Answer:
(7, 6)
Step-by-step explanation:
multiply first eq. by 3 to get 6x - 3y = 60
now do
6x + 3y = 60
- 6x - 5y = 12
--------------------
8y = 48
solve for y: y = 6
with this y value, plug it in to the first equation (easier to solve) and get 2x + 6 = 20
solve for x and get x = 7
so ans is (7, 6)
Answer:
it's just ( -3.3 )but I need to put 20 + words and stuff so read this if you would like
Answer:
B
Step-by-step explanation:
this equation is in the form of ax^2+bx+c
so a is 4, b is -9, and c is 8
Answer:
(4, 5 )
Step-by-step explanation:
Moving 7 left is in the x direction and means subtract 7 from the x- coordinate
Moving 5 down is in the y direction and means subtract 5 from the y- coordinate, that is
(11, 10 ) → (11 - 7, 10 - 5 ) → (4, 5 )
Store B has the lowest price.
Store A
2lb = $8.44
1lb = $4.22
0.5lb = $2.11
(1lb + 0.5lb) 4.22 + 2.11 = 6.33
1.5lb = $6.33
Store B
1.5lb = $5.85
