Answer:
8
Step-by-step explanation:
Answer:
b. $62
Step-by-step explanation:
First, we need to add up the cost of all the chairs.
48.5 x 6 = 291
All the chairs together cost $291
Now we can take out the cost of the chairs from the total.
663 - 291 = 372
$372 is what's left over for the cost of all the tables together. So we are going to divide by the number of tables to find out how much each table costs.
372 / 6 = 62
Each table costs $62
Answer:
28-8 is the answer simplified but not yet complete
20 is the final answer
Step-by-step explanation:
Hope this helps :)
Answer:
Kathy would take 7.56 seconds to run each of the 8-time segments of the 400-meter dash.
Step-by-step explanation:
Kathy ran the 400-meter dash in 60.48 seconds, so if she now divided that time into 8 equal time segments we have:

By dividing the above equation into 8:

Hence, she would take 7.56 seconds to run each of the 8-time segments of the 400-meter dash.
I hope it helps you!
Answer:
No this is a not good experimental design
Step-by-step explanation:
In an experiment, we seek to establish cause an effect relationship. The effect of one variable on another is examined while keeping other variables constant. A control often establishes the validity of the experiment.
Now the ten rubber bands were selected at random from each box. The experimental group was put in a freezer while the control group was maintained at room temperature.
Comparison of the mean stretch before breakage of the rubber bands in both groups establishes the effect of cold temperature on elasticity of rubber bands.
However, this is not a good experimental design because the sample rubber bands should have been picked from different boxes of brand A and B and not from the same box.
Secondly, samples from the two brands should have been put in the freezer and kept at room temperature. That is, ten rubber bands from A are put on the freezer and another 10 are left at room temperature. 10 rubber bands from B are put in the freezer and another 10 are left at room temperature.
The mean elasticity of the both groups can now be meaningfully compared from the data obtained.