Need ASAP. What is the measure of angle T??
1 answer:
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Answer:
<em>Roberto's speed in still water is 6 miles/hour and the river speed is 2 miles/hour</em>
Step-by-step explanation:
<u>Relative Speed</u>
When a body is moving at a constant speed v, the distance traveled in a time t is:
When Roberto rows downstream, his speed in still water is added to the speed of the water, making it easier to travel the required distance.
When Roberto rows upstream, his speed in still water is affected by the speed of the water, both are subtracted and the required distance is covered in more time.
Let's call
x = Roberto's rowing speed in still water
y = Speed of the river current
The speed when rowing downstream is x+y, thus the distance traveled is
Where t1=2.5 hours. Substituting values:
Rearranging, we find the downstream equation:
The speed when rowing upstream is x-y, and the distance traveled is
Where t2=5 hours. Substituting values:
Rearranging, we find the upstream equation:
Multiplying [1] by 2:
Adding this equation to [2]:
Solving:
Dividing [2] by 5:
Solving for y
Thus, Roberto's speed in still water is 6 miles/hour and the river speed is 2 miles/hour
Time taken to collect 12 different state quarters is 2.5 months.
Now , we need to find time taken to collect all 50 state quarters.
Let , time required is x.
So,
Therefore, time required is 10.7 months.
Hence, this is the required solution.
Answer:
Follows are the solution to this question:
Step-by-step explanation:
The missing data is defined in the attached file please find it.
Given:
Admission Status
In point A:
The overall percent of applicants, which is Asia:
In point B:
The overall percent of the students, who admitted to Asia:
In point C:
The Asian percentage approved:
In point D:
The number of all students admitted:
