Answer:
6
Step-by-step explanation: We observe that if 288 is multiplied by (2 x 3), then its prime factors will exist in triples. Thus, the required smallest number by which 288 be multiplied to make it a perfect cube i: (2 x 3)=6. 1,331 is a perfect cube.
Answer:
16
Step-by-step explanation: because 24g reverts 40f so we have to subtract them
and get the answer
5*5=25*3.14=78.5
3*3=9*3.14=28.26
---------
49.76
It's known that Speed = Distance/Time. The truck can cover the distance of 145 miles in 2.5 hours. So its speed is 145/2.5 = 58 mi/hr. The speed of the car is 1.5 faster than the speed of the track. So the speed of the car is 58*1.5 = 87 mi/hr.
Let t = amount of time, in hours, it takes them to meet.
The distance that the truck travels in t hours would be 58t miles.
The distance that the car travels in t hours would be 87t miles.
In total they cover the whole distance when they meet. So we get
58t + 87t = 145
145t = 145
Divide both sides by 145:
t = 1
Thus it takes them 1 hour to meet.
