Answer: Option <span>C. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -3. The solution to system B will be the same as the solution to system A.
First equation of system A multiplied by -3:
(-3)(x+6y=5)
(-3)(x)+(-3)(6)=(-3)(5)
-3x-18=-15
Sum of the second equation of system A and the first equation multiplied by -3:
(-3x-18)+(3x-7y)=(-15)+(-35)
-3x-18+3x-7y=-15-35
-25y=-50
System B
x+6y=5
-25y=-50 </span>
Answer:
the slope of the line is 2 over 1 which means the answer is 2
the rate of change is c
To find the slope of the line you have to go rise over run.
to find the rate of change you have to see how much does the numbers in y go by.
Answer:
x > -9
Step-by-step explanation:
The solution to the inequality is obtained as follows:
-3x -7 < 20
-3x - 7 + 7 < 20 + 7
-3x < 27
-3x/(-3) > 27/(-3)
x > -9
Notice that when you divide by a negative number, the inequality sign changes.
In the picture attached, the graph of the solution s shown. Notice that -9 is not included in the solution.
3/5 is bigger because 4/7 = 20/35 and 3/5 = 21/35
Answer:
(1/2, 0)
Step-by-step explanation:
To find the y-intercept, set x = 0 and find y: y = 4(0) - 2 = -2, so that we have the point (0, -2).
To find the x-intercept, set y = 0 and find x: 0 = 4x - 2, or x = 1/2, so that we have the point (1/2, 0). This corresponds to the first answer choice.
