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disa [49]
3 years ago
5

3( 2x + 6) = -6 7th Grade Linear Equations

Mathematics
1 answer:
Tanya [424]3 years ago
4 0

Answer:

X= -4

Step-by-step explanation:

6x + 18 = -6

6x= -24

x= -4

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the number 2 in the expression 5+2x is called the coefficient of x how does changing the coefficient to 6 change the meaning of
anzhelika [568]

Answer:

11

Step-by-step explanation:

5plus 2x when x is something 2x is equaling to 6 where as the value of x would be 3...

8 0
3 years ago
The cost of membership at local country club is $125 per family member per month. Each family also has to pay $75 in service fee
katen-ka-za [31]
To write the equation you start with the 125 because it is monthly and it doesn't say how often you pay the 75 dollars so the equation would be c(f)=125x+75
6 0
3 years ago
Read 2 more answers
Roster Method.........
Natalija [7]

Answer:

The roster method is defined as a way to show the elements of a set by listing the elements inside of brackets. An example of the roster method is to write the set of numbers from 1 to 10 as {1,2,3,4,5,6,7,8,9 and 10}. An example of the roster method is to write the seasons as {summer, fall, winter and spring}.Step-by-step explanation:

8 0
3 years ago
A treatment is administered to a sample of n = 9 individuals selected from a population with a mean of µ = 80 and a standard dev
stepan [7]

Answer:

a) M =82

Step-by-step explanation:

Let´s study this as a Normal distribution.

As we know in a normal distribution the z score is = (X-μ)/(sd/sqrt(n))

where

X = mean for the taken sample = What we want to know in this problem

μ = Total population mean =80

sd= standard deviation= 12

n = sample size=9

So in this case z=( X-80)/(12/sqr(9))= (X-80)/4

also we know that the effect size taken by the machine is 0.5, which is the same as the z-score

so...

0.5 = (X-80)/4 => 0.5*4 = X-80

2+80 = X

X = 82

4 0
3 years ago
Help me, I will appreciate it
AveGali [126]
They are corresponding angles - they are equal
X+95 =4x-10
Add 10 to both sides
X+105 =4x
Subtract x from both sides
105=3x
X=35

35+95= 130
7 0
3 years ago
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