The answer to your question is:
Julie weights = 52.5 lbs
Mike weights = 157.5 lbs
Ted weights = 105 lbs
Step-by-step explanation:
Ted = T
Julie = J
Mike = M
Equations
T = 2J
M = 3J
M + J = 210
3J + J = 210
4J = 210
J = 210 / 4
J = 52.5 lbs
M = 3(52.5)
M = 157.5 lbs
T = 2(52.5)
T = 105 lbs
