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.
Answer:
How long will it take a plane to fly 310 miles at 124 miles per hour?
A.) 1.5h
B.) 2h
<u>C.) 2.5h
</u>
D.) 3h
Step-by-step explanation:
Answer:
divide by 8
2.25 cubic units
Step-by-step explanation:
3 x 6 half cubes = 18 half cubes
one cubic unit =1/8 cubic units
18/8=2.25 cubic units
Answer: We know that the acorn falls from the height of 25 feet above the ground, it means the initial time when it falls is t = 0. The time when it lands on the ground is t = 1.25
Step-by-step explanation: never mind