Answer:
1 hour after they leave
Step-by-step explanation:
The distance each travels is proportional to its speed. The given speeds are at right angles to each other in a 5:12 ratio. The Pythagorean theorem tells you the hypotenuse of such a right triangle will have length ...
√(5²+12²)=√169 = 13
That is the speeds are in the ratio 5:12:13, where 13 represents the relative separation speed. Actual speeds are then 50 mph : 120 mph : 130 mph.
So the distance between the boat and steamer will be increasing at 130 mph. The distance will be 130 miles after 1 hour.
So with this, you'll be using a proportion to solve it. And here's what your equation will look like:
Firstly, you'll need to cross-multiply. Your equation will look like this:
For this, all you need to do is square root, and your answer is , however this answer can be simplified further.
In short, your answer is
X should equal -13.33. Y is correct, 13.33
Answer:
The y intercept is 5. Usually, this is the number that is by itself with no variable by it. Ex: y= 5x <u><em>+ 4</em></u>. 4 would be the y intercept.
Step-by-step explanation: