All of the points in the picture are on the same line.Find the values for "a" and "b". Explain your reasoning.
2 answers:
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Answer:
Mariana has better performance.
Step-by-step explanation:
We are given that in a training session, Mariana made 12 of the 15 shots on goal that she kicked and Carla had an effectiveness of 75%.
And we have to find which girl's performance is better.
Since it is stated that Carla had an effectiveness of 75%.
Similarly, we will find the effectiveness of Mariana;
Total shots available to Mariana = 15 shots
Number of shots on goal = 12
So, her effectiveness =
= = 80%
This shows that Mariana has a better performance as compared to Carla as 80% > 75%.
Answer:
<h2>María used only 792 square centimeters to cover the best seller.</h2>Step-by-step explanation:
The volume of the best seller is about a rectangular prism, which is
Where is width,
is length and
is height.
In this case, we have
Replacing values in the formula, we have
Now, according to the problem, 10% of paper covers the book, that means we need to find the suface area and then find the 90% of the paper missing. The formula for surface area is
Replacing values, we have
If 792 square centimeters is 10% of the total paper, then
Therefore, there is 7,920 square centimeters of papers, but María used only 792 square centimeters to cover the best seller.