Answer:
The solution set is (-20/9, -95/9)
Step-by-step explanation:
To solve using the substitution method, start by solving the second equation for y.
1/3y = 7/3x + 5/3
y = 7x + 5
Now that we have this, we can plug it in for y in the first equation. Then we can solve for x.
-4x - 2(7x + 5) = 30
-4x - 14x - 10 = 30
-18x - 10 = 30
-18x = 40
x = -20/9
Now that we have the value of x, we can solve for y by inputting the x value into either equation.
-4x - 2y = 30
-4(-20/9) - 2y = 30
80/9 - 2y = 30
80/9 - 2y = 270/9
-2y = 190/9
y = -95/9
Answer:
it takes the commuter train 60 seconds to go 3 feet
Answer:
Infinitely many solution
Step-by-step explanation:
There seems to only be 1 line so they must have the same solutions.
No it’s is not proportional because for every mile he would have to burn exactly 117 calories and the ratio of the happening is very slim
Hi how are you I’m good math is hard
