Answer:
(-2, 3)
Step-by-step explanation:
Given the system of equations:
-3x + 2y = 12
x = 2y - 8
You can 'substitute' the expression '2y - 8' for the value of 'x' in the first equation and solve for 'y':
-3(2y - 8) + 2y = 12
Distribute: -6y + 24 + 2y = 12
Combine like terms: -4y + 24 = 12
Subtract 24 from both sides: -4y + 24 - 24 = 12 - 24 or -4y = -12
Divide both sides by -4: -4y/-4 = -12/-4 or y = 3
Use y = 3 to solve for 'x':
x = 2(3) - 8 or 6 - 8
x = -2
(-2, 3)
Answer:
Step-by-step explanation:
One coin
Answer:
Jenna will complete remaining distance in 6 hours.
Step-by-step explanation:
Since we know that 
. Let us find the rate at which Jenna traveled 100 miles.
Remaining distance is 400-100=300.
Now let us find the time Jenna will take to travel 300 miles.
Therefore, Jenna took 6 hours to complete remaining distance.
