B is the answer because none of the others will be right and b is the one you should always do when to solve a rea word problem
Y^2 -11y = 0
We can factor it:
y * (y -11) = 0
So y = 11, 0
Answer:
The third one
Step-by-step explanation:
Answer:
388 miles in one hour.
Step-by-step explanation:
You divide 1,940 by 5.
Answer:
The system of equations has a one unique solution
Step-by-step explanation:
To quickly determine the number of solutions of a linear system of equations, we need to express each of the equations in slope-intercept form, so we can compare their slopes, and decide:
1) if they intersect at a unique point (when the slopes are different) thus giving a one solution, or
2) if the slopes have the exact same value giving parallel lines (with no intersections, and the y-intercept is different so there is no solution), or
3) if there is an infinite number of solutions (both lines are exactly the same, that is same slope and same y-intercept)
So we write them in slope -intercept form:
First equation:

second equation:

So we see that their slopes are different (for the first one slope = -6, and for the second one slope= -3/2) and then the lines must intercept in a one unique point. Therefore the system of equations has a one unique solution.