Answer:
53.5 km/h
Step-by-step explanation:
Average speed = distance /time
Total time in hours = 30/60 + 12/60 + 45/60 + 15/60
= 0.5 + 0.2 + 0.75 + 0.25
= 1.7 hours
Distance = Speed / time
Total distance covered = (0.5*80) + (0.2*105) + (0.75*40)
= 40 + 21 + 30
= 91 km
Average speed of the entire trip = 91/1.7
= 53.5 km/ h
Answer:
21.908
Step-by-step explanation:
Answer:
<h3>Use formula of acceleration = final velocity - initial velocity / time taken or, v - u / t</h3>
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Answer:
Write the expression (−15.5) + 35.5 in a different way, using the commutative
Answer:coefficient of x term is 8
Step-by-step explanation:I(2x-5)(x2-3x2+4)
(2x-5)(-2x2+4)
-4x3+8x+10x2-20
coefficient of x is 8