SOLUTION: A car is traveling on a road that is perpendicular to a railroad track. When the car is 30 meters from the crossing, the car's new collision detector warns the driver that there i
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Question 205133This question is from textbook Elementary and Intermediate Algebra
: A car is traveling on a road that is perpendicular to a railroad track. When the car is 30 meters from the crossing, the car's new collision detector warns the driver that there is a train 50 meters from the car and heading toward the same crossing. How far is the train from te crossing?
This question is from textbook Elementary and Intermediate Algebra
You can put this solution on YOUR website! A car is traveling on a road that is perpendicular to a railroad track.
When the car is 30 meters from the crossing, the car's new collision detector
warns the driver that there is a train 50 meters from the car and heading
toward the same crossing. How far is the train from the crossing?
:
The problem is a right triangle, one leg is the dist from the car to the crossing
The hypotenuse is the dist from the car to the train
let x = dist from the train to the crossing
;
x^2 + 30^2 = 50^2
:
x^2 + 900 = 2500
:
x^2 = 2500 - 900
:
x^2 = 1600
x =
x = 40 meters train to the crossing
