<span>In the experiment, the weight that mice gain in different environment is analyzed. So, the weight of the mice is a variable that changes depending on the circumstances. Option A is eliminated.
The color of the mouse cages is irrelevant to the experiment, because it has no impact on the weight that mice gain. Option B is eliminated.
The length of time that the mice are observed must be constant for all experiments in order to obtain valid experimental results. All experiments should be done in the same period of time under different conditions.
The temperature of the laboratory room is independent variable. This means that the weight that mice gain can depend on this variable. So, changing the temperature maybe will lead to different weight gain of the mice.</span>
Answer: After Nancy bought the sandwich, the cashier handed back $2.36
Step-by-step explanation:
Answer:
$1200
Step-by-step explanation:
78 = 6.5%
This means that if you divide 78 by 6.5, you get the equivalent of 1% of the price:
78 ÷ 6.5 = 12
So 1% = 12
Now simply multiply this by 100 to get the full
12 x 100 = 1200
So the camera cost $1200!
Hope this helps!
Answer:
2x - 7y + 17
Step-by-step explanation:
Subtracting the 2 expressions
2x - 4y + 6 - (3y - 11) ← distribute parenthesis by - 1 )
= 2x - 4y + 6 - 3y + 11 ← collect like terms
= 2x - 7y + 17
The length of the rectangle is 4 centimeters.
To find the length, you divide the area by the width (32/8=4)
