Let the rate of the current be x mph and rate of the boat in still water be y mph.
So the relative speed of the boat with the current ( downstream) = y + x and against the current (upstream) it = y - x.
Then , using speed = distance / time:-
y - x = 120/3 = 40
y + x = 120/2 = 60
Adding the 2 equations:-
2y = 100
y = 50
And substituting in the frst equation:-
50 - x = 40
x = 10
Answer:- Rate of boat in still water = 50 mph and rate of the current = 10 mph.
Answer:
y = -4x + 1
Step-by-step explanation:
Slope intercept form is y = mx + b.
The slope can be found by using the formula (y2-y1)/(x2-x1)
So (5-(-3))/(-1-1) which equals 8/-2 which can be simplified to -4.
Also this problem only has one answer with a slope of -4.
It’s the second one because it can’t be half but it can be 1/4 and if you do the measurements you can tell it is the second one
117 is 25% of 468.
Explanation:
Simple way to find percentages, is make it into a fraction.
117/468, then divide 117 by 468.
Which is .25 or 25%
Hope this helps!
Unit rate is 6.25. 300 divided by 48 is 6.25