It's 96 if you were wondering
Step-by-step explanation:
<u>Given:</u>
- Total distance is 500 km
- Total time is 5 1/2 h
- The distance travelled at 100 km/h is x
- The distance travelled at 80 km/h is y
<u>We know that:</u>
<u>Considering all the info we can make below chart:</u>
Nikolas' car trip
<u> | at 100 km/h | at 80 km/h | Total |</u>
<u>Distance | x | y | 500 km |</u>
<u>Time | x/100 | y/80 | 5 1/2 h |</u>
It is parallel, which means that the new line should have the same slope of the given line

and the slope is the coefficient of x
so the slope = -5/4
in order to solve this problem we have to know the equation of the slop

where (x1,y1) is the point by which the new line passes through


-5(x-1)=4(y+4)
-5x +5=4y+16 (by subtracting 16 from both sides)
-5x -11= 4y (divide both sides by 4)
y=
Answer: 1.3125
Step-by-step explanation: Rise over run so 21/16, which if you open up your calculator you can divide 21 by 16 and your answer is 1.3125. Have a great day and message me with any more questions!
Answer:
Step-by-step explanation:
7x - 4y = 3y - 14
7x - 7y = -14
-7y = -7x - 14
y = x + 2