I just took the test. The correct answer is:
X-3y=24 and 5x + 3y = -6  Solve by graphing
1 answer:
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Answer:
772.8 km
Step-by-step explanation:
Speed is the rate of change of distance. Speed is the ratio of distance travelled to time taken. Average speed is the ratio of the total distance travelled to the total time taken, it is given by:
Average speed = Total distance / total time
The 20 07 train leaves Paris at 20:07 and reaches Montpellier at 23:34. This means that the total time taken is 3 hours 27 minutes, that is 3.45 hours.
Given that average speed is 224 km/h, hence:
Average speed = total distance / total time
224 km/h = total distance / 3.45 h
total distance = 224 * 3.45 = 772.8 km
Answer:
Step-by-step explanation:
Hi there!
Linear equations are typically organized in slope-intercept form: where <em>m</em> is the slope and <em>b</em> is the y-intercept (the value of y when x=0)
Perpendicular lines always have slopes that are negative reciprocals. For example, 2 and -1/2. 3/4 and -4/3.
To determine whether a line is perpendicular to , we must first determine its slope. Rearrange the given equation into slope-intercept form:
From this, we can clearly tell that the slope (<em>m</em>) of the line is .
The negative reciprocal of is 2. Therefore, the slope of a perpendicular line would be 2.
Therefore, the correct answer option would be .
I hope this helps!