the prices of magazines and books at the school book fair are shown in the table. determine if each statement is true or false

Answer:

2x-7=13 X=10

3x+4=25 X=7

2/3x=8 X=12

3/2x=6 X=4

Step-by-step explanation:

Answer:

a. x = 12

b. x = 4

Step-by-step explanation:

a.  [tex]\frac{2x}{3}=8[/tex]

Multiply both sides by 3;

[tex]\frac{2x}{3} *3=8*3\\\\2x=24[/tex]

Divide both sides by 2;

x = 12

b.  [tex]\frac{3x}{2}=6[/tex]

Multiply both sides by 2;

[tex]\frac{3x}{2}*2=6*2\\\\3x=12[/tex]

Divide both sides by 3;

x = 4

Answer:

x=1,y=3

correct answer is (1,3)

Step-by-step explanation:

We can quickly eliminate y by subtracting one equation from the other

(-2x+y=1)-(-4x+y=-1)

2x=2

x=1

plug x=1 into equation 1

-2(1)+y=1

y=1+2=3

Answer:

A polygon is a very big catagory. For example, a triangle has three sides, while a quadrilateral has four sides.

A triangle would be, A=h*w/2 (h being hight, and w being width)

A quadrilateral would be, A=h*w

Answer:

Step-by-step explanation:

2x - 5y = 6

5y = 2x - 6

y = 2/5x - 6/5

y-intercept is -6/5

x-intercept is when you say that y = 0

and so 6/5 = 2/5x

x = 6/2 = 3

Answer:

MN║SU

OM║TU

ST = 2ON

Step-by-step explanation:

8 cups would be 4 pints for your problem

Answer:

n +17 = 26

Step-by-step explanation:

Let the number be 'n'

17 more than 'n' = n + 17

n + 17 = 26

Answer:

n +17 = 26

Step-by-step explanation:

I got a 100 on the test ed2021

Answer:

The distance between the two stars in miles is 5.292 * 10^10 miles

Step-by-step explanation:

Here, we want to make a conversion from light year to miles

To make this conversion, we simply are going to multiply the light year by the miles

Mathematically, we have this as;

9 * 10^-3 * 5.88 * 10^12

= 52.92 * 10^9

= 5.292 * 10^10 miles

Responder:

1) x² + y²-8x + 10y + 16 = 0

2) x² + y² + x + 18y + 33 = 0

Explicación paso a paso:

A partir de la pregunta, debemos expresar la ecuación en la forma estándar de un círculo expresado como;

x² + y² + 2gx + 2fy + c = 0 donde;

(-g, -f) es el centro.

1) Para la ecuación (x-4) ² + (y + 5) ² = 25

Expande el paréntesis;

(x-4) ² + (y + 5) ² = 25

x²-8x + 16 + y² + 10x + 25 = 25

x²-8x + 16 + y² + 10y + 25-25 = 0

Recopile términos similares;

x² + y²-8x + 10y + 16 + 0 = 0

x² + y²-8x + 10y + 16 = 0

Por lo tanto, la ecuación requerida es x² + y²-8x + 10y + 16 = 0

2) Para la expresión (x + 1) ² + (y + 9) ² = 49

x² + x + 1 + y² + 18y + 81 = 49

x² + x + 1 + y² + 18y + 81-49 = 0

Recopile términos similares;

x² + y² + x + 18y + 82-49 = 0

x² + y² + x + 18y + 33 = 0

Por tanto, la ecuación requerida es x² + y² + x + 18y + 33 = 0

Answer:

So if I multiply those two expressions together, I will get eleven copies

Answer:

the answer is 3

Step-by-step explanation:

6x -3x = 13-4

3x = 9

x =3

Answer:

Subtract 4 from both sides of the equation

6+4=3+13

6+4−4=3+13−4

Simplify

Subtract the numbers

6=3+9

Subtract 3 from both sides of the equation

6x=3+9

6−3=3+9−3

Simplify

Combine like terms

3=9

Divide both sides of the equation by the same term

3=9

3/3=9/3

Simplify

Cancel terms that are in both the numerator and denominator

Divide the numbers

=3

Solution

=3

Answer:

Step-by-step explanation:

a. It is a decay function as number of population is decreasing over time

b. f(n) = 33500*((100 - 2.5)/100)^n = 33500*(0.975)^n

c. In year 2025, n = (2025 - 1995)/10 = 3

f(3) = 33500*(0.975)^3 = 31100 rounded up

Answer:

3Ax-6x = 15

3x(A-2)=15

If A were 2, the left side of the equation would be 0 and it wouldn't equal 15 no matter what the value of x is. So A is 2

Answer:

x = 2, y = -1

Step-by-step explanation:

To solve this with elimination, we first multiply the first equation by -2.5

Our new equations are:

-5x - 7.5y = -2.5

5x – 4y = 14

After adding these two equations together, the x cancels out and we have:

-11.5y = 11.5

Divide both sides by -11.5

y = -1

Plugging this value into y in one of the equations we have:

2x + 3y = 1

2x + 3(-1) = 1

2x - 3 = 1

Add 3 to both sides

2x = 4

Divide both sides by 2

x = 2

Answer:

x= -14

Step-by-step explanation:

-x+3x-x=-8-6

x= -14

-x+8+3x=x-6

the first thing we need to do is move the x's to the left and the numbers to the right

when moving a number from one side to another it's sign is changed

-x+3x-x=-6-8

x=-14

Answer: 32

Step-by-step explanation:

The expression that is equivalent to 2^2 divided by 2/2^4 would be calculated as:

= 2^2 ÷ 2/2^4

= 4 ÷ 2/16

= 4 ÷ 1/8

= 4 × 8

= 32

The expression would be equal to 32 based on the above calculation

Answer:

2

Step-by-step explanation:

5 bottles = 10 dollars

divide by 5 to get 1 bottle

now divide 10 by 5 that will be 2

2$ for 1 bottle

Answer:

Baritone/Euphonium

Trumpet

Tuba

Trombone

Good luck!!

Answer:

Half is 2

Step-by-step explanation:

Answer:

X = 5a+5g

Step-by-step explanation:

Adding g on both sides gives:

X/5 = a+g

Now dividing 5 on both sides gives us the value of x which is:

X = 5(a+g)

Hence X=5(a+g) or X=5a+5g( multiplying by 5 gives us 5a and 5g)

Answer: a definition of an equation can be defined as a mathematical statement consisting of an equal symbol between two expressions that have the same value.

Step-by-step explanation:

Answer Update [PLATO]:

Answer choice updated to B, however the text and answer itself in the other persons submition (above) is still correct

as of 9:55am Daylight Central Timezone Apr.-10-2022

AndreanWarrior747

f(x) and g(x) are not closed under subtraction because when subtracted, the result will be a polynomial, the correct option is B.

According to Closure Property, when something is closed, the output will be same as the input.

The polynomials f(x) and g(x) can be seen in the image.

On subtracting the two polynomials, the output will be a polynomial and so it is closed under subtraction.

To know more about Closure Property

https://brainly.com/question/19340450

#SPJ5

100%=$4400

40% $=?

40 ×4400/100

$1760

Answer:

The answer is 2.375.

Step-by-step explanation:

17 / 8 = 2.125.

2 / 8 = 0.25.

2.125 + 0.25 = 2.375.

x=6 , y = 4

Step-by-step explanation:

( x-2,6)=(4,Y+2)

this means; (x-2) &( 4) stands for" x "axis.

and( 6 )& (y+2) stands for y axis.

So, we can say( x-2)=X1 & (4)=X2 , (6)=Y1 & (y+2)=Y2

then; to Solve The Equation we use The Formula: X1=X2 for "X" And Y1=Y2 for "Y".

Solution: for "X" ; X1=X2

x-2= 4

x=4+2

x=6

For "Y" ; Y1=Y2

6 = y+2

y=6-2

y=4

finally check ; ( (x-2),6) = (4,(y+2) )

(6-2),6 = (4,(4+2) )

( (4),6) = (4,(6) )

(4,6) = (4,6)

so, X1 =X2 ; 4 = 4

Y1 = Y2 ; 6 = 6

Answer:

Step-by-step explanation:

cot(theta) = 1 / tan(theta)

cot(theta) = 1 / -5

cot(theta) = - 0.2

Answer:

99,000

Step-by-step explanation:

since 3 times 10 to the power of 3 is 1000 and 10 to the power of 5 is 100000 the answer is 99,000

Answer: 97000 more

Step-by-step explanation:

10*10*10*10*10=100000  10⁵

10*10*10=1000*3=3000    10³

So 100000-3000= 97000 more

Hope this helped!

Answer:

C. 27

Step-by-step explanation:

((4x + 5) + 10)*10 = (21 + 9)*9 (two secants intersecting)

(4x + 5 + 10)*10 = (30)*9

(4x + 15)*10 = 270

40x + 150 = 270

40x = 270 - 150 (subtraction property of equality)

40x = 120

Divide both sides by 40

40x/40 = 120/40

x = 3

✔️QS = (4x + 5) + 10

Plug in the value of x

QS = 4(3) + 5 + 10

QS = 12 + 5 + 10

QS = 27