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s344n2d4d5 [400]
1 year ago
15

LIMITED TIME PLS HELP: Four, two-person tennis teams played tennis matches. Ivan collected the number of points won by both play

ers on each team and arranged the information into matrices as shown below
Consider the total number of points played by each tennis team. How many teams won 60 points or less?

0
1
2
3

Mathematics
2 answers:
Marina86 [1]1 year ago
8 0

For this, you just need to add up the team points together. Also remember that the problem says "60 pts or less", not "less than 60 pts". This means teams with 60 pts will count for the question.


Team 1: 38+22=60


Team 2: 42+18=60


Team 3: 21+42=63


Team 4: 25+40=65


From the math above, we can conclude that 2 teams had won 60 or less.

Alexeev081 [22]1 year ago
6 0

Answer:

<h2>Team 1 and Team 2.</h2>

Step-by-step explanation:

To know how many teams won 60 points or less, we just need to sum all points per team and see which one is restricted to 60 points or less.

<h3>Team 1</h3>

38 + 22 = 60

<h3>Team 2</h3>

42 + 18 = 60

<h3>Team 3</h3>

21 + 42 = 63

<h3>Team 4</h3>

25 + 40 = 65

According to the given information, only two teams won 60 points, which are Team 1 and Team 2.

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Find the missing probability. P(A)=15,P(A∪B)=1225,P(A∩B)=7100 ,P(B)=?
Llana [10]

Answer:

<h2>p(B) = 8310</h2>

Step-by-step explanation:

We will use the addition rule of probability of two events to solve the question. According to the rule given two events A and B;

p(A∪B) = p(A)+p(B) - p(A∩B) where;

A∪B is the union of the two sets A and B

A∩B is the intersection between two sets A and B

Given parameters

P(A)=15

P(A∪B)=1225

P(A∩B)=7100

Required

Probability of event B i.e P(B)

Using the expression above to calculate p(B), we will have;

p(A∪B) = p(A)+p(B) - p(A∩B)

1225 = 15+p(B)-7100

p(B) = 1225-15+7100

p(B) = 8310

Hence the missing probability p(B) is 8310.

6 0
2 years ago
Adam, imran and shakeel we're playing a card game. Adam scored × points Imran scored 3 points fewer than Adam Shakeel scored twi
Alex_Xolod [135]

Answer:

Step-by-step explanation:

During the card game, the number of points that Adam scored is x. Imran scored 3 points fewer than Adam. It means that the number of points that Imran scored is

(x - 3) points

I)Shakeel scored twice as many points as imran. It means that the expression for the number of points that Shakeel scored is

2(x - 3) points

Ii) Together they scored 39 points. Therefore, the equation which may be used to find the value of × would be

x + x - 3 + 2(x - 3) = 39

x + x - 3 + 2x - 6 = 39

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3 0
2 years ago
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Aleksandr-060686 [28]

Answer:

<h2>5,936.76 feet/day</h2>

Step-by-step explanation:

Formula to use to get the speed is expressed as speed = Distance/Time

Given parameters

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Time = 7.5weeks

Since we are to express the answer in feet per day, we will convert the distance to feet and time to days.

For the distance:

Given the conversion

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95km = (95*3280.84)feet

95km = 311,679.8 feet

For the time:

If 1 week = 7 days

7.5weeks = (7.5 * 7)

7.5weeks = 52.5 days

Speed In ft/day =  311,679.8 feet/ 52.5 days

Speed in ft/day = 5,936.76 feet/day

<em>Hence the speed in feet per day is  5,936.76 feet/day</em>

3 0
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Answer:

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Step-by-step explanation:

3.7+1.88=5.58


3 0
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Answer:

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The midpoint of QR is (2, 2).

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6 0
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