A is the correct answer
Step-by-step explanation:
The possible weight of the boxes is at least 16 which is greater than 7.
Answer:
i am not sure if it is D
Step-by-step explanation:
:)
Answer:
1 cm, 40 cm
2 cm, 20 cm
4 cm, 10 cm
5 cm, 8 cm
Step-by-step explanation:
Area of rectangle = L x W
L x W = 40
Possible whole number combinations of length and width are
1, 40
2, 20
4, 10
5, 8
Let's find the expressions for the length and width of the rectangle. The length (which we will call <em>l</em>) is 2 units less than some undefined number, thus we will use the variable <em>x</em>:
l = x - 2
The width is 4 more than this length:
w = l + 4 = (x - 2) + 4 = x + 2
Now, given that we have the length and width and are looking for the area, we need to multiply these expressions together.
One way to write this would simply be (x + 2)(x - 2). If we wanted to find a different way of writing the area, we could use FOIL to find all terms and get x^2 - 4.
For the linear system :
r+t = 20 and 5(r+t) = 150
If you sub in the first equation into the second, you will get: 100 = 150, which is incorrect
It means the system does NOT have solutions.
Answer will be the last choice
