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Gennadij [26K]
3 years ago
6

Where is the mistake in the following work? *

Mathematics
1 answer:
stealth61 [152]3 years ago
8 0

Step-by-step explanation:

  • step 2
  • - 9 =  - 3x + 5 + 13 \\   - 9 = 2x + 13 \\  - 2x = 4 \\ -  2x \div -  2 = 4 \div -  2 \\ x =  - 2
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Students were asked how many books they were carrying in their backpacks. The data is shown in the frequency table. What is the
maxonik [38]

Answer:

Some students were asked how many books they were carrying in their backpacks. The data is given in this frequency table. What is the mean number of pens carried by these students in their backpacks?

Pens      Frequency 

0                 4

1                 5

2                 8

3                 4

4                 3

5                 1

A.2

B.3.5

C.4

D.5.5

3 0
2 years ago
Which scalelfactors are contractions?<br> -1<br> 3/4<br> -0.5<br> 7
yanalaym [24]

Answer:

- 1

<h2>Not sure!! I don't know this asnwer is wrong or right.</h2>
5 0
2 years ago
Find the surface area of the triangular prism shown below .
Wewaii [24]

Answer:

the surface area should be 544 (whatever the unit is)

Step-by-step explanation:

You start by taking the rectangles on the side and finding their area.

1. (10×14)×2 ←Because there are two rectanglular sides.

2. find the area of the triangles on the side. 1/2bh = area of triangle.

(.5×8×6)×4 ← in order to find the area for all of the triangles.

3.  lastly take the base of the prism and find the area then add the previously found values together.

(12×14)+(.5×8×6)×4+ (10×14)×2 = 544

7 0
3 years ago
Its
damaskus [11]

Answer:

P(Green\ and\ Green) = \frac{25}{144}

Step-by-step explanation:

Given

Green=5

Blue = 7

Required

P(Green\ and\ Green)

This is calculated as:

P(Green\ and\ Green) = P(Green) * P(Green)

Since, it is a probability with replacement, we have:

P(Green\ and\ Green) = \frac{Green}{Total} * \frac{Green}{Total}

So, we have:

P(Green\ and\ Green) = \frac{5}{12} * \frac{5}{12}

P(Green\ and\ Green) = \frac{25}{144}

5 0
3 years ago
Olympia ate lunch at a restaurant. The amount of her check was $6. 89. She left $8. 00 on the table, which included the amount s
Evgesh-ka [11]

Answer:

a.6.89 + t = 8.00

Step-by-step explanation: i took the quiz

6 0
1 year ago
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