18. Prime numbers are closed under subtraction.
True or false

Step-by-step explanation:

the answer is in the image above

Answer

5.56

Step-by-step explanation

The price of one ice cream cone is $2.38

The given parameters;

The actual amount Mrs Magee purchased the 3 ice cream cones;

Total amount paid = $10 - $2.86 = $7.14

The price of one ice cream cone is calculated as follows;

[tex]Price \ of \ each = \frac{Total \ cost}{total \ number } \\\\Price \ of \ each = \frac{\$7.14}{3} = \$2.38[/tex]

Thus, the price of one ice cream cone is $2.38

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Answer:

3+4×(6-2)=28

Step-by-step explanation:

7×4=28

Answer:

3+4×6-2=28

3+4×(6-2)=28

7×4=28. answer.

Answer:

(7/8, 0)

Step-by-step explanation:

The formula to find the midpoint is (x1+x2/2, y1+y2/2).

(5.5-3.75/2, 2.25-2.25/2)

(1.75/2, 0/2)

(0.875, 0)

(7/8, 0)

Best of Luck!

Answer:

-64.

Step-by-step explanation:

f(x)=-x^2-4x-19            Replacing x by -9:-

f(-9)= -(-9)^2-4(-9)-19

= -81 + 36 - 19

= 36 - 100

= -64.

Answer:

-64

Step-by-step explanation:

f(x)=-x^2-4x-19

Let x = -9

f(-9) = - (-9)^2 -4(-9) -19

     = -81 +36 -19

     =-64

Answer: The greatest number of students for whom 30 apples, 45 pears and 60 oranges can be distributed equally is 15.

Step-by-step explanation:

taking HCF

so

HCF of 30,45,60

30 = 2*5*3

45 = 3*3*5

60=3*2*2*5

HCF = 3*5 = 15

so

1 student will get = 30/15 = 2 apples

1 student will get = 45/15 = 3 pears

1 student will get = 60/15 = 4 oranges

Answer:

devide it by 2 three times

Step-by-step explanation:

6288/2=3144

3144/2=1572

1572/2=786

i think that's the easiest way to do it

Answer:

x = -3

Equation: 2x + 2 = -4

x = 2

Equation: 3x - 3 = 3

Answer:

Ok

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

22/7 X 14 squared

--------------------------------  =308

           2

406-308= 98cm ^2

Answer:

Step-by-step explanation:

Given that x = 3 and y = 2 we can figure these out

3x = 3x3 = 9

5y = 5 x 2 = 10

9+10=19

X times y - 1

3x2-1=5

X*+y* =

3x3+2x2 = 13

2x3*-2 =

2x3x3 - 2 = 16

-5x3+9

= -6

2x2-3+5+3*-3x2 =

9

Answer:

D

Step-by-step explanation:

f(x) = x^3 + 2x^2 + 4 for x<0

2^x - 4 for x >0

Answer:

Step-by-step explanation:

if it is on a numbering . then write the inverse of the number given eg.1 = -1,2 = -2 etc.

[tex]\boxed{\boxed{\sf Area\:of\:the\:figure=10x^4-50x^3+5x^2+246x-196}}[/tex]

Refer to the attachment for calculations.

Answer:

its hard i don't know

Step-by-step explanation:

very bad

very very bad

very much bad

bad

Answer:

6 x 8

48 x 1

24 x 2

12 x 4

16 x 3

Are the 5 expressions equivalent to 12 x 4

Answer:

7 and 34

Step-by-step explanation:

let x and y be the 2 numbers with x > y

The 2 equations to solve are

x = 4y + 6 → (1)

x + y = 41 → (2)

Substitute x = 4y + 6 into (2)

4y + 6 + y = 41 , that is

5y + 6 = 41 ( subtract 6 from both sides )

5y = 35 ( divide both sides by 5 )

y = 7

Substitute y = 7 into (1)

x = 4(7) + 6 = 28 + 6 = 34

The 2 numbers are 7 and 34

Answer:

Step-by-step explanation:

To get equivalent expressions, if you are adding or subtracting, the number and letter you get on the left must be the same as the one on the right.

In B. The answer is incorrect because 4t is minus on the left. The letters are different, so 4t must remain minus. Not B

In C the numbers will combine when you add. If they are the same,, they remain the same. They do not become powers the answer for C is 10s. So C is not correct.

In D you are indicating that 6 is multiplied by 4s.  You can only multiply 6 and 4. They don't add. Not D

A is correct.

Answer:

3x+8

Step-by-step explanation:

2x+bc=5x+8

bc=5x-2x+8

bc=3x+8

Answer:

19/30

Step-by-step explanation:

Total cakes made by Tyron = 60

Cakes given to Ana = 20% of 60

                                 [tex]=\dfrac{20}{100}*60\\\\= 2*6\\\\= 12 \ cakes[/tex]

Number of cakes given to Dora= [tex]\dfrac{1}{6}*60=10[/tex]

Remaining cakes = 60 - ( 12 +10)

                              = 60 - 22

                              = 38 cakes

Fraction of left cakes = [tex]\dfrac{38}{60}=\dfrac{19}{30}[/tex]

Answer:

2

Step-by-step explanation:

3x + 5x  + 8x = 32

taking x common,

(3 + 5 + 8)x = 32

16x = 32

x = 32 / 16

x = 2

Answer: See below

Explanation:

The ultimate method of solving algebra problems will be trying any operations to isolate x, which then gives the value of x.

Operations include combining like terms, dividing and multiplying terms, and etc.

I would be solving [3x + 5x + 8x = 32] as an example.

Solve:

Given

3x + 5x + 8x = 32

Combine like terms through addition

8x + 8x = 32

16x = 32

Divide 16 on both sides to isolate x

16x / 16 = 32 / 16

[tex]\boxed {x=2}[/tex]

Hope this helps!! :)

Please let me know if you have any questions

Answer:

26

Step-by-step explanation:

Hi ;-)

200 = 16(6t - 3)

16 · 6t - 16 · 3 = 200

96t - 48 = 200  / + 48

96t = 248  / : 96

t = ²⁴⁸/₉₆ = ³¹/₁₂ = 2 ⁷/₁₂

The solution of the linear equation 200 = 16 (6t - 3) will be 2.58.

The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.

A relationship between two or more parameters that, when shown on a graph, produces a linear model. The degree of the variable will be one.

The linear equation is given below.

200 = 16 (6t - 3)

Simplify the equation, then the value of the variable t will be

200 = 16 (6t - 3)

12.5 = 6t - 3

6t = 15.5

t = 2.58

The solution of the linear equation 200 = 16 (6t - 3) will be 2.58.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

#SPJ2

Answer:

the last one

Step-by-step explanation:

Answer:

I can't really see anything in here could you make the photo up close. Please thanks, I really want to help you :)))

Step-by-step explanation:

Answer:76000 divided by 816 equals

93 with a remainder of 112

Step-by-step explanation:    0 0 0 9 3

8 1 6 7 6 0 0 0

   − 0        

     7 6      

   −   0      

     7 6 0    

   −     0    

     7 6 0 0  

   − 7 3 4 4  

       2 5 6 0

     − 2 4 4 8

         1 1 2

Step-by-step explanation:

If a number is rational, we can represent it as a fraction.

[tex] \frac{a}{b} [/tex]

Where a and b are intergers.

First, we know that

[tex] \sqrt{49} = 7[/tex]

We can represent 7 as

[tex] \frac{7}{1} ..... \frac{14}{2} .... \frac{21}{3} ..... \frac{n}{y} = 7[/tex]

Where n and y are two numbers that when divided equal 7.

So

[tex] \sqrt{49} [/tex]

is a rational number