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steposvetlana [31]
3 years ago
13

A league of 16 teams is playing a "round-robin" style tournament, where each team plays every other team exactly once. how many

games total need to be played?
Mathematics
1 answer:
Akimi4 [234]3 years ago
8 0
There are 8 games played at the same time, and each team playes 15 round (plays every team but themselves. this means that the total amount of games is 8x15, which is 120 games
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4) Arnold ate breakfast at a restaurant. His total came to $76.75. There is an 8% sales tax and 15% tip. What is Arnold's total
lisov135 [29]

Answer:

The total cost is $95.32.

Step-by-step explanation:

Given:

Total came to $76.75. There is an 8% sales tax and 15% tip.

Now, to find the total cost.

<em>8% sales tax is there so we calculate the amount after adding sales tax:</em>

$76.75 + 8% of $76.75

76.75+\frac{8}{100}\times 76.75

76.75+0.08\times 76.75

76.75+6.14

82.89

The cost after sales tax is $82.89.

Now, <em>the cost after 15% tip:</em>

$82.89 + 15% of $82.89

82.89+\frac{15}{100}\times 82.89

82.89+0.15\times 82.89

82.89+12.43

95.32

The cost after the tip is $95.32.

Therefore, the total cost is $95.32.

8 0
3 years ago
A small business owner has created a linear regression model to predict the number of new customers who will visit a shop based
coldgirl [10]

Answer: Explanatory variable = " number of times the owner has an advertisement played on the radio"

Response variable = "number of new customers who will visit a shop"

Step-by-step explanation:

  • An explanatory variable is a kind of independent variable that can be manipulated by researcher in a study to check the response of the response variable.

In the given situation , the business owner is predicting the number of new customers who will visit a shop based on the number of times the owner has an advertisement played on the radio.

Here , He is controlling the advertisement played on the radio to see the response of customers.

Therefore ,

Explanatory variable = " number of times the owner has an advertisement played on the radio"

Response variable = "number of new customers who will visit a shop"

4 0
2 years ago
2x + y = 9<br>3x - y = 16​
snow_tiger [21]

Answer:

X=7 y=-5

Step-by-step explanation:

2x+y=9

3x-y=16

use the process of elimination finding out what works for one problem and try it on the other until they both work

7 0
3 years ago
Read 2 more answers
Help help help help (question 6)
garik1379 [7]

Answer: I got C.

Step-by-step explanation: I squared both 3.9 and 9.7 which gave me 109.3. Then, I square rooted it and got 10.45 which rounds to 10.5. Hopefully, this is right.

8 0
3 years ago
I need help with which equations represents proportional relationships
OLga [1]

Answer:

x=1/4y

Step-by-step explanation:

Step 1: You flip the equation

4x=y


Step 2: Divide both sides by 4


4x/4 = y/4


x=1/4y

8 0
3 years ago
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