Answer:
One boys rate is "r" and the other's is (r+10)
the distance they cover is 240 miles in 3 hours
3r + 3*(r+10) = 240
6r + 30 = 240
6r = 210
r = 35 mph and the faster car is
r + 10 = 45 mph
Answer:
D
Explanation:
descriptive, because scientists are writing down the observations but not making comparisons.
Increase the change in momentum of the collision
If an object is not at Absolute Zero, then it is
absorbing and radiating thermal (heat) energy.
