$4/3=$1.33 per pound.
$9/8 = $1.13 per pound.
The second one is cheaper.
Answer:
(-11,-5)
Step-by-step explanation:
The x-axis is where you go left and right.
The y-axis is where you go up and down.
The point (-7,1) is in format: (x,y).
Since we are going to the left 4 units, we will add -4 to -7 for x.
x = -7 + (-4)
x = -11
Since we are going down 6 units, we will add -6 to 1 for y.
y = 1 + (-6)
y = -5
The new point is (-11,-5)
Box 2 I believe is correct because 3 x 1 x 2 is 6.
(a) Answer: One solution.
Explanation: two lines that have same slope with opposite sign will necessarily cross each other at a single point, as one is "pointing uphill" and the other "downhill."
(b) Answer: Infinitely many solutions.
Explanation:
2x + 3y = 5.5
4x + 6y = 11 | divide by 2
-->
2x + 3y = 5.5
2x + 3y = 5.5
--> equations are identical.
2x + 3y = 2x + 3y
so any (x,y) will satisfy this equation. This means infinitely many solutions.
(c) Answer: One solution
Explanation:
Continuing the two lines it becomes obvious they will cross at one point (the solution)
(d) Answer: No solution
Explanation: If the two lines are parallel, they will never cross (by definition of "parallel"). Therefore there will be no solution to the corresponding linear system.
Answer:
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