Answer:
1
Step-by-step explanation:
Answer:
No, he is incorrect because he forgot to multiple the negative by the x, and only multiplied 3 by x instead of -3 by x.
Step-by-step explanation:
The correct re-write of this expression is:
-3x - 30
50 km/h = 4 hours
60 km/h = x hours
50x = 60×4
50x = 240
x = 4.8 hours
Answer:The value of z can be calculated by doing thefollowing steps;
Step-by-step explanation:
Answer:
-14
Step-by-step explanation: