necesito ayuda con estas operaciones
3x=12
3x= -5=0
x+4=17
9y+3=21
5(x-2)=20
x÷2=4
2x÷=4
5÷x=2
4x+5=3x-6
3(x-2) =0
x÷3-4=0
5(7-x) =31-x
3(2x-2) =2(3x+9)

Answer:

x = 130°

Step-by-step explanation:

The sum of two interior angles in a triangle is equal to an exterior angle that is supplementary to the third interior angle.

To simply put:

x = 85 + 55

x = 130°

The likelihood of choosing a green marble is unlikely.

Probability is used to determine how likely it is that a random event would happen. The probability that a random event occurs lie between 0 and 1.  The more likely the event is to happen, the closer the probability value would be to 1. The less likely it is for the event not to happen, the closer the probability value would be to zero.

The probability of picking a green marble is 1/4 or 0.25. 0.25 is less than 0.5. This means it is unlikely the event would occur.

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There are 750 women runners at the festival out of 1050 runners.

What is the arithmatic calcaltion?

Arithmetic is a branch of mathematics that deals with the manipulation of numbers and the properties of operations such as addition, subtraction, multiplication, and division. It is often referred to as "elementary mathematics" or "number theory" and is one of the oldest and most basic branches of mathematics.

If 5/7 of the runners at the festival are women, we can use this information to find how many runners are women.

Let's call the number of women runners W. We know that 5/7 of the runners are women, so we can set up the following proportion:

W / 1050 = 5/7

To find the value of W, we can cross-multiply and then solve for W:

W * 7 = 5 * 1050

W = 750

Hence, there are 750 women runners at the festival out of 1050 runners.

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Answer:

18

Step-by-step explanation:

9+9

[tex]\huge\text{Hey there!}[/tex]

[tex]\huge\textbf{ASSUMING}[/tex]

[tex]\mathsf{(10 - 6)^2 + 8 - 22}[/tex]

[tex]\mathsf{= (4)^2 + 8 - 22}[/tex]

[tex]\mathsf{= 4^2 + 8 - 22}[/tex]

[tex]\mathsf{= 4 \times 4 + 8 - 22}[/tex]

[tex]\mathsf{= 16 + 8 - 22}[/tex]

[tex]\mathsf{= 24 - 22}[/tex]

[tex]\mathsf{= 2}[/tex]

[tex]\huge\text{Therefore, your answer should be: \huge\boxed{\mathsf 2}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Answer:

3.75 cm²

Step-by-step explanation:

Area of a triangle = 1/2bh = 1/2(2.5)(3) = 3.75 cm²

Answer:

Answers below

Step-by-step explanation:

a)solving for f(2)

f(2)= 5(2) - 3 (input the given value for the letter x)

f(2) = 10 -3 (multiply your inputed value with whatever is infront of it)

f(2) = 7 (Connect simmilar terms)

b) solving for f(32)

remember to follow the steps from above

f(32) = 5(32) - 3

f(32) = 160 -3

f(32) = 157

c) solving for f(-8)

we are going to end up on the negatives and thats okay. Not all answers have to be positive

f(-8) = 5(-8) -3

f(-8) = -40 -3

f(-8) = -43

The cost of 4.25kg of potatoes will be £2.38

A proportion is an equation in which two ratios are set equal to each other. For example, if there is 1 boy and 3 girls you could write the ratio as: 1 : 4(for every one boy there are 3 girls) 1 / 4 are boys and 4 / 5 are girls. 0.20 are boys (by dividing 1 by 5). It can also be defined as the size, number, or amount of one thing or group as compared to the size, number, or amount of another.

The cost of 2.5kg of potatoes is £1.40

Therefore the cost of 1kg potatoe = 1.40/2.5 = £0.56

This means that the cost of 4.25 kg = 0.56× 4.25

= £2.38

Therefore the cost of 4.25kg of potatoes is £2.38

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Step-by-step explanation:

commn this number agen division

Therefore , the solution of the given problem of ratio comes out to be  300,000.

A portion or fraction in mathematics displays how frequently one number is included in another. For instance, if there are eight orange and six lemons in a fruit plate, the proportion of oranges to lemonade is eight to six, or 8:6, which is comparable to the ratios 4:3 or the decimal 1.333.

Here,

We must use our grasp of proportionality to establish the maximum amount of shares that can be owned in this exercise.

The 20 huge variations will allow Blackbird Oil to store a total of 300,000 gallons.

The details in the assertion can be summed up as follows:

20 brand-new, sizable oil storage tanks.

The ratio is 4:5 for 12,000 gallons.

Because of the proportional ratio of 4.05, the enormous receptacles are 1.25 times larger than the ordinary ones, giving us:

=> 1200 * 1.25 = 15000

=> 15000 * 20 = 300000

As a result, the supplied problem's answer equals 300,000.

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Rachel rode her bike a total distance in miles over the course of two days, as shown by the expression: -5x + 168.

Let x be the duration of Rachel's bicycle ride yesterday.

Distance = speed * time

Thus, the equation becomes.

= 9x + 14(12 - x)

On solving;

= 9x + 168 - 14x

=-5x + 168

Rachel rode her bike a total of miles over the course of two days, as shown by the expression: -5x + 168.

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The center of the ellipse is (2, -8).

The endpoints of the major axis are 10 units from the center.

The endpoints of the minor axis are 9 units from the center.

To graph the ellipse, connects (2, 2), (11, -8), (2, -18) and (-7, -8) with  smooth curve.

What is ellipse?

An ellipse in mathematics is a plane curve that has two focal points and is such that the sum of the two distances from any point on the curve to the focal points is a constant. It generalizes a circle, a special kind of ellipse in which the two focal points coincide.

Given:

The equation of ellipse is,

[tex]\frac{(x-2)^2}{81}+(\frac{(y+8)^2}{100}=1[/tex]

Since, the general form of ellipse is,

[tex]\frac{(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2}=1[/tex]

where,

(h, k) is the center of ellipse

a is the minor axis

b is the major axis.

Here (h, k) = (2, -8) is the center of the ellipse.

9 is the minor axis and 10 is the major axis of the ellipse.

Also the graph of ellipse connects (2, 2), (11, -8), (2, -18) and (-7, -8) with  smooth curve.

Hence,  the center of the ellipse is (2, -8).

The endpoints of the major axis are 10 units from the center.

The endpoints of the minor axis are 9 units from the center.

To graph the ellipse, connects (2, 2), (11, -8), (2, -18) and (-7, -8) with  smooth curve.

The graph of the ellipse is attached below.

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Answer:

blank = 18.2

Step-by-step explanation:

17/10 = 1.7

66/|0 = 6.6

Then:

23.1 + 17/10 - x =66/10

is equivalent to:

23.1 + 1.7 - x =  6.6

24.8 - x = 6.6

24.8 - 6.6 = x

18.2 = x

Check:

23.1 + 1.7 - 18.2 = 6.6

To find the percent full of the popcorn box, we need to divide the volume of popcorn in the box by the total volume of the box, and then multiply by 100 to convert the result to a percentage.

First we need to find the total volume of the box:

V = l x w x h

V = (2 1/2 in x 2 3/4 in x 5 in) = (5/2 in x 7/4 in x 5 in) = (35/4 in^3) = 8.75 in^3

Now we can calculate the percent full:

percent = (26 in^3 / 8.75 in^3) x 100 = 2.97 x 100 = 297%

The popcorn box is 297% full.

It's worth noting that 297% means that the popcorn box is almost 3 times full

Answer: B, the second answer is correct.

Step-by-step explanation: Hope it helps, mark brainliest and give thanks please!

Answer:nitrogine

Step-by-step explanation:

Answer:

Nitrogine. because all the others are in it

(a) At the top of the ride, her apparent weight is 518.5 N. This is because, at the top of the ride, the centripetal force acting on her is directed towards the center of the Ferris wheel, which acts in opposition to her weight. Since her weight is 520 N, and the centripetal force is 1.5 N, the net force acting on her is 518.5 N.

Apparent weight, also known as effective weight or net weight, is the weight that an object appears to have when it is in motion. It is the force that an object feels as a result of a combination of its true weight and any additional forces acting on it, such as the centripetal force.

(b) At the bottom of the ride, her apparent weight is 520.5 N. This is because, at the bottom of the ride, the centripetal force acting on her is in the same direction as her weight, so the net force acting on her is the sum of her weight and the centripetal force.

(c) The radius of the Ferris wheel can be determined using the formula v^2 = r * g, where v is the angular velocity, r is the radius and g is the acceleration due to gravity. Given that angular speed and the apparent weight is known, you can use this formula to find the radius.

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Answer:

Step-by-step explanation:

8) a) In a parallelogram, opposite sides are equal and parallel.

               BC = AD

         12x - 1 = x  + 21

         12x      = x + 21  + 1

              12x = x + 22

         12x - x = 22

                11x = 22

                  x = 22 ÷ 11

                 x = 2

AD = x + 21

     = 2 + 21

AD = 23

In a parallelogram, adjacent angles are supplementary.

   ∠A + ∠D = 180°

[tex]\sf y - 9 + \dfrac{y}{2}=180\\\\ \dfrac{2y}{2}+\dfrac{y}{2}=180+9\\\\[/tex]

        [tex]\dfrac{3y}{2}=189\\\\y =189*\dfrac{2}{3}\\\\y=63*2\\\\y = 126[/tex]

∠D = 126 ÷2

     = 63

In parallelogram, opposite angles are congruent.

 ∠B = ∠D

   ∠B = 63°

The expressions that have the same product as 0.056 x 0.34 is A. A.56 * 0.34/100, 000.

The concept that will be used is finding of the products or quotient then compare .

The product of the given value 0.056 x 0.34 is 0.01904

The we can compare to the given options as;

A.56 * 0.34/100, 000 = 0.01904

B.0.56*3.4= 1.904

C. 56*34*0.001= 1.904

D. 56*34*1/100 *1/100 = 0.1904

Therefore, option A is correct because it have the same value with the given values.

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missing options:

A.56 * 0.34/100, 000

B.0.56*3.4

C. 56*34*0.001

D. 56*34*1/100 *1/100

Answer and Explanation: To get the two terms on the right to combine into one term, we need the denominators of both terms to be the same. To do this we can plug in x+3 for the bottom left denominator and x-4 for the bottom right denominator. This makes both denominators (x+3)(x-4).

The numerators of both terms on the right just have to add up to 3x-2. One way we could do this is to the right one as 3x and the other as -2 or vice versa.

(x+3)(x-4) simplifies to x^2-x-12 which is why the denominator of the term on the left is that.

Answer:

Step-by-step explanation:

terms1+1ofx

The evaluation of Jared's expression for the average cost per ride at the amusement park indicates;

Q1) The factors are;

First factor = (39.87 + 2·(x - 5)

The second factor = (1/x)

The factor that represents the total cost of Jared's trip is the first factor

Q2) The terms in the first factor are;

The general admission charge = 39.87

The fee for the rides Jared rides = 2·(x - 5)

The number of free rides = 5

The coefficient of the second term is 2

Q3) The cost per ride

Q4) 5 rides

A mathematical expression is a combination symbols and operators that together, produces the quantity in the context.

The expression Jared creates to determine the average cost is presented as follows;

Q1) The factors of Jared's expression are;

The first factor = (39.87 + 2·(x - 5)

The second factor = 1/x

The total cost of Jared's trip to the amusement park= (39.87 + 2·(x - 5)

The factor that is used to fined the unit rate Jared spends per ride = 1/x

Q2) The terms in the first factor are;

The coefficient of the second term of the first factor is 2, which represents the cost per ride

Q3) The coefficient of the second term in the first factor, 2, represents the amount Jared pays per ride in the amusement park

Q4) The number of rides Jared pays for is found using the second term of the fist factor, 2·(x - 5), the number of rides Jared rides, x less the 5, therefore, indicates;

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The vertex is (5,-9)

A vertex is a point on a polygon where two rays or line segments meet, the sides, or the edges of the object come together. Vertex is the plural form of vertices.

The function is given as f(x) = (x - 8) (x - 2)

Taking the parentheses out

f(x) = x2 - 2x - 8x + 16

f(x) = x2 - 10x + 16

The function's vertex is (h, k)

h = -b / 2a

Changing the values

h = - (-10) / 2 (1) (1)

h = 10 / 2

the x coordinate for h = 5

changing the quadratic function's x value

f(5) = (5 - 8) (5 - 2) (5 - 2)

f(5) = (-3) (3) (3)

f(5) = k = -9

Consequently, the vertex is (5, -9).

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Answer:

Step-by-step explanation:

P=m/v

Density = mass / volume

30 is mass

160 is ml

P=30/160

0.1875

Where one would like to see either a World War II movie or one that is based on a comic book character but does not feature aliens. The set of movies they are interested in seeing is: "WWII U (Comix n Aliens')" (Option C) Note that this is a prompt related to sets.

Sets are an orderly collection of items in mathematics that can be expressed in set-builder or roster form. Sets are often expressed by curly brackets; for example, A = 1,2,3,4 is a set.

Some examples of sets include the empty set, finite set, equivalent set, subset, universal set, superset, and infinite set.

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Answer:

1) yes 2) no 3) yes 4) no 5) no 6) no

Step-by-step explanation:

Horizontal line test

Answer:

Step-by-step explanation:

Item Selling Price

Pizza $5.00

Sub $3.00

---------------

Quantity Equation : s = p + 11

Value Equation : 3s+5p = 233

---------------------------

Substitute for "s" and solve for "p"

3(p+11) + 5p = 233

8p + 33 = 233

8p = 200

p = 25 (# of pizzas)

----

s = p+11 = 36 (# of subs)