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slega [8]
3 years ago
13

What is the mean of the following data values ? 87,29,21,52,21

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
4 0

Answer: 42

<u>Order the Numbers</u>

Before: 87,29,21,52,21

After: 21,21,29,52,87

<u>Add</u>

21+21+29+52+87=210

<u>Divide</u>

210÷5=45

Mean = 45

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Camden is taking a multiple choice test with a total of 50 points available. Each question is worth exactly 5 points. What would
alina1380 [7]

Answer:

<h2>1. 40 points</h2><h2>2. 50-x points </h2>

Step-by-step explanation:

1. Given that the total number of points is  50

2. Each question is worth 5 points

We can now calculate the number of questions by dividing the total points by the worth of each question

the number of question is  = 50/5= 10

hence there are 10 questions available

if he misses 2  questions, which will amount to 10 points his score will be

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Hence if he got x questions wrong his score will be

50-x points

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3 years ago
Write three different sentences that could describe the relationship between the quantities $27, $81
Olenka [21]
1) 27+x=81
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4 years ago
Diego can type 140 words in 4 minutes. how long will it take him to type 385 words
Citrus2011 [14]

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8 0
3 years ago
I need to simplify this question to simplest form. 49/100
NemiM [27]

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Step-by-step explanation:


4 0
3 years ago
To find the distance AB across a river, a surveyor laid off a distance BC=361 m on one side of the river. It is found that B=111
zhannawk [14.2K]

Answer:

91.87m

Step-by-step explanation:

We are given that

BC=361 m

Angle B=111^{\circ}20'=111+\frac{20}{60}=111.33^{\circ}

1 degree= 60 minute

Angle C=12^{\circ} 15'=12+\frac{15}{60}=12.25^{\circ}

We have to find the value of AB.

Sum of angles of triangle=180 degrees

\angle A+\angle B+\angle C=180

\angle A=180-(\angle C+\angle B)=180-(111.33+12.25)=56.42^{\circ}

By using law of sine

\frac{AB}{sin C}=\frac{BC}{sin A}

AB=\frac{BCsin C}{sin A}=\frac{361 sin 12.25^{\circ}}{sin 56.42^{\circ}}

AB=91.87 m

7 0
4 years ago
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