I need help I don’t understand and I need to show my work who would help me??
2 answers:
Answer: b
Step-by-step explanation:
In the last question, you wrote on a second equation "13x ...." kkk
Let's go:
We have to check each one answer in the following system:
x - 2y = 7
3x + 7y = 8
I can use the substituition method to solve this system...
x = 7 + 2y
3x + 7y = 8
3(7 + 2y) + 7y = 8
21 + 6y + 7y = 8
13y = 8 - 21
13y = -13
y = -1
x = 7 + 2.(-1)
x = 5
Finally, the correct answer is the second one (letter b).
The answer is B! I hope this helps. Enjoy the holidays
You might be interested in
I think this is how you do it...hope it helps
Answer:
Each raffle ticket cost $3.
1. 7 1/2
2.5 1/3
3. 7 1/2
4.9 3/5
Average speed = total distance/ total time
210.6/1.3= 162
A = L * W
W = L - 5
these are in inches...
length width area
10 5 50 in^2
9 4 36 "
8 3 24 "
7 2 14 "
6 1 6 "