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avanturin [10]
3 years ago
14

M=−(4+m)+2 what is m

Mathematics
1 answer:
Alchen [17]3 years ago
5 0

Answer: m=-1

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

                    m-(-(4+m)+2)=0

1.1     Pull out like factors :

  2m + 2  =   2 • (m + 1)

2.1      Solve :    2   =  0

This equation has no solution.

A a non-zero constant never equals zero.

2.2      Solve  :    m+1 = 0  

Subtract  1  from both sides of the equation :  

                     m = -1

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What is the range of possible sizes for side x?
oksian1 [2.3K]

Answer: 1.48

Step-by-step explanation:

6 0
3 years ago
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N+9/4n+36 simplify this
scoundrel [369]
The answer is 1/4.
(n+9)/4(n+9)=1/4
4 0
3 years ago
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One member of the debate team is going to be chosen president. each member is equally likely to be chosen. the probability that
inessss [21]
Let
x-------> <span>the probability that a boy is chosen
B------> </span>number of boys in the debate team
G------> number of girls in the debate team<span>

we know that
B+G=20-----> G=20-B-----> equation 1
</span>probability that a boy is chosen=number of boys in the debate team/total of people
so
x=B/20-------> equation 2

t<span>he probability that a girl is chosen is 2/3 the probability that a boy is chosen
</span>probability that a girl is chosen=(2/3)*x
probability that a girl is chosen=G/20
(2/3)*x=G/20-----> equation 3
substitute equation 1 in equation 3
(2/3)*x=[20-B]/20----> equation 4

resolve the equations system
x=B/20
(2/3)*x=[20-B]/20

using a graph tool
see the attached figure
the solution is
x=0.6
B=12
G=20-12-----> G=8

number of boys in the debate team is 12
number of girls in the debate team is 8
the probability that a boy is chosen is 0.6 ----> 60%
the probability that a girl is chosen is 0.6*(2/3)----> 0.4---> 40%

the answer is
number of girls in the debate team is 8

7 0
3 years ago
HELP ME PLEASE IT IS A QUICK PROBLEM AND I HAVE 4 MINUTES LEFT!!
GaryK [48]

Answer:

Uuh whats the problem

Step-by-step explanation:

Mark as brainliest

7 0
2 years ago
The dual bar chart shows the hair colour of boys and girls in a year group.
Natasha2012 [34]

The fraction of the red haired students are boys will be 2 / 5.

<h3>What is a fraction number?</h3>

A fraction number is a number that represents the part of the whole, where the whole can be any number. It is in the form of numerator and denominator.

The dual bar chart shows the hair colour of boys and girls in a year group.

The total number of the boys and girl will be

Total = 6 + 9

Total = 15

Then the fraction of the red haired students are boys will be

⇒ 6 / 15

⇒ 2 / 5

More about the fraction number link is given below.

brainly.com/question/78672

#SPJ1

4 0
2 years ago
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