We've seen that natural numbers are closed under addition. Determine the closure of natural numbers under the other three operations, and give examples to support your answers.

Let's solve your equation step-by-step.

4x+2x−5=7x−1

Step 1: Simplify both sides of the equation.

4x+2x−5=7x−1

4x+2x+−5=7x+−1

(4x+2x)+(−5)=7x−1(Combine Like Terms)

6x+−5=7x−1

6x−5=7x−1

Step 2: Subtract 7x from both sides.

6x−5−7x=7x−1−7x

−x−5=−1

Step 3: Add 5 to both sides.

−x−5+5=−1+5

−x=4

Step 4: Divide both sides by -1.

−x

−1

=

4

−1

x=−4

Answer:

x=−4

i hope this helps you

Answer:

She decides to use the same type of paper for each airplane

Step-by-step explanation:

Answer:

b just did it

Step-by-step explanation:

Answer:

7/8

Step-by-step explanation:

2/4+3/8= 4/8+3/8=7/8

Answer:

3×2 + 3×-b

Step-by-step explanation:

[tex]3(2-b)\\= 3\times 2 + 3\times (-b)\\\\= 6 -3b[/tex]

Answer: the answer to the equation would be x=2

Step-by-step explanation:

You would use the subtraction property of equality to get ride of the five. Then you would subtract 11 by 5 and get 6. After that you would get the x by itself and divide it by 3. Them you will also divide 6 by 3 And be left with 2.

Answer:

Step-by-step explanation:

[tex]\sqrt{15}\\=3.87298\dots \\\\= 4[/tex]

Answer:

x =-17

Step-by-step explanation:

[tex]-9+x=-26\\\\\mathrm{Add\:}9\mathrm{\:to\:both\:sides}\\-9+x+9=-26+9\\\\Simplify\\x=-17[/tex]

Answer:

Explained below.

Step-by-step explanation:

Heterogeneous denotes to a form with different components or features, give the impression as uneven or varied.  

A heterogeneous population or sample is the one where each and every individual has a diverse value for the distinctive characteristic one is interested in.

To select a representative sample from the random heterogeneous material one should divide the material into segments and then use random number, either by the random number table or by the random number generator, to select  random segments of the material.

Answer:

the answer is 28

Answer:

m=

[tex] \frac{4}{5} [/tex]

Step-by-step explanation:

Slope of a line is the co efficient of x in the given line.

[tex]y = \frac{4}{5} x - 3 \\ y = mx + b[/tex]

Answer:

43,680

Step-by-step explanation:

4 in below let him go

5 and above bump him up

8>5 so we bump him up

so 7-> 8

Answer:

43,680

Step-by-step explanation

Rounding numbers to the nearest 10 means finding which 10 they are nearest to. For example, 78 rounded to the nearest 10 is 80.

Answer:

982.27 = 1 month

12 months in one year

1 month x 12 is 12 months

982.27 x 12 = 11787.24

11787.24 x 2 = 23574.48

So, it is $23574.48

Try your best!

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We can define the average rate of change of a function f(x) in an interval [a, b] as:

[tex]r = \frac{f(b) - f(a)}{b - a}[/tex]

Particularly, if we want to find an approximation of the rate of change for a particular value x', we can choose:

a < x' < b

Such that a and b are really close to x'.

Then if we want to find the instantaneous rate of change of g at x = 0, we need to find values of a and b really close to zero.

Looking at the table, we can choose:

a = -0.001

b = 0.001

(are the two closer ones to zero)

Then the rate of change can be written as:

[tex]f(x) = \frac{g(0.001) - g(-0.001)}{0.001 - (-0.001)} = \frac{2.001 - 1.999}{0.002} = 1[/tex]

From that, we can conclude that a good approximation of the instantaneous rate of change is 1.

If you want to learn more, you can read:

https://brainly.com/question/18904995

Answer:

12x^3 +20xy

Step-by-step explanation:

Hope this Helped!!!!!!!!!!!!

Answer:

Technically it is 12x^3 + 20xy but the answer choice is 12 and 20.

Step-by-step explanation:

For the work, you need to distribute 4x to each term in the ( ).

Answer:

34+16=50% of the pizza so on Sundays night he ate the other 50%

:)

Answer:

Step-by-step explanation:

In Istanbul, the number of resorts per person is ...

  160/(15.154·10^6) = 0.000011 . . . . rounded to 6 places

  = 1.1E-5 . . . . in scientific notation

Answer:

about $64

Step-by-step explanation:

4 x $15.99 = $63.96

round $63.96 to get $64

Answer:

B. x+(y+z)

Step-by-step explanation:

Minus(minus) gives plus(+)

Answer:

1. 90

2. AEC

3. angle addition postulate

:)

Answer:

answers

Step-by-step explanation:

Step-by-step explanation:

7n-5n=6

2n=6

n=6/2

n=3

Answer:

Class width = 9

Class limits = 20 - 28; 20 - 28; 29 - 37; 38 - 46; 47 - 55; 56 - 64; 65 - 73; 74 - 82.

Step-by-step explanation:

We are given;

Highest value = 82

Lowest value = 20

Frequency = 7

Formula for class width is;

Class width = (Highest Value - Lowest Value)/number of classes

Class width = (82 - 20)/7

Class width = 8.8 ≈ 9

Now,since class width is 9, limits between 20 and 82 would be done at intervals of 9.

Thus;

Class limits = 20 - 28; 20 - 28; 29 - 37; 38 - 46; 47 - 55; 56 - 64; 65 - 73; 74 - 82.

Answer:

2/3 book/hour

Step-by-step explanation:

1/2 multiplied by 4/3= 2/3

Answer:

do 15x 40 and the 15x10

Step-by-step explanation:

Answer: 12

Step-by-step explanation:

Answer : p(x) equals 1 :)

Answer: 26/3

Step-by-step explanation: When dividing by a fraction, we can change

the division sign to multiplication and flip the second fraction.

So 13/2 ÷ 3/4 means the same thing as 13/2 · 4/3.

So when dividing by a fraction, we can just multiply

by the reciprocal of that fraction or that fraction flipped.

Next we cross-cancel.

4 and 2 reduce to 2 and 1.

Multiplying across the numerator and denominators we have 26/3.