Two busses leave Billings at the same time. The Seattle bus heads west on I-90 at a speed of 73 miles per hour while the Chicago
2 answers:
Answer:
After 3.5 hours buses will be 532 miles apart.
Step-by-step explanation:
Here one bus is moving west and other is moving east. That is they are moving in opposite direction.
Velocity of Seattle bus = 73 miles per hour west
Velocity of Chicago bus = 79 miles per hour east
Relative velocity = 73 + 79 = 152 miles per hour
We need to find time for which for their separation 532 miles.
Time,
After 3.5 hours buses will be 532 miles apart
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Answer:
a) The maximum amount of water the aquarium can hold is 1728 in³.
b) The cover has to be 624 in² big.
Step-by-step explanation:
a) The maximum volume of water that the aquarium can have is the same as the volume of the aquarium:
V=L×W×H=18 in × 8 in × 12 in= 1728 in³
b) The protective covering is used on the four walls of the aquarium. We have to find the areas of the four walls:
One of them is given by the multiplication of the width and the height:
A₁= W×H= 8 in × 12 in=96 in²
The other area is given by the multiplication of the length and the height:
A₂= L×H= 18 in × 12 in= 216 in²
As the fish aquarium is rectangular the area of the walls is given by:
=2×96 in²+2×216 in²=624 in²