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iogann1982 [59]
3 years ago
7

Help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
MatroZZZ [7]3 years ago
6 0

9514 1404 393

Answer:

  second step is wrong; x = 5

Step-by-step explanation:

The correct solution is ...

  3(x -3) +9 = 15

  3x -9 +9 = 15 . . . . . . . not 3x -3

  3x = 15

  x = 5

_____

Jeremy did what a lot of students do -- failed to apply the outside factor to <em>all</em> of the terms in parentheses.

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Can anyone solve 84=4(1 - 4g) step by step?
lyudmila [28]

Answer:

g= -5

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    84-(4*(1-4*g))=0

 84 -  4 • (1 - 4g)  = 0

3.1     Pull out like factors :

  16g + 80  =   16 • (g + 5)

16 • (g + 5)  = 0

4.1      Solve :    16   =  0

This equation has no solution.

A a non-zero constant never equals zero.

4.2      Solve  :    g+5 = 0  

Subtract  5  from both sides of the equation :  

                     g = -5

I hope it helps you and if you want you can give me a brainly crown only if you want

7 0
3 years ago
Read 2 more answers
I need help please.
enot [183]

Answer:

The answer is D. 2

Step-by-step explanation:

exponential form

exponents equal

move constant to the right

subtract the number

divide both sides by 2

6 0
4 years ago
What is the 10th of a quarter of 1600
mihalych1998 [28]

Answer:

40

Step-by-step explanation:

A quarter of 1600 is 400. A tenth of that is 40.

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4 0
3 years ago
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Plz help me in math I am confused​
oee [108]

Answer:

a)1/3

b)2/3

c)3/4

d)1/5

e)2/6

f)2/8

g)4/6

h)6/9

✌☺✌

are the answer

3 0
3 years ago
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The numbers of blue, red, green and black pencils are proportional to the numbers 2, 3, 5, and 7, respectively. If we add the nu
Vitek1552 [10]

Answer:

  20 green pencils

Step-by-step explanation:

The difference between black and green "ratio units" is 7 -5 = 2. The difference between red and blue ratio units is 3 -2 = 1. The sum of those differences is 2 +1 = 3 ratio units, which represent 12 pencils. Then each ratio unit represents 12/3 = 4 pencils.

The 5 ratio units of green pencils represent 5·4 pencils = 20 green pencils.

_____

If you need an equation, you can use k as the constant of proportionality. Then the sum of differences described is ...

  (7k -5k) + (3k -2k) = 12

  3k = 12 . . . . simplify

  k = 4 . . . . . . divide by 3

  5k = 5·4 = 20 . . . . . number of green pencils

6 0
3 years ago
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