There are two possible answers:
(6, -12)
(8, 14)
You can get these by taking the second equation and plugging it in for y in the first equation. Then solve using the quadratic formula.
Answer:
b) 5 pairs of jeans
Step-by-step explanation:
10 pairs of jeans give you $120. To get a profit of $60, divide the number of jeans by 2 since 60 is half of 120. You end up with 5 pairs of jeans.
Answer:
A. Infity and B. is 1
Step-by-step explanation:
Answer:
C. 28
Step-by-step explanation:
Because the two lines are parallel, according to the law of co-interior angles, they will add together to 180 degrees. (Because if you slide the 4x angle down past line g, they lie on the same line on either side of g).
Therefore we can write an equation to solve for x:
4x+(2x+12) = 180
Take out of brackets:
4x+2x+12 = 180
Combine terms and move 12 to other side:
6x + 12 - 12 = 180-12
6x = 168
Divide both sides by 6:
6x/6 = 168/6
x=28
Hope this helped!