Hi, thank you for posting your question here at Brainy.
The path of the watercraft and the water current, when joined by a line forming a right angle would make a right triangle. From here, we can know the component in which it is along the same direction with the watercraft. Let's denote this as x.
x = 6 miles/h * cos 75 degrees
x = 1.55 miles/h
Thus, the actual speed = 70 + 1.55 = 71.55 miles/h
Just use Photomath it gives you step by step answers
Yes because if you graph it, it will pass the vertical line test
They would be 69 and 70.
Your equation would be x + (x + 1) = 139
X would be the first integer and x + 1 would be the second
You would then solve the equation to get x as 69
X + 1 would then be 70
