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Yuki888 [10]
3 years ago
11

Solve the equation 5(a – 7) + 11 = 2a – 3(a + 4) for a

Mathematics
2 answers:
Lady bird [3.3K]3 years ago
6 0
The answer is a equals 6.
Monica [59]3 years ago
3 0

5(a – 7) + 11 = 2a – 3(a + 4)

5a - 35 + 11 = 2a - 3a - 12

5a - 24 = -a - 12

add a to both sides

5a - 24 + a = -a -12 + a

simplify

6a - 24 = -12

add 24 to both sides

6a - 24 + 24 = -12 + 24

simplify

6a = 12

divide both sides by 6

6a/6 = 12/6

simplify

a = 2

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Five less than the product of a number and 3 is 14
lakkis [162]
Let the number be x

3x - 5 = 14
3x = 19
X = 6 1/3 or 6.333333...
4 0
3 years ago
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The box and whisker plots below show two classes' semester grades. Write a paragraph comparing the two sets of
oksano4ka [1.4K]

The paragraph to show the comparision between two classes semester grades on the basis of the terms

  • extremes
  • quartiles
  • medians
  • ranges

is given below:

<h3>What is Box and Whisker plots?</h3>

A box and whisker plot is defined as a graphical method of displaying variation in a set of data.

From the first figure, write all the values where dark point is drawn

53, 62, 80, 86, 89  

  • The lower extreme is the smallest value, which is 53.

        The upper extreme is the highest value, which is 89.

  • The median will be the middle of data , which is 80

  • The upper quartile is the median of the upper region and the lower quartile is the median of the lower region.

        The upper quartile is 86 and the lower quartile is 62.

  • Range of the data be,

       = Highest - Lowest

       =89-53

       =36

From the second figure, write all the values where dark point is drawn

56, 62, 74, 89, 96

  • The lower extreme is the smallest value, which is 56.

        The upper extreme is the highest value, which is 96.

  • The median will be the middle of data , which is 74.

  • The upper quartile is the median of the upper region and the lower quartile is the median of the lower region.

       The upper quartile is 89 and the lower quartile is 62.

  • Range of the data be,

       = Highest - Lowest

       =96-62

       =34

From the above discussion,  

  • The First class have less upper extreme value than the second class.
  • The First class have less lower extreme value than the second class.
  • The First class have greater median than the second class.
  • The First class have less upper quartile than the second class.
  • The First and second class have equal lower quartile.
  • The First class have greater range than the second class.

The comparision of the two classes on the basis of extremes, quartile, median, range is concluded above.

learn more about box and whisper plot here:

brainly.com/question/11859288

#SPJ1

6 0
2 years ago
How do you solve 90% of 20?
Marizza181 [45]
All you would do is multiply .9 by 20
.9*20=18

90% of 20 is 18
3 0
3 years ago
Area= 60 cm width 5cm what is the length and width
Anna [14]

Answer:

length = 12 cm | width = 5 cm

Step-by-step explanation:

You already know the width is 5 cm. So now just divide 5 from 60 to get the length of 12 cm.

3 0
3 years ago
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PLEASE HELP WITH MARK BRAINLIEST!<br> What is the value of g?
Sati [7]

Answer:

35

Step-by-step explanation:

this is a right triangle g+55 is a right triangle as shown by the red square in the corner.

90-55=35

so g=35

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