Answer:
by dividing 325 by 48.
The answer comes out to 6.77
But since the number of buses must be a whole number, we will need 7 buses to carry the 325 students and teachers on a field trip.
so the answer is 7 buses
AnswerASK THE TEACHER
Step-by-step explanation:
Answer:
110
Step-by-step explanation:
6 + 13x + 7x + 14 = 180
20x + 20 = 180
20x = 160
x = 8
Therefore, 6 + (13 * 8) = 110
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Answer:
1. 22583.5 J
2. 1248 kg
3. 78.09 m/s
Step-by-step explanation:
The formula for kinetic energy is ;
K.E = 1/2* m * v²
Where m is the mass and v is the velocity
1.
K.E = 1/2 * m*v²
K.E = 1/2 * 47 * 31²
K.E = 22583.5 J
2.
Velocity = 9.78 m/s.
Kinetic energy = 60,800 J
To get mass, apply the formula as;
K.E = 1/2 * m*v²
60,800 = 1/2 * m * 9.78²
60800 = 48.70845 m
60800/48.70845 = m
1248 = m
Mass = 1248 kg
3.
K.E = 143.3 J
Mass = 0.047 kg
Apply the formula;
K.E = 1/2 * m*v²
143.3 = 1/2 * 0.047 * v²
143.3 = 0.0235 v²
143.3/0.0235 = v²
6097.87 = v²
v = √6097.87
v= 78.09 m/s
Answer:
128
Step-by-step explanation:
