Alternate exterior angles
1 answer:
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2A) C is correct.
2B) If x + 13 = 28, solve.
If x = 15 and x + 13 = 28, you can solve it two ways:
1. Plug x into 4x + 26 to get a perimeter of 86, or
2. Redo the equation:
3a. Since the 6z is negative, you want an expression the has 5z - (11z). Answers A and D have that in their answer.
But since the 13 is positive, you want the answer that subtracts the smaller number from the larger. Thus, D is your answer since it subtracts 2 from 15.
3b) You think about this question the same way; 6z is positive, so the smaller number is being subtracted from the larger, meaning that 11z - 5z is what you look for. C and D are the two that have that, so now let's look at the second term.
The 13 is negative, so you want the answer that has 2 - 15. The answer that has that is D.
Hope this helps :D
2B) If x + 13 = 28, solve.
If x = 15 and x + 13 = 28, you can solve it two ways:
1. Plug x into 4x + 26 to get a perimeter of 86, or
2. Redo the equation:
3a. Since the 6z is negative, you want an expression the has 5z - (11z). Answers A and D have that in their answer.
But since the 13 is positive, you want the answer that subtracts the smaller number from the larger. Thus, D is your answer since it subtracts 2 from 15.
3b) You think about this question the same way; 6z is positive, so the smaller number is being subtracted from the larger, meaning that 11z - 5z is what you look for. C and D are the two that have that, so now let's look at the second term.
The 13 is negative, so you want the answer that has 2 - 15. The answer that has that is D.
Hope this helps :D
Answer:
C. 3x+6y=9 and-2x-4y=4
Step-by-step explanation:
Given
Steps:
- Multiply equation 1 by 2
- Multiply equation 2 by 3
- Add the results together
The attachment completes the question
(a): -2x+4y=4 and -3x+6y=6
Multiply by 2:
Multiply by 3:
Add together
B. 3x+y=12 and -3x+6y=6
Multiply by 2:
Multiply by 3:
Add together:
C. 3x+6y=9 and-2x-4y=4
Multiply by 2:
Multiply by 3:
Add together:
This is the equation the student could have used because 0 = 30 means the equation has no solution.
