25 less than 4 times a number is 63. What is the number?

The proportional relationship graph that represents the table of values given would look like the graph shown below.

A proportional relationship graph always passes through the point of origin, (0, 0). The slope of the graph of a proportional relationship is also called the constant of proportionality, k, which can be calculated by using the coordinates of any point on the line, (x, y).

Constant of proportionality, k = y/x.

The equation for a proportional relationship is given as y = kx.

Given the table of values above which represents a proportional relationship, the graph of the table of values will go through the points below:

(0, 0)

(14, 7)

(6, 3)

(26, 13)

Therefore, the graph of the proportional relationship would look like the graph attached below which passes through:

B. (0, 0) and continues through the point (14, 7).

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we know that

In a paralleogram opposite angles are congruent and consecutive angles are supplementary angles

That means

and

so

substitute the given values

(3x+y)=5y+20

3x-4y=20 ------> equation 1

substitute

(3x+y)+(5x+10)=180

8x+y=170

y=170-8x ------> equation 2

solve the system

substitute equation 2 in equation 1

3x-4(170-8x)=20

solve for x

3x-680+32x=20

35x=20+680

35x=700

x=20

Find the value of y

y=170-8(20)

y=10

step 2

Find the measure of angle B

Solution:

The question will be represented below as

To figure out the horizontal component (x), we will use the trigonometric ratio below

By substituting the values, we will have

Step 2:

To figure out the vertical component (y), we will use the trigonometric ratio below

By substituting the values, we will have

Hence,

The horizontal component is = 63.1 km/h

The vertical component is = 90.1 km/h

For the constant speed, it take 5 minutes 3 seconds after you depart JBLM will you be the closest to Mt. Rainier.

Speed:

Speed means a rate of change of position of an object in any direction. Speed is measured as the ratio of distance to the time in which the distance was covered.

Given,

You're flying from Joint Base Lewis-McChord (JBLM) to an undisclosed location 165 km south and 152 km east. Mt. Rainier is located approximately 56 km east and 40 km south of JBLM.

Here we need to find the time taken after you depart JBLM will you be the closest to Mt. Rainier for the constant speed of 800 km/hr.

Let us consider +x direction is east, and the -y direction is south.

We know that, JBLM is at the origin (0, 0). All distance units are presented in kilometers.

While we consider that, you are flying on line

165x + 152y = 0

We know that the slope of the line

ax + by = c

is given by -a/b, which suggests we can form the equation of a perpendicular line by swapping x and y coefficients and negating one of them.

Then, we get the equation as,

152x - 165y = c

That is perpendicular to the flight path.

Now we need to find c so that this is true at the coordinates of Mt. Rainier.

The perpendicular line through (56, -40) is

152x - 165y - (152(56) - 165(-40)) = 0

When we expand it then we get,

152x - 165y - (8512 + 6600 ) = 0

152x - 165y - 15112 = 0

We know that the distance in km from JBLM (0, 0) to this line is given by

So, when we apply the value of (x,y) as (0,0) then we get,

=> | 152(0) - 165(0) - 15112 |/√(152²+165²)

=> 15112/√50329

=> 15112/224.34

≈ 67.362

Therefore at the constant speed of  800 km/hr, you will have flown that 67. 362 km.

Then for one km you would take,

=> 62.076/800 hr ≈ 0.0842 hr

When we convert this then we get,

=> 0.0842 = 5 minutes 3 seconds.

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Given:

Initial amount (Base) = 15, 757

Rate of increase = 3.5% or 0.035 in decimal form

Find: new price and the price increase

Solution:

To be able to get the new price, we need to solve for the price increase first. To do that, we need to know what is 3.5% of the old price 15, 757. To calculate that, we will multiply 0.035 by 15,757.

3.5% of 15, 757 is 551.50. This is the price increase of the car next year.

Hence, by next year, the new price will now be 15,757 + 551.50 = 16, 308.50.

The possibles values of d i.e., the distance between Berlin and Budapest will be as follows

200 miles < d < 458 miles

The triangle inequality theorem explains the connection between a triangle's three sides. This theorem states that for any triangle, the sum of the lengths of the first two sides is always greater than the length of the third side.

Case 1

129 miles + d > 329 miles

⇒ d > 200 miles

Case 2

129 miles + 329 miles > d

⇒ 458 miles > d

From Case 1 and Case 2, for d we can say

200 miles < d < 458 miles

Therefore, The possibles values of d i.e., the distance between Berlin and Budapest will be as follows

200 miles < d < 458 miles

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Answer:

Step-by-step explanation:

Angles A and B, same as angles C and D are vertical angles and have equal measure according to definition of vertical angles:

Find the measure of angles C and D.

∠C and ∠D are supplementary with ∠A or ∠B, so the pair sums to 180°.

So the angle measures are:

Answer:

The answer is the third one.

Step-by-step explanation:

They show the points plotted correctly.

Answer:

To solve this problem you will have to use PEMDAS (parenthesis, exponents, multiplication, division, addition, and subtraction).

Solution:

Given the graphed polygon below:

To determine the coordinates of the vertices after reflection over the x-axis,

step 1: Give the coordinates of DEFG.

Thus, we have

step 2: Give the reflection formula, over the x-axis.

For reflection over the x-axis, we have

step 3: Give the coordinates after reflection over the x-axis.

From the formula in step 2,

we thus have

ANSWER

The solution is: -3 < p < 3.8

EXPLANATION

When we have an absolute value inequality, to "eliminate" the absolute value we have to write the following:

To solve this we have to add 4 everywhere in the inequality:

And divide everything by 10:

To graph we have to draw a line from -3 to 3.8, with empty circles at the ends - because those values are not included in the solution.

The expression equivalent to 3(−4.5b − 2.1) − (6b + 0.6) is -19.5b - 6.9.

Given expression:

3(−4.5b − 2.1) − (6b + 0.6)

To simplify the expression open the brackets and multiply the terms,

-13.5b − 6.3 − 6b - 0.6

Now, combine the like terms together and add them,placing a negative sign in front of the terms

-13.5b − 6b - 0.6 - 6.3

-19.5b - 6.9

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The ladder leaning on the house formed a right angled triangle

Using an illustration from the diagram given:

To get the height the house makes with the ladder, we will apply pythagoras' theorem:

Hypotenuse² = opposite² + adjacent²

Here is the meaning of each statement:

The percentage of households that have the internet in 2007 is 61.7%

The percentage of households that have the internet in 1984 is k%.

The percentage of households that have the internet in 2017 is greater than the percentage of households that have the internet in 2000.

The sum of the percentage of households that have the internet in 1997 and 2001 is approximately equal to the percentage of households that have the internet in 2009.

Percentage is the fraction of an amount expressed as a number out of 100. In order to change a number to percentage, multiply the number by 100. The sign that represent percentage is %.

A function is an expression or rule that defines the relationship between the independent variable and the dependent variable. A function could be a linear function or an exponential function.

In this question,

x = is the number of years after 1980

and the independent variable is the percentage of households that use the internet after 1980.

H(27) = 61.7

1980 + 27 = 2007

This means that 61.7% households use the internet 27 years after 1980 or 61.7% households use the internet in 2007

H(4) = k

1980 + 4 = 1984

This means that k% households use the internet 4 years after 1980 or k% households use the internet in 194

H(37) > H(30)

This means that the percentage of households that use the internet 37 years after 1980 is greater than the percentage of households that use the internet 30 years after 1980

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(a) Josh would pay $592.48 for the television at the department store.

(b) Josh would pay $634.8 for the television at the superstore.

(c) Josh would pay less for the television at the department store.

Given:

Wholesale price of television = $529

(a) In the department store,

Television wholesale price is marked up by 40%.

Discount = 20%

Marked price = 529 × ( 1 + 40%)

                      = 529 × (140/100)

                      = $740.6

Selling price = 740.6 × (1 - 20%)

                     = 740.6 × (80/100)

                     = $592.48

(b) In the superstore,

Television wholesale price is marked up by 20%.

Marked price = 529 × ( 1 + 20%)

                       = 529 × (120/100)

                      = $634.8

He must pay the full in-store price.

Selling price = $634.8

Ignoring the tax, he must pay the full price at the superstore which is $634.8.

(c) As the selling price in the department store is less than in the superstore, $592.48 < $634.8.

So, Josh would pay less for the television at the department store.

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SOLUTION

Given the question in the image, the following are the solution steps to answer the question.

STEP 1: Describe the first experiment

Two slips were drawn simultaneously, this means that the outcome of the first slip drawn will be multiplied by the outcome of the second slip drawn. The probability will follow the "and rule of probability".

STEP 2: Describe the second experiment

Since one slip is drawn and then put back into the box before a second slip is drawn, this is a PROBABILITY WITH REPLACEMENT. The outcome of the first event will not affect the outcome of the second event since the paper slips are replaced hence not reduced.

STEP 3: Describe the third experiment

Since one slip is drawn and not put back into the box before a second slip is drawn, this is a PROBABILITY WITHOUT REPLACEMENT. The outcome of the first event will affect the outcome of the second event since the paper slips reduce.

Difference between b and c is that b is with replacement and the total outcomes does not change while c is without replacement and the total outcomes change(reduce) after the first slip is drawn.

ANSWER

EXPLANATION

We want to find the number of different combinations of colors possible if both spinners are spun at once.

To do this, we have to find the product of the number of colors on each spinner.

That is:

The answer is option B.

Lauren can add $30 each month to her savings account

Income made by Lauren from part-time job = $185

Money sent to Lauren by her parents = $120

Total income of Lauren  = Money from job+ money received from parents = 120+185 = $305

Let her total expenses be x

Substituting the values in the formula we get:

Sum of Lauren's paycheck + Money she gets from her parents = Total expenses+ 11% more than her total expenses

185 + 120 = x+11% of x

305=x+11/100*x

305 = 1.11x

x=274.77 or 275

Money she can add in her savings account each month = Total money received - Expenses = 305 - 275 = $30

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Considering the parameters of the normal distribution for American men's heights, it is found that:

a) The percentage greater than 74 inches is: 2.5%.

b) The proportion between 64 and 71.5 inches is: 0.815.

The z-score of a measure X of a variable that has mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by the following equation:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

In the context of this problem, the mean and the standard deviation of the heights of American men are given as follows:

[tex]\mu = 69, \sigma = 2.5[/tex]

The proportion of heights that is greater than 74 inches is one subtracted by the p-value of Z when X = 74, hence:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

Z = (74 - 69)/2.5

Z = 2.5

Z = 2.5 has a p-value of 0.9772.

1 - 0.9772 = 0.0228, hence the percentage is of 2.28%. Using the Empirical Rule, this percentage is rounded to 2.5%.

The proportion of heights between 64 inches and 71.5 inches is the p-value of Z when X = 71.5, subtracted by the p-value of Z when X = 64, hence:

X = 71.5:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

Z = (71.5 - 69)/2.5

Z = 1

Z = 1 has a p-value of 0.84. (rounded with the Empirical Rule).

X = 71.5:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

Z = (64 - 69)/2.5

Z = -2

Z = -2 has a p-value of 0.025. (rounded with the Empirical Rule).

Hence the proportion is:

0.84 - 0.025 = 0.815.

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Write a mathematical expression for the following statement: x is at least 19

this means that x > 19

in set builder notation: (19,∞)

X' is the set of blood types that type AB- cannot donate blood to

Y is the set of blood types that type AB+ can donate blood to

From the table, AB- cannot donate blood to:

(This is all the blood types minus the ones that can receive from AB-)

U - {AB+, AB-} = {A+, B+, A-, B-, O+, O-} = X'

Y = {AB+}

So the negations:

X = {AB+, AB-}

Y' = {A+, B+, AB-, A-, B-, O+, O-}

And this is our final answer

Using unitary method, it is better to buy 18 ounce of rice for $6.30

There are three types of rice

Rice 1

The cost of 18 ounce of rice = $6.30

Here we have to use the unitary method

The cost of 1 ounce of rice = 6.30/18

= $0.35

Rice 2

The cost of 12 ounce of rice = $4.56

Apply unitary method

The cost of 1 ounce of rice = 4.56/12

= $0.38

Rice 3

The cost of 7 ounce of rice = $2.59

Apply unitary method

The cost of 1 ounce of rice = 2.59/7

= $0.37

So It is better to buy rice 1

Hence, unitary method, it is better to buy 18 ounce of rice for $6.30

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Distance Between Two Points

We are given two points on the graph attached to the question.

The red point has coordinates (7,3) and the origin is at (0,0)

I'll work out the graph to show the required distance.

The required distance (in the red drawing) is the hypotenuse of a right triangle of lengths 7 and 3, thus the distance is calculated as:

Calculating, we get d is approximately 7.62

Answer:

506.40

Step-by-step explanation:

.

The perimeter of a figure or shape is the distance around it.

The perimeter of the given path would be

9x + 10x^2 - x^3 + 4x^2 - 7x + 8 - x^2 + 9x + 12

We would collect like terms. It becomes

- x^3 + 10x^2 + 4x^2 - x^2 + 9x + 9x - 7x + 8 + 12

= - x^3 + 13x^2 + 11x + 20

The correct option is C

If the half-life is 15 hours and there are 18 g, it means that after 15 hours,

18/2 grams would decay, leaving behind 18/2 grams

This means that 9 grams would be left.

After another 15 hours (making a total of 30 hours), 9/2 grams would decay leaving behind 9/2 grams (i.e 4.5 grams.

After another 15 hours (making a total of 45 hours), 4.5/2 grams would decay leaving behind 4.5/2 grams. Hence 2.25 grams are left

After another 15 hours (making a total of 60 hours), 2.25/2 grams would decay leaving behind 2.25/2 grams.

Hence after 60 hours, only 1.125 grams would be left

Answer: 600

Step-by-step explanation:

I did not check your work from parts a and b.

Assuming they are correct,

You have found the total amount after the first year and the total amount after the first two years.

To find the total amount for only the second year,

you subtract the second year totals from the first year totals.

So,

(b) - (a) = 1000 - 400 = 600

All the values are;

1) f (-4) = 16

2) f (1) = 1

3) f (5) = 10

4) f (7) = 14

5) f (9) = 50

What is substitution method?

Find the value of any one of the variables from one equation in terms of the other variable is called the substitution method.

Given that;

The function is;

f (x) = { 4 - 3x ; if x ≤ 1

     = { 2x  ; if x > 1

     = { 5x + 5 ; if x ≥ 9

Now, Find all the values as;

Since - 4 is belong in x ≤ 1, so we get;

f (x) = 4 - 3x

f (-4) = 4 - 3 × -4

f (-4) = 4 + 12

f (-4) = 16

And, Number 1 is belong in x ≤ 1, so we get;

f (x) = 4 - 3x

f (1) = 4 - 3 × 1

f (1) = 4 - 3

f (1) = 1

And, Number 5 is belong in x > 1, so we get;

f (x) = 2x

f (5) = 2 × 5

f (5) = 10

And, Number 7 is belong in x > 1, so we get;

f (x) = 2x

f (7) = 2 × 7

f (7) = 14

And, Number 9 is belong in x ≥ 9, so we get;

f (x) = 5x + 5

f (9) = 5 × 9 + 5

f (9) = 50

Thus, All the values are;

1) f (-4) = 16

2) f (1) = 1

3) f (5) = 10

4) f (7) = 14

5) f (9) = 50

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Relation 1:

It is a function because one point of its range (axis y) have two points in the domain (axis x).

Relation 2:

It is not a function because one point in the domain have two points in the range:

Relation 3:

It is a function because each point in the domain have a different point in the range.

Relation 4:

It is not a function because the point -7 in the domain have three values for the range:

The answer is, the relations: 2,4 are not functions and the functions 1, 3 are functions.