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castortr0y [4]
3 years ago
10

How do i even start to solve this problem?

Mathematics
2 answers:
Sphinxa [80]3 years ago
8 0
You have to find a and c and then add them all up
nadezda [96]3 years ago
6 0
First you have to find a and c then add them all up
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3[–x + (2 x + 1)] = x – 1
photoshop1234 [79]

Answer:

<h3>x = -2</h3>

Step-by-step explanation:

3[-x + (2 x + 1)] = x -1\\\\\mathrm{Expand\:}3\left(-x+\left(2x+1\right)\right):\quad 3x+3\\3x+3=x-1\\

Collect like terms

3x -x =-1-3

Add similar elements

2x = -4\\\\\mathrm{Divide\:both\:sides\:by\:}2\\\frac{2x}{2}=\frac{-4}{2}\\\\Simplify\\\\x = -2

3 0
3 years ago
If 4 Maths books are selected from 6 different Maths different English books, how many ways can the seven om Maths books and 3 E
alexgriva [62]

Answer:

Please see the answer below

Step-by-step explanation:

a. Since there’s no restrictions .Therefore , the number of ways = 7!*150 = 756000

b. The number of ways such that the 4 math books remain together

The pattern is as follows:  MMMMEEE, EMMMMEE, EEMMMME, and EEEMMMM

Where M = Math’s Book and E= English Book.  

Number of ways = 4!*8!*4*150= 86400 ways.

c. The number of ways such that  math book is at the beginning of the shelf

The number of ways = 6!*4*150 = 432000

d. The number of ways such that  math and English books alternate

The number of ways = 150*4!*3! =2160 ways

e.  The number of ways such that math is at the beginning and an English book is in the middle of the shelf. The number of ways = 4*3*5!*150 =216000 ways.

6 0
3 years ago
some numbers added to -11 is 37.divide this number by -12.then multiply by -8.what is the final number?
LUCKY_DIMON [66]
Since some number added to -11 is 37, we must do 37- (-11),  which is 48. Then we check our work and find that 48+-11 is indeed 37. Now we divide 48 by -12, which is -4, multiply by -8 and get a final answer of 32.
6 0
3 years ago
1. Intervention may be called A.addicts, mentally ill people,
Yuki888 [10]

Answer: 1. mentally ill people

2. c

3.answer choices ?


Step-by-step explanation:


7 0
3 years ago
Read 2 more answers
Solve the system of equations with substitution or elimination method. please help 2x+y=4 and 6x+7y=12
GuDViN [60]

Answer:

x=2-y/2

y=12/7-6x/7

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
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