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kiruha [24]
3 years ago
5

During a company's first full year in business, the price of oil increased $50. In the second year of business, the price of oil

went down $50 from its price at the beginning of that year. Its price at the end of the second year is what percent of its price at the beginning of the first year?
Mathematics
1 answer:
Nonamiya [84]3 years ago
6 0

Answer:

Step-by-step explanation:

Um 150 x 2 divided by 4 i believe

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The distance Train A travels is represented by d = 67t, where d is the distance in kilometers and t is the time in hours. The di
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Answer:

Train A's unit rate is 67 km per hour.

Train B's unit rate is 75 km per hour.

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Step-by-step explanation:

Train A

Distance traveled by Train A is represented by :

d=67t

where d represents distance traveled in kilometers and t is the time in hours.

To find the unit rate of Train A, we will plugin t=1 and get the distance traveled by Train A in 1 hour which will be the unit rate of Train A in km/hr.

d=67(1)

d=67

So, distance traveled by Train A in 1 hour = 67 km

∴ Train A's unit rate is 67 km per hour.

Train B

For Train B, we are given the table for the time in hours and distance traveled in that duration.

Taking time =2 hours the distance traveled by Train B= 75 km

To find distance traveled in 1 hour we apply unitary method.

2\ hr = 150\ km

So 1\ hr = \frac{150}{2}\ km = 75\ km

So, distance traveled by Train B in 1 hour = 75 km

∴ Train B's unit rate is 75 km per hour.

Difference in units rates = 75-67=8\ km/hr

On comparing their unit rate i.e. the speed of the trains we find out that Train B is faster than Train A by 8 km/hr

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