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3 years ago

in a 10 team league, each teams play every other team exactly twice. find the total number of games played in the league

1 answer:

7 0

Since it’s a 10 team league and each team plays with the other team twice then 10+10=20, thus there would be 20 games played

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nikitadnepr [17]

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2 years ago

Read 2 more answers

7x-2y=16 11x+6y=32.3<br>how to solve this math problem

Aneli [31]

Answer:

Step-by-step explanation:

These types of equations are called simultaneous equations and the method we can use to solve these type of equations is either Substitution, Elimination and Graphing.

We use substitution here because it is easier.

Equation 1

$7x-2y=16$

Equation 2

$11x+6y=32.3$

Lets take equation 1

$7x-2y=16\\7x=16+2y\\x=\frac{16+2y}{7}$

This is our equation 3 , now put it inside equation 2.

$11x+6y=32.3\\11(\frac{16+2y}{7} )+6y=32.3\\\frac{176+22y}{7} +6y=32.3\\\frac{176+22y+42y}{7}=32.3\\176+22y+42y=226.1 \\\\42y+22y=226.1-176\\64y=50.1\\y=\frac{50.1}{64} \\y=0.783\\$

We found the value of y , now to find the value of x insert the value of y in equation 3

$x=\frac{16+2y}{7}\\x=\frac{16+2(0.783)}{7} \\x=\frac{16+1.566}{7}\\x=\frac{17.566}{7}\\x=2.509$

Solved ! See the attached image on both the straight line graphs i have attached for better understanding. Where both the lines intersect each other is our value of (x , y) respectively.

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3 years ago

Every US. Citizen has a 9 digit social security number. The first 3 digits are a geographic code, the next two digits are determ

Ilia_Sergeevich [38]

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divided by
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Probability that the last 2 digits match your age = 1/100 = 0.01 = 1 % .

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3 years ago

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AnnZ [28]

Answer:

see the attachment

Step-by-step explanation:

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The best choice here is B.

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3 years ago