pls help this is due today

3. Farmer John has cows and chickens on his farm.

His farm animals have 128 legs and 48 heads total. How many cows and how many chickens are on the farm?

a. Explain what 128 represents, and how it relates to the cows and chickens.

b. Explain what 48 represents, and how it relates to the cows and chickens.

c. Setup a system, of two equations, to help you solve this riddle.

d. Solve this system using either Elimination or Substitution, show your work, and state your answer as a complete sentence.

Answer:

Part A)

Part B)

Part C)

Part D

The train which is travelled same distance with two different speeds, the slower speed of a train is 25.075 km/hr

The distance covered by the object is equal to the product of the speed at which the object is moving and time taken for covering the distance.

Distance = Time × Speed

Given that,

A train does a journey without stopping in 8 hours

it had traveled 5 km/hr faster , Time taken = 6 hours 40 min = 6.67hr

slower speed = ?

Suppose total distance covered =  X

⇒  X = V × 8    _____(i)

If he travelled 5 km/hr faster

⇒  X = (V+5) × 6.67  _____(ii)

For i and ii distance is same so we can equate both the values,

⇒ V × 8  = (V+5) × 6.67

⇒ 8V = 6.67V + 33.35

⇒ 1.33V = 33.35

⇒ V = 25.075

Hence, the slower speed is 25.075 km/hr

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The expression that is equivalent to the given expression, 10y^7 - 8y^6 + 3y^4/ y^3, is y(10y³ - 8y² + 3)

From the question, we are to determine the expression that is equivalent to the given expression.

The given expression is

10y^7 - 8y^6 + 3y^4/ y^3
First, we will write the given expression properly

The given expression written properly is

10y⁷ - 8y⁶ + 3y⁴ / y³

Now,

To determine the equivalent expression, factorize the numerator

Factorizing the numerator

10y⁷ - 8y⁶ + 3y⁴

y⁴(10y³ - 8y² + 3)

Thus,

The expression becomes

y⁴(10y³ - 8y² + 3) / y³

This can be written as

y⁴/y³ × (10y³ - 8y² + 3)

Now, divide y⁴ by y³

y⁴/y³ = y

Thus,

The expression becomes

y × (10y³ - 8y² + 3)

y(10y³ - 8y² + 3)

Hence, the equivalent expression is y(10y³ - 8y² + 3)

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Answer:

x=0

Step-by-step explanation:

Answer:

x = 0

Step-by-step explanation: (remember a negative times a negative equals a positive!) (combine like terms!)

2 times 3x, plus 2 times 1; -7 times x, -7 times -1 = 9 - 4x

6x + 2 -7x + 7 = 9 - 4x

-x + 9 = 9 - 4x (add 4x to both sides)

3x +9 = 9 (subtract 9 form both nines)

3x = 0 (divide by 3 on both sides)

x = 0

I hope this helps, let me know if you need more help!

Answer:79

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

The y axis is vertical so you only change the x value.

The coordinate of C after being reflected across the y-axis is (-6, 3) option (C) (-6, 3) is correct.

It is defined as the change in coordinates and the shape of the geometrical body. It is also referred to as a two-dimensional transformation. In the geometric transformation, changes in the geometry can be possible by rotation, translation, reflection, and glide translation.

We have a triangle shown on the coordinate plane.

If ABC is reflected across the y-axis,

Then the coordinate of C

From the figure, the coordinate of C is(before reflection)

C = (6, 3)

The rule for transformation if reflected across the y-axis:

(x, y) → (-x, y)

(6, 3) → (-6, 3)

Thus, the coordinate of C after being reflected across the y-axis is (-6, 3) option (C) (-6, 3) is correct.

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Answer:

mark me as brainliest

Step-by-step explanation:

common stocks

The value of x in the similar triangle is 6 units.

Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion .

Therefore, let's use the similarity ratio to find the value of x in the similar triangle as follows:

Hence,

5 / 40 = x / 48

48 × 5 = 40x

240 = 40x

divide both sides by 40

x = 240 / 40

x = 6

Therefore,

x = 6

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The angle LKN in the rhombus is 62 degrees.

A rhombus is a quadrilateral that has 4 sides equal to each other. The sum of angles in a rhombus is 360 degrees.

Opposite angles are equal in a rhombus. The diagonals bisect each other at 90 degrees. Adjacent angles add up to 180 degrees.

Therefore, let's find ∠LKN as follows:

m∠JMN = (-x + 69)

m∠LMJ = (-6x + 166)

Therefore,

1 / 2 (-6x + 166) = -x + 69

-3x + 83 = -x + 69

-3x + x = 69 - 83

-2x = -14

x = -14 / -2

x = 7

Therefore,

∠LKN = 1 / 2 (-6x + 166)

∠LKN = 1 / 2 (-6(7) + 166)

∠LKN = 1 / 2 (-42 + 166)

∠LKN = 62 degrees

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Answer:

2((3)(5) + (5)(9) + (3)(9)) = 2(15 + 45 + 27)

= 2(87) = 174 in.^2

The linear program shows that there are different attainable arrangements that accomplish the same ideal objective function value..

Based on the given data, since the objective function values at the five corner points are diverse, able to conclude that there's no one-of-a-kind ideal arrangement for this linear program.

The reality that there are numerous distinctive objective function values at the corner points suggests that there are numerous ideal arrangements or that the objective work isn't maximized or minimized at any of the corner points.

In this case, the linear program may have numerous ideal arrangements, showing that there are different attainable arrangements that accomplish the same ideal objective function value.

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Answer:

-0.182

Step-by-step explanation:

Given expression:

It should be noted that;

1. Positive integer + (Negative integer) = Positive integer - Positive integer

2. Positive integer - (Negative integer) = Positive integer + Positive integer

Our case is point 1. Therefore,

The true statement on the height of the ball when thrown from a building, given the equation, can be found to be A. The ball reaches the ground in 3 seconds.

The equation given of the ball being thrown from a building, gives us the height when solved.

The height of the ball when it reaches the ground is 0 feet so we can insert this in the formula to find the time:
0 = - 5 ( t - 3 ) ( t + 5 )

We can use the zero product property, which states that if the product of two factors is zero, then at least one of the factors must be zero. So, we can set each factor equal to zero and solve for t:

t - 3 = 0 or t + 5 = 0

Solving for t in the first equation, we get:

t - 3 = 0

t = 3

Seeing as t is 3 seconds the first option is correct.

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Answer:

a - (-b), a - (-5)

Step-by-step explanation:

A double negative negative is a positive, so a - (-b) = a + b, and a - (-5) is a + 5. However, a double negative is still a difference, so this answer works.

Answer:

The answer is a-(-b)

Step-by-step explanation:

It says difference, so you delete plus sign with minus sign

Answer:

Starting with the equation:

(x + 1)^2 = 13/4

We can use the square root property, which states that if a^2 = b, then a is equal to the positive or negative square root of b.

Taking the square root of both sides, we get:

x + 1 = ±√(13/4)

Simplifying under the radical:

x + 1 = ±(√13)/2

Now we can solve for x by subtracting 1 from both sides:

x = -1 ± (√13)/2

Therefore, the solutions to the equation are:

x = -1 + (√13)/2 or x = -1 - (√13)/2

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

This is a wild guess...

Answer:x=-8

Step-by-step explanation:

3.2+(−1/2)x−2=4.8x+2−5.2x

−0.1x=0.8

x=-8

Answer:

x=-8

Step-by-step explanation:

x=-8

Answer:

7/8

Step-by-step explanation:

Answer:

1/4 x 7/2

First, let's convert each fraction into percentages.

1/4= 25%

7/2= 350%

Now just multiply them together.

25x350= 8750

Convert it back into a fraction.

8750% = 175/2 = 871/2 as a fraction.

Hope this helps!

Answer:

100 people

Step-by-step explanation:

first we gotta find 90% of 1000 to do that we multiply 1,000×90% or 1000×0.90 (same thing)

this equals 900 so 900 people don't know the name of their rep in congress subtract 1000-900 thus 100 ppl know there rep in congress

Answer:

100 people did know they're representative

Step-by-step explanation:

You just have to scale up the problem for example 10% of 100 is 10 but 10% of 1,000 is 100(If you need me to be more clear please let me know)

According the given question the answer is Exterior Angle Theorem   m∠BCD = 88°.

What is the Exterior Angle Theorem?

The Exterior Angle Theorem states that the measure of an exterior angle of a triangle is equal to the sum of the measures of the two remote interior angles.

Since secant EC and tangent BC intersect at point C, we know that ∠ECD and ∠BCD are alternate interior angles and are therefore congruent. So we can find the measure of ∠BCD by finding the measure of ∠ECD.

mEB is an exterior angle to triangle BCD, so we can use the Exterior Angle Theorem to find that:

mEB = mECD + mBCD

Substituting the given values, we get:

171° = mECD + 83°

Solving for mECD, we get:

mECD = 171° - 83° = 88°

Since ∠ECD and ∠BCD are congruent, we know that:

mBCD = mECD = 88°

Hence, m/BCD = 88°.

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Answer:

$54925

Step-by-step explanation:

Monthly Rent = 803

Number of apartments = 60

Kelly's commission = 9.5% -> 9.5/100 = 0.095

So

803*60*0.095 = ?

4577.10 per month.

12 months in a year

4577.10 * 12 = $54925.20

Rounded to nearest whole dollar 54925

Kelly makes $54925 per year

Answer:

D

Step-by-step explanation:

plug in the coordinates for x and y

The measure of the minor arc m∡rv = 111°

Recall that according to the principle of angle of intersecting secants, (a-b)/2 = c

Where a = ∡RV
b = ∡SU = 37°:

and c = ∠T (the angle between intersecting secants.

Thus, if (a-b)/2 = c, and b = c = 37 degrees, then we can substitute these values into the equation to get:

(a - 37) / 2 = 37

Multiplying both sides by 2 gives:

a - 37 = 74

Adding 37 to both sides gives:

a = 111

Therefore, a is equal to  m∡rv = 111°.

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To sketch the graph of the function f(x) = 2cos^2(x) - 3x + 4 for the values of x between 0 and 2, we can follow these steps:

1. Determine key points: Find the critical points and important features of the function within the given range. This includes the x-intercepts, local maxima, and minima.

2. Plot the x-intercepts: To find the x-intercepts, set f(x) = 0 and solve for x. In this case, cos^2(x) = (0 + 3x - 4)/2. Find the values of x where this equation holds true.

3. Identify local maxima and minima: Use calculus or other methods to find the local maximum and minimum points of the function within the given range.

4. Sketch the graph: Once you have the key points, plot them on a graph and connect them smoothly. Pay attention to the shape and behavior of the function.

Since the process of sketching a graph is best done visually, I'm unable to provide an image here. However, by following the steps outlined above, you can plot the graph of f(x) within the range of x between 0 and 2. Remember to label the axes and indicate any important points you have found.

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The value of 815÷8−3 is 791/3

Given,

815÷8−3

We need to simplify the given equation using the PEMDAS rule.

It is the order to solve an equation.

P. -parenthesis

E - exponents

M -multiplication

D - division

A -addition

S - subtraction

Example:

( 1 + 2 ) ÷ 6 x 2 - 1

Remove the parenthesis first.

= 24 ÷ 6 x 2 - 1

Multiplication.

= 24 ÷ 12 - 1

Divide

= 2 - 1

= 1

Simplify 815÷8−3.

Applying PEMDAS rule

We see that we have division and subtraction.

Division first

= 815 ÷ 8  - 3

= 815/8 - 3

Find lcm

= (815 - 3x8) / 8

= (815 - 24) /8

= 791 / 3

Thus the value of 815÷8−3 is 791/3

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The gradient of the blue line as shown in the graph is 0.25

The gradient of any line or curve tells us the rate of change of one variable with respect to another.

To calculate the gradient of the blue line, we use the formula below.

Formula:

Where:

From the graph,

Given:

Substitute these values into equation 1

Hence, the gradient of the blue line is 0.25.

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Answer:

= -10√3 - √3 . 5^3/2

Step-by-step explanation:

Apply the distributive law: a(b + c) = ab + ac

a = -5 √3, b = 2, c = √5

-5 √3 . 2 + -(5√3) √5

Apply minus-plus rules: + (-a) = -a

= -5 . 2√3 - 5 √3 √5

Simplify

= -10√3 - √3 . 5^3/2