pls help ASAP

A jeweler wants to make a silver alloy to be used to make necklaces. How many ounces of a silver alloy that costs $5.50 per ounce should be mixed with one that costs $8.00 per ounce to make a new 20-ounce alloy that costs $7.00 per ounce?
$5.50 grade oz
$8.00 grade oz

Thank you :)

Answer:

Quotient = 3x² - 2x + 3

Remainder = 1

Step-by-step explanation:

We have to solve: [tex]\dfrac{3 x^{3} + 4 x^{2} - x + 7}{x + 2}[/tex]

We will use synthetic division to calculate this divisor

First, take the constant term of the divisor with the opposite sign and write it to the left. Write the coefficients of the dividend expression to the right Where there is no coefficient for a specific x term, use 0

Step 1: Write down the first coefficient asis

   |  x³      x²       x¹       x⁰
2  |  3       4        -1        7           ←    Coefficient row
   |
   ---------------------------------

       3                                           ← Result Row

Step 2: Multiply the entry in the left part of the table by the last entry in the result row and add he obtained result to the next coefficient of the dividend, and write down the sum.

    |  x³      x²       x¹       x⁰
-2  |  3       4        -1        7          
     |          -6                                         -6 = -2 x 3
   ---------------------------------

       3     -2                                          -2 = 4 + (-6)

Repeat step 2 until we have finished with all the entries. These are the snapshots of each computation. Current operands are in bold

   |  x³      x²       x¹       x⁰
-2 |  3       4        -1        7          
    |          -6        4                              
   ---------------------------------

       3     -2         3

   |  x³      x²       x¹       x⁰
-2 |  3       4        -1        7          
    |          -6        4      -6                        
   ---------------------------------

       3     -2         3       1

The last entry in the result table shows the remainder of the division

The resultant coefficients are 3, -2, 3, 1

Therefore the answer is
Quotient = 3x² - 2x + 3
Remainder = 1

By solving a simple linear equation, we will get that:

36° = m∠AOB

We can write a simple linear equation here, we know that:

m∠AOC = 108°

And we also know that:

m∠AOC = 3*m∠AOB

If we replace the first equation into the second one, then we will have the linear equation:

108° = 3*m∠AOB

And we want to solve this for m∠AOB, to do so, we just need to divid both sides by 3, we will get:

108°/3 = m∠AOB

36° = m∠AOB

We conclude that the measure of angle ∠AOB is 36°

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Answer:

3, 4, 5

6, 8, 10

5, 12, 13

Step-by-step explanation:

If you are given side lengths and must determine if it is a right angle, you will use the Pythagorean Theorem. Which states that the square length of the hypotenuse (longest side of a triangle) must equal to the sum of the square length of the two shortest.

Formula: a² + b² = c²

2, 4, 6

a² + b² = c²

(2)² + (4)² ≟ (6)²

4 + 16 ≟ 36

20 ≠ 36

3, 4, 5

a² + b² = c²

(3)² + (4)² ≟ (5)²

9 + 16 ≟ 25

25 = 25

6, 7, 9

a² + b² = c²

(6)² + (7)² ≟ (9)²

36 + 49 ≟ 81

85 ≠ 81

6, 8, 10

a² + b² = c²
(6)² + (8)² ≟ (10)²

36 + 64 ≟ 100

100 = 100

5, 12, 13

a² + b² = c²

(5)² + (12)² ≟ (13)²

25 + 144 ≟ 169

169 = 169

Answer:

105

Step-by-step explanation:

Work out the difference between the highest value and the lowest value in

the list:  -55, 45, -30, 25, -90

The lowest value will be the largest negative number in the list: -90

The highest value will be the largest positive number in the list: 45

the difference between -90 and 45:

-90 - 45 = 105

Answer:

the coordinate of point P is (14/5, -1)

Step-by-step explanation:

Answer:

1: x

A variable is a letter in an equation that represents an unknown value or a value that can change.

2: 2

A coefficient for a variable is the leading number in front of the variable. It tells you how many times the variable happens

3: 2x

A term is a multiplication or division statement separated by a +/- sign.

Hope that helps

Jacob will need 7 months to spend all the money.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Jacob had $180 in his savings account at the beginning of summer vacation. over the next 12 weeks, he mowed lawns in his neighborhood earning $145 and spending $55 each week. he deposited all of his weekly profits into his savings account each week. when summer vacation is over, he plans to spend $180 per month.

The number of months will be calculated as:-

Total money in the account = 180 + 12(145-55)

Total money in the account = $1260

Total months = 1260 / 180

Total months = 7 months

Therefore, Jacob will need 7 months to spend all the money.

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Answer:

Sarah=x

Lea=3x-4

Rachel=1/2x-3

Amanda=2x+1

Sum=46

x+3x-4+1/2x-3+2x+1=46

6.5x-6=46

6.5x=52

x=52/6.5x

x=8

input x in each sister's age:

Sarah= 8 years

Lea = 3(8)-4=20 years

Rachel = 1/2(8)-3=1 year

Amanda = 2(8)+1=17years

Step-by-step explanation:

Based on the given graph and line, the distance between the pair of points is 5

To find the distance between two points on a line or a pair of points, first find the coordinates of the points:

(-1, -2) and (-1, 3)

The distance then be found by applying the formula:

=√((x2 – x1)² + (y2 – y1)²)

Solving for the distance gives:

=√((-1 – (-1))² + (3 – (-2))²)

= 5

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Answer:

5 clusters

Step-by-step explanation:

This is because she went to the market with 50 pesos and buys one bag of papayas for 20 pesos.

That means that her the remaining money she would have would be 50-20=30.

she would have 30 pesos.

Each banana cost 6 pesos so, she would buy 5 clusters because 30÷6=5

the answer to 130x1000 is

130,000

The domain and the range for the relations are given as follows:

For items 13 and 16, the functions are continuous, hence it is over the real numbers, and both the domain and range are all real values.

For items 14 and 15, the functions are discrete, hence it is over the integer numbers, and the domain is composed by the values assumed by x and the range is composed by the values assumed by y.

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The slope and equation of line with the coordinates (5,6) and (3,4) are 1 and y = x + 1 respectively.

Slope is simply expressed as change in y over the change in x.

Slope m = ( y₂ - y₁ )/( x₂ - x₁ )

Given the data in the question;

Point A(5,6)

Point B(3,4)

Slope m = ?

To determine the slope, plug the given coordinates into the slope formula and simplify.

Slope m = ( y₂ - y₁ )/( x₂ - x₁ )

Slope m = ( 4 - 6 )/( 3 - 5 )

Slope m = ( -2 )/( -2 )

Slope m = ( -1 )/( -1 )

Slope m = 1/1

Slope m = 1

Next, use the the formula for the equation of line to determine the y-intercept 'b'.

y = mx + b

Plug in slope m = 1 and point (5,6)

6 = 1(5) + b

6 = 5 + b

b = 6 - 5

b = 1

Now that we have both the slope m ( 1 ) and y-intercept b ( 1 ), plug these values into y = mx + b to find the linear equation.

y = mx + b

y = 1x + 1

y = x + 1

Therefore, the slope is 1 and equation of line is y = x + 1.

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Answer:

Step-by-step explanation:

31/2x-7

Answer:

interior = 150° , exterior = 30°

Step-by-step explanation:

the sum of the exterior angles of a polygon = 360°

since the polygon is regular then each exterior angle is

360° ÷ 12 = 30°

the sum of the exterior angle and interior angle = 180° then

interior angle = 180° - 30° = 150°

Any line segment that starts at the circle's center and ends at one of the circle's edges is known as a radius. The circumference is 471 yards

Do not worry; we have you covered. Simply enter the diameter into this formula, C=[tex]\pi[/tex]d, if you know it. Instead, did you receive the radius? No issue, just use the equation C=2[tex]\pi[/tex]r. For all the information you need on calculating a circle's circumference using its diameter or radius, keep reading. To make things simple, we even provide a circumference calculator.

To determine the circumference using the radius, use the formula C = 2[tex]\pi[/tex]r. The radius of the circle is denoted by "r" in this expression. Again, you can enter the number value of, which is a closer approximation of 3.14, into your calculator.

Any line segment that starts at the circle's center and ends at one of the circle's edges is known as a radius.

You might have noticed that this resembles the formula C = [tex]\pi[/tex]d. This is due to the fact that the diameter can be thought of as 2[tex]\pi[/tex]r because the radius is only half as long as the diameter.

Circumference= 2[tex]\pi[/tex]r

                         = 2*3.14*75 yards

                          = 471 yards

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Answer:

x < -7/6

Step-by-step explanation:

In a equation that show a greater than or less than sign can be a equal sign .

After losing 4 Kg ,the weight of Artur is 14 Kg .

In the question ,

it is given that ,

the ratio of weight of Max : Artur is 5 : 9 .

So the weights of Max and Artur before dieting is 5x and 9x .

Now Artur goes on dieting and lose 4 Kg weight and

the ratio of weight of Max and Artur becomes 5:7  .

and the weights of Max and Artur after dieting is  5x and 7x .

Present weight of Artur = 7x .

As we can see that the change in Artur weight is 9x - 7x = 2x

According to the question

2x = 4

x = 2

hence Artur now weighs 7*(2) = 14 Kg

Therefore , after losing, 4 Kg the weight of Artur is 14 Kg .

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The integer in the solution set of 5/6m - 4 < 1/3m + 5 that would make it false is 20

The set is given as

S:{−18, 2, 15, 20}

The inequality expression is given as

five sixths m minus four is less than one third m plus 5

Rewrite the inequality expression properly

So, we have

5/6m - 4 < 1/3m + 5

Subtract 1/3m from both sides of the inequality expression

So, we have

1/2m - 4 < 5

Add 4 to both sides of the inequality expression

So, we have

1/2m < 9

Divide both sides of the inequality expression hy 1/2

So, we have

m < 18

This means that the integers in the solution set are integers that are less than 18

These integers are −18, 2, 15

All other integers would make the inequality false

Hence, the solution is 20

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Using permutation and combination we can calculate that she can get 63 different types of pizza.

Permutations and combinations are the various ways in which elements from a set may be chosen, typically without replacement, to create subsets. This choice of subsets is known as a permutation when the order of the selection is taken into account, and as a combination when it is not.

The total of the decisions we make given an initial set of n items is known as a combination. Permutation, on the other hand, counts the number of possible arrangements of n separate items. This will help us recall that combinations place more emphasis on choice than on placement, order, or arrangement.

Now Cody can get any two toppings out of the 7.

Number of ways in which Cody can pick 2 toppings out of 7 is given by the use of combination,

7C2 = 21 different ways.

Again the number of ways in which 3 different pizza s can be selected is given by 21 × 3 = 63 ways.

Hence Cody can create 63 different pizzas.

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Probability of choosing a red gumball choosing a blue gumball and choosing a green gumball are 2/9,  3/9,   4/9   RESPECTIVELY.

four green balls three blue gumballs and two red gumballs all the same size and shape.

total number of balls =9;

red ball =2

green ball=4

blue ball =3

as we know, the probability formula by simply dividing the favorable number of outcomes by the total number of possible outcomes.

so, according to the question;

probability of choosing a red gumball choosing= no. of red balls/total number of balls

=>2/9=0.22

probability of choosing a blue gumball choosing= no. of blue balls/total number of balls

=>3/9=0.33

probability of choosing a green gumball choosing= no. of green balls/total number of balls

=>4/9=0.44;

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The equation that can be use to find the how many miles, x, Omar ran each day after work is x =  (Total distance he ran in one week - The total distance he run before the work in one week) ÷ 7, he ran 6 miles each days  after work

The total number of days he run = 7 days

Total distance he ran in one week = 63 miles

The distance he run before the work = 3 miles

The total distance he run before the work in one week= 7×3

= 21 miles

The total distance he run after the work = 63 - 21

= 42 miles

The equation that can use to find how many mile x, Omar ran each day after work = (Total distance he ran in one week - The total distance he run before the work in one week) ÷ 7

Substitute the values in the equation

= 42/7

= 6 miles

Hence, the equation that can be use to find the how many miles, x, Omar ran each day after work is x =  (Total distance he ran in one week - The total distance he run before the work in one week) ÷ 7, he ran 6 miles each days  after work

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The value of x is 67°.

To determine the value of x,

Draw a line parallel to lines l and m passing through the vertex at angle x dividing it into two angles a and b.

∠a  = 35°   (Interior Alternate angles are congruent)

∠b + 148°  = 180°  (Co-Interior angles are supplementary)

⇒ ∠b = 32°

∠x  = ∠a + ∠b

⇒ ∠x  = 35° + 32°

⇒ ∠x = 67°

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The following results of the quadratic equation are summarized below:

Vertex: (h, k) = (3, 1)

Axis of symmetry: x = 3

Min/Max value: f(3) = 1 (Maximum)

y-Intercept: - 8

x-Intercepts: (2, 0), (4, 0)

Domain: All real numbers.

Range: y ≤ 1.

Sketch of the graph: Please see image.

Standard form: f(x) = x² - 6 · x + 8

Rigid transformations: Horizontal translation / Reflection about x-axis / Vertical translation

In this problem we have a quadratic equation in standard form, whose definition is shown below:

f(x) - h = C · (x - h)²        (1)

Where:

Now we proceed to determine each of the required features:

Vertex

The quadratic equation has a vertex at point (3, 1).

Axis of symmetry

The axis of symmetry of the parabola is x = 3.

Min/Max value

For as the vertex constant is a negative number, then the vertex represents a maximum. Then, we evaluate the function at x = 3:

f(3) = 1

y-Intercept

The y-intercept is the value of the quadratic equation evaluated at x = 0.

f(0) = - (0 - 3)² + 1

f(0) = - 9 + 1

f(0) = - 8

x-Intercepts

The x-intercepts are the values of x such that f(x) = 0, all these can be found by using algebra properties:

- (x - 3)² + 1 = 0

- (x² - 6 · x + 9) + 1 = 0

- x² + 6 · x - 9 + 1 = 0

x² - 6 · x + 8 = 0

(x - 2) · (x - 4) = 0

Then, the x-intercepts of the parabola are (2, 0) and (4, 0).

Domain

The domain of all quadratic equations are all real numbers.

Range

Since the vertex constant is negative, the range of the quadratic equation is the subset of all real numbers equal or less than the y-value of the vertex.

Sketch of the graph

Please check the image attached below to see the graph.

Standard form

The standard form of the quadratic equation is:

f(x) = x² - 6 · x + 8

Rigid transformations done

Let be g(x) = x², it is transformed into f(x) = - (x - 3)² + 1 by using the following rigid transformations:

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[tex]4 {x}^{3} - 36x = 0 \\ 4x( {x}^{2} - 9) = 0 \\ 4x = 0 \\ \\ or \\ {x}^{2} - 9 = 0 \\ \\ \frac{4x}{4} = \frac{0}{4} =0 \\ \\ \\ (x - 3)(x + 3) = 0 \\ \\ x + 3 = 0 \\ \\ or \\ x - 3 = 0 \\ \\ \\ x = 0 \\ or \\ x = - 3 \\ \\ or \\ \\ x = 3[/tex]

ATTACHED IS THE SOLUTION

Answer:

1.  3 and -5

2.  7

Step-by-step explanation:

The zeros of functions are the x-values when y = 0, i.e the point(s) at which the line crosses the x-axis.

To find the zeros of the given functions, set the function to zero and solve for x.

Given function:

[tex]y=5(x-3)(x+5)[/tex]

Set the function to zero:

[tex]\implies 5(x-3)(x+5)=0[/tex]

[tex]\implies \dfrac{5(x-3)(x+5)}{5}=\dfrac{0}{5}\\[/tex]

[tex]\implies (x-3)(x+5)=0[/tex]

Using the Zero Product Property, set each factor equal to zero and solve for x:

[tex]\implies (x-3)=0 \implies x=3[/tex]

[tex]\implies (x+5)=0 \implies x=-5[/tex]

Therefore, the zeros of the function are 3 and -5.

Given function:

[tex]y=(x-7)^2[/tex]

Set the function to zero and solve for x

[tex]\implies (x-7)^2=0[/tex]

[tex]\implies \sqrt{(x-7)^2}=\sqrt{0}[/tex]

[tex]\implies x-7=0[/tex]

[tex]\implies x=7[/tex]

Therefore, the zero of the function is 7 (with multiplicity 2).

The length of the edge of the box is 6 cm.

Here, we are given that the volume of a box is 216 cm cube.

Here, we assume that the box is a cube and not a cuboid since only then we will be able to find the edge of the box.

The volume of a cube is given by the formula-

Volume = side × side × side

Let the side of the given cube be x.

Then we can form the following equation-

[tex]x^{3}[/tex] = 216

x = (216)^1/3

we can find the 216 is the cube of 6. Thus,

x = 6

Hence, the length of the edge of the box comes out to be 6 cm.

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Answer:

the 66th term is 1095

The value of the missing number in box A is [tex]1\frac{1}{2}[/tex]

The value of the missing number in box B is [tex]7\frac{1}{4}[/tex]

In order to determine the value of A, subtract [tex]1\frac{1}{4}[/tex] from [tex]2\frac{3}{4}[/tex]. Subtraction is the mathematical operation that is sued to determine the difference between two or more numbers

A =  [tex]2\frac{3}{4}[/tex] -  [tex]1\frac{1}{4}[/tex]

[tex]1\frac{3 - 1}{4}[/tex] = 1 [tex]\frac{2}{4}[/tex] = [tex]1\frac{1}{2}[/tex]

In order to determine the value of B, add [tex]4\frac{1}{2}[/tex] and [tex]2\frac{3}{4}[/tex] together. Addition is the process used to determine the sum of two or more numbers.

B = [tex]4\frac{1}{2}[/tex] + [tex]2\frac{3}{4}[/tex]

[tex]6\frac{2 + 3}{4}[/tex] = [tex]6\frac{5}{4}[/tex] = [tex]7\frac{1}{4}[/tex]

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Answer:

the answer for n is 5

Step-by-step explanation:

2 + n = 7

n = 7-2

n = 5