The two equations would be, respectively, y=12,000-400x and y=6000-300x
Set the two equal to one another and solve for x.
The answer is 60 hours
They always try to trick you with this. Remember anything 5 or above would round up, anything 4 and under would round down. So look for the tenth place. that's the 9. The number to the right is 8 which is greater than 5. That means round up. You can't round it to 0.1 because that takes it back down. So you just move it over. The answer is 1.0.
distance left to run = total distance - distance already run
= 3 miles - (13/7) miles
= 21/7 miles - 13/7 miles = 8/7 miles
Answer: 24
Explanation: If you align them from least to greatest, 24 remains as the median. 23, 24, (24,) 24, 25. I’m not sure what unit you are doing but I hope this helps!