I only know the substitutional method so I am going to give you the answers.
1. (remember I am only using the substitutional method, I am doing the method wrong...)
x + y = 10, 3x - y = 2, 5(3x-y) = 5(2), 15x - 5y = 10, 15x -5y = x + y, 14x = 6y, x = 3/7 y , 3/7 y + y = 10, 10/7y = 10, 10 y = 70, y = 7, 14x = 42. x =3
y = 7, x = 3
2. What I know:
x + y = 6
x + 2x = 6
3x = 6
x = 2, y =4
3. I am using a video to help me remember.
x = 2y + 3 2x + 3y = -3.
-3 = 2y - x -3 = 3y + 2x
0 = - y + 3x, y = 3x
x = 2(3x) + 3, x = 6x + 3
-5x = 3, x = -3/5
y = 3(-3/5)
y = -9/5, x = -3/5
No, because they can only intersect each other at one point.
Hope this helped :)
The correct unit price would be $1.08 per pair of gloves. What the contractor didn't notice was it was 7 <em>dozen</em> pairs of gloves, not just seven pairs. If it had been seven pairs, she would have been correct, but it was actually 84 pairs of gloves. She needed to divide 103.32 by 84 rather than 7.
Answer:
3.23%.
Step-by-step explanation:
Please consider the complete question.
Mateo's sister Paid off her student loans $5000 in 3 years if she made a payment of $152.35 each month what was a simple interest rate for a way around it to the nearest hundred
Let us find total amount paid by Mateo's sister in 3 years.
1 year = 12 months
3 years = 12*3 months = 36 moths.


Now, we will use simple interest formula to solve our given problem.
, where,
A = Total amount after t years.
P = Principal amount,
r = Annual interest rate in decimal form,







Therefore, the interest rate was 3.23%.
Answer:
7=a
Step-by-step explanation:
look at image for step by step