Answer:
Jo started decelerating at the 10th minute
His average speed for the last 30 minutes of the journey is 4/30 km/minute
Step-by-step explanation:
To get what Jo did at 10 minute, we look at the graph.
At the 10th minute, we can see that we have a sharp turn from the top to the zero position at the 20th minute
so we can say that Jo started deceleration at the 10th minute
For the last 30 minutes of the journey, he travelled a distance of 4km
So, mathematically, his average speed will be;
Distance/ time = 4km/30 minutes = 4/30 km/minute
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Answer:
2.12 miles
Step-by-step explanation:
Answer: No solution
<u>Step-by-step explanation:</u>
1st number: x
2nd number: x + 2
- reciprocal of the larger is

- 4 times the reciprocal of the smaller is 4

- reciprocal of the larger of two consecutive even integers is subtracted from 4 times the reciprocal of the smaller is 4
- 
- the result is 56: 4
-
= 56
Solve the equation:
4
-
= 56
-
= 56(x(x + 2))
4x + 8 - x = 56x² + 112x
3x + 8 = 56x² + 112x
0 = 56x² + 109x - 8
Use the quadratic formula to solve:
x = 
The result is NOT AN INTEGER so there is NO SOLUTION
Answer:
(-2,5)
Step-by-step explanation: