Call Canada's population
, and call the U.S. population
.
We see that
. Substituting 32 million for c, we see that
. Multiplying by ten, we see that
. By using Algebra properly, we have ensured that the number of zeroes in our final answer is correct.
Answer:
m = -2
Step-by-step explanation:
As one goes from (2, 7) to (4, 3), we note that x increases by 2 and y decreases by 4. Thus, the slope is m = rise / run = -4/2, or -2
The slope of the line connecting these two points is -2.
Given the equation
Check all options:
A. , this means that Substitute these numbers into the left side of the equation equation:
This option is false.
B. , this means that Substitute these numbers into the left side of the equation equation:
This option is false.
C. , this means that Substitute these numbers into the left side of the equation equation:
This option is false.
D. , this means that Substitute these numbers into the left side of the equation equation:
This option is true.
Answer: correct choice is D.
Answer:
a = -10
Step-by-step explanation:
33 - 4a = 73
To get <em>a</em> by itself, you must move 33 to the other side. To this, you must subtract it from both sides, canceling it out on the left side.
You will be left with: -4a = 73-33
Subtract 73 and 33, which will get you 40.
Now the equation is -4a = 40
To get <em>a </em>by itself, divide -4 into both sides. Doing this will isolate <em>a</em>.
The equation you will have after that is a = 40/-4.
Divide 40 by -4, which will get you -10.
Therefore, a = -10.