Answer:

is reasonable.
is not reasonable, because the volume of the shipping box can't be negative.
Step-by-step explanation:
1. Apply the Distributive property to the given equation. Then, you have:

2. You obtain a quadratic equation, then you can use the quadratic formula to solve it:

3. Then, you obtain:

4. The volume of the shipping box can't be negative. Therefore,
is reasonable and
is not reasonable.
Answer:
speed= time/distance
speed=h/12
step-by-step explanation:
The best type of mortgage for her would be a fixed rate mortgage, because it would tell her exactly how much she is paying each month
9514 1404 393
Answer:
Step-by-step explanation:
If we let x and y represent the costs of a lamp and end table, respectively, the two purchases can be written as ...
3x +2y = 520
2x -y = 20
__
These equations can be solved many ways. If we use "elimination", we can add twice the second equation to the first to eliminate y:
(3x +2y) +2(2x -y) = (520) +2(20)
7x = 560 . . . . simplify
x = 80 . . . . . . divide by 7
y = 2x -20 = 2(80) -20 = 140
The cost of a lamp is $80; the cost of an end table is $140.