a train traveled 145 miles in 4.2 hours. to the nearest tenth, what was the average speed of the train in miles per hour?
1 answer:
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Answer:
Step-by-step explanation:
To solve this, all we need to do is draw a triangle.
From the we can deduce that
From that, we can draw our triangle as we know that tan(x) is the opposite side over the adjacent side. Attached is that triangle. Through the Pythagorean Theorem, we can find that the hypotenuse of this right triangle is
Now all we need to do is take the sin of this triangle, which is the opposite side over the hypotenuse
This gives us the value of which is our answer.
Answer:
The value of x is 8 gallon.
Step-by-step explanation:
Given a table showing approximate conversion from gallons to liters.
Number of Gallons 2 4 x
Number of Liters 7.6 15.2 30.4
We are required to find value of x,
Given : 2 gallon is equal to 7.6 liters.
⇒ 1 liter is equal to liters. ........(1)
given, x gallon equal to 30.4 liters.
⇒ 1 liter is equal to liters. .........(2)
from (1) and (2),
⇒
Solving for x, we get,
⇒
⇒
Approximately x = 8
Thus, the value of x is 8 gallon.