
put all numbers on the left

third equation is the answer

multiply by 3
3x-y=0
Answer:
Step-by-step explanation:

Answer:
C, -50*hours+475
Step-by-step explanation:
We are trying to get the total distance left, so we are subtracting the distance traveled from the total. If we travel at 50 miles per hour then the distance traveled is equal to 50*hours and if you subtract that from the total you ahve the distance left.
<u>Part A</u>
By the distance formula,

<u>Part B</u>
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<u>Part C</u>
The triangle is scalene because each side has a different length.