Richard and Teo have a combined age of 25. Richard is 4 years older than twice​ Teo's age. How old are Richard and​ Teo?

Answer:

10

Step-by-step explanation:

a1=2

a=2

an=-5an-1+3

plug in

(2)5=10

Answer:

Step-by-step explanation:

4m-3/4=-9+4m/84m-3/4=-9+4m/84m-3/4=-9+4m/84m-3/4=-9+4m/84m-3/4=-9+4m/84m-3/4=-9+4m/84m-3/4=-9+4m/84m-3/4=-9+4m/8

Two steps that will complete the list correctly are:

4. The original measurement should be multiplied by the conversion factors.

5. Verify that it makes sense.

A conversion factor can be used to switch from one set of units to another by multiplying or dividing a number. When a conversion is necessary, the appropriate conversion factor to an equivalent value must be applied.

Let's use an example of converting from inches to centimeters to address this query.

10 inches should be converted to cm.

To know more about units, visit:

https://brainly.com/question/18522397

#SPJ4

Answer: x doesn't really have a value, it is determined by the question and is unknown. For example, an equation like (2x = 6) would be asking for the value of x, but an equation that asks you to simplify would have it different, say 4(2x+8) simplified is 8x+32. As I said before, it depends on what they are asking for, otherwise, it is an unknown value.

Step-by-step explanation: math.exe is running in brain

Answer:

ok first you'll have to subtract

6 from 22 = 16

so now easy

you'll say

16+3 and you'll have your answer

Answer:

11

Step-by-step explanation:

ΘΘ + 6 = 22

Factor on the left.

2(Θ + 3) = 22

Divide both sides by 2.

Θ + 3 = 11

With the help of ratio, we know that when the length will be 1cm then the width of the rectangle will be 2cm.

In mathematics, a ratio shows how frequently one number appears in another.

For instance, the ratio of oranges to lemons in a fruit plate would be eight to six if there were eight oranges and six lemons.

Oranges make up 8:14 of the total fruit, whereas lemons make up 6:8 of the total fruit.

So, 1st we have a rectangle which:

length 7cm

width 14cm

Just get the ratio of length:width:

7:14

7/14

1/2

1:2

When height becomes 1cm, then according to the ratio the width will be:

1/2 * 1/1 = 1/2cm

Where 2cm is the width when height becomes 1cm

Therefore, with the help of ratio, we know that when the length will be 1cm then the width of the rectangle will be 2cm.

Know more about ratios here:

https://brainly.com/question/28896354

#SPJ1

The values will be of two digit either 92 or 29, 74 or 47 etc.

Let M = AB(A..B = 0…9) and N = BA. where A and B are numbers from 0 to 9.

The subtraction rule requires the last digit of the difference to be the Difference of A-B. To explain further, for example 44, take the last digit 4. This can be expressed as the difference of 5-1, 8-4, 4-0. (meaning 1st digit is A and 2nd digit is B) = 88 - 44 = 44, similarly 99-55  = 44, 44-0 = 44. So we can represent 44 according to the rules above.

For numbers greater than 100, the last digit can be represented as the sum of the numbers 0 through 9 and the numbers greater than 5. To explain this, let's analyze 121. The last digit is 1.

digit can be represented as the sum of the numbers 0 through 9 and the numbers greater than 5. To explain this, let's analyze 121.

The last digit is 1. Since the number is greater than 100, it must be expressed as the sum of single digit numbers that sum to 11,

so 9+2.8+3.7. + 4.6+5, then applying any of these gives 92+29 = 121, 83+38 = 121, 74+47+121, 65+56=121. So 121 is removed.

Learn more about Two Digit:

https://brainly.com/question/17608141

#SPJ4

a) The sales tax of the person with a subtotal of $24.95 is of: $2.37.

b) The subtotal of a person with a sales tax of $1.61 is of: $16.95.

The amounts are obtained applying the proportion of 9.5%, which represents the sales tax of this restaurant.

The sales tax of the person with a subtotal of $24.95 is obtained with the multiplication of the subtotal by the sales tax of 9.5% = 0.095 as follows, hence:

Sales tax = 0.095 x 24.95 = $2.37.

The subtotal of a person with a sales tax of $1.61 is obtained considering that $1.61 represents 9.5% = 0.095 of the subtotal x, due to the tax rate, as follows:

0.095x = 1.61

x = 1.61/0.095

x = $16.95 -> which is the subtotal of the person.

More can be learned about proportions at https://brainly.com/question/24372153

#SPJ1

In order to solve the challenges we encounter every day, Problem solving strategies are needed. To tackle a specific problem, we must first comprehend it, then create a plan for resolving it, and finally, put the plan into action.            

To sum up, everyone must use problem-solving techniques to overcome the obstacles we confront.

Read the related link on problem-solving :

brainly.com/question/24511305

#SPJ4

30.54cm is the length of the vertical leg.

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

In a right angled triangle  the horizontal leg has a measure of 42.7 centimeters(cm).

The hypotenuse has a measure of 52.5cm.

We need to find the measure of the vertical leg.

We can find this by using pythagoras theorem.

In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides

52.5²=42.7²+x²

2756.25=1823.29+x²

Subtract 1823.29 on both sides

2756.25-1823.29=x²

932.96=x²

Taking square root on both sides

x=30.54

Hence, the length of the vertical leg is 30.54cm.

To learn more on trigonometry click:

https://brainly.com/question/25122835

#SPJ1

Answer And step-by-step explanation: The sum of x and y is 58. In other words, x plus y equals 58 and can be written as equation A:

x + y = 58

The difference between x and y is 18. In other words, x minus y equals 18 and can be written as equation B:

x - y = 18

Now solve equation B for x to get the revised equation B:

x - y = 18

x = 18 + y

Then substitute x in equation A from the revised equation B and then solve for y:

x + y = 58

18 + y + y = 58

18 + 2y = 58

2y = 40

y = 20

Now we know y is 20. Which means that we can substitute y for 20 in equation A and solve for x:

x + y = 58

x + 20 = 58

X = 38

Summary: The sum of two numbers is 58 and their difference is 18. What are the two numbers? Answer: 38 and 20 as proven here:

Sum: 38 + 20 = 58

Difference: 38 - 20 = 18

Hope this is helpful if it is can I be marked With Crown?

Answer:    

x=38 y=20

Step-by-step explanation:

x+y=58

x-y=18

combine

2x=76

x=38

38+y=58

-38    -38

y=20

The correct answer is option A that is sources and methods and this element describes the secondary sources and how we collected our primary data.

The process of gathering and analyzing intelligence is known as "sources and methods." The types of information obtained and the sources of that information differ.

Information collected through espionage, satellite pictures, intercepted communications, and news reports that are available to the public are all examples of intelligence sources.

The sources and procedures used by intelligence services are closely guarded since they include the means by which data is gathered and evaluated, which can be used by adversaries to determine the strengths and objectives of their foes.

To know more about 'primary data' related questions

visit- https://brainly.com/question/28321294

#SPJ4

Answer:

If the model is made using a 1:25 scale, then every inch on the model corresponds to 25 inches on the actual house. Therefore, if a part of the model measures 7 inches, the corresponding measurement on the actual house would be 7 * 25 = <<7*25=175>>175 inches.

Step-by-step explanation:

Answer:

Roughly 7,500.

Step-by-step explanation:

15% of 50,000 is 7,500. That would make their salary about 42,500 after income taxes.

Answer:

$7,500

Step-by-step explanation:

50,000 / 12 = 4,166.67

4,166.67 * 0.15 = 625

625 * 12= 7,500

The interpretation of the straight line graph of the gallons of gas to distance in miles are as follows;

(a) After 100 miles, the equation for the graph and the graph indicates that Linda's car will have more gas

Linda's car will have 1 gallon more gas than Shen's car.

(b) Linda and Shen will have the same amount of gas in their cars after 150 miles

The graph indicates that Shen's car will have less gas than Linda's car before reaching 150 miles

A straight line graph is a graph of a linear equation.

The points on the graphs are;

Linda; (0, 14), (150, 8)

Shen; (0, 11), (150, 8)

The equation for the amount of gas remaining in Linda's car can be found as follows;

Slope of the line = (8 - 14)/(150 - 0) = -6/150 = -1/25 = -0.004

Equation of the line is therefore;

y - 14 = (-1/25)(x - 0)

The slope of the graph of the equation of Shen's car = (8 - 11)/(150 - 0) = -0.02

The equation of the line is; y - 11 = -0.02·x

After 100 miles we get;

Gas left in Linda's car = -0.04 × 100 + 14 = 10

Gas left in Shen's car = -0.02 × 100 + 11 = 9

Therefore, Linda's car will have more gas after 100 miles

Her car will have 10 gallons of gas

(b) From the graph, at the point x = 150, the tanks of Linda and Shen will contain the same amount of gas

If the miles driven is less than 150 miles, the graph indicates that Shen's car will have less gas than Linda's car

Learn more about the graph of linear equations here:

https://brainly.com/question/14323743

#SPJ1

A  1 angle of the square Class 1 is a type of four-sided polygon. It is a regular polygon, meaning that all of its sides have the same length and all of its angles are equal.

There are only right angles in a square. Having the opposing sides parallel defines a square as a quadrilateral. Only one dimension, the side length, may be used to describe a square. Each angle is 90° in length and has an equal number of sides. To help you comprehend the topic better, let's talk more about square angles and work through a few instances. A square Class 1 is a type of four-sided polygon. It is a regular polygon, meaning that all of its sides have equal length and all of its angles are equal. The sides of a square Class 1 are all of the same length, and the angles between them are all 90 degrees. This type of polygon is also known as a regular square.

Learn more about square here

https://brainly.com/question/22970240

#SPJ4

The given sequence is a arithmetic sequence with the common difference is -6.

An arithmetic sequence is a sequence of numbers where the differences between every two consecutive terms is the same. The general form an arithmetic sequence is an=a+(n-1)d

The given sequence is 22, 16, 10.

Here,

Common difference = Second term - First term

16-22=-6 and 10-16=-6

Since the common difference between the terms is same, the given sequence is arithmetic sequence.

Hence, 22, 16, 10 is a arithmetic sequence with the common difference is -6.

To learn more about an arithmetic sequence visit:

https://brainly.com/question/10396151.

#SPJ1

Answer: 7.33 is a terminating decimal. 7.333333... or 7 1/3 is a repeating decimal.

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

An easy way to check is to look for a number that is on an exact corner on the graph for example 3. 1.8 divided by 3 is 0.6

Answer:

808.72 ft

Step-by-step explanation:

We can create a right triangle with the following points:

- the top of the lighthouse

- the base of the lighthouse

- the rock jutting out of the water

I will label the distance from the base of the lighthouse to the rock d.

See the attached image for a detailed model.

Then, solve for the two acute angles of the triangle.

The larger acute angle (∠1) is complementary to 6°, so we can solve by setting their sum to 90°:

6° + m∠1 = 90°

m∠1 = 84°

Because this is a right triangle, the smaller acute angle (∠2) is complementary to the larger acute angle, so we can solve once again by setting their sum to 90°:

m∠1 + m∠2 = 90°

84° + m∠2 = 90°

m∠2 = 6°

We can use either of these angles in combination with the trigonometric ratio tangent to solve for the distance d. I will use tangent of ∠1.

[tex]\tan(84\textdegree) = \dfrac{d}{85 \, \textrm{ft}}[/tex]

[tex]d = 85\tan(84\textdegree)[/tex]

[tex]d \approx 808.72 \, \textrm{ft}[/tex]

The given function is solved to obtain x = -4, 0.5.

Quadratic formula is used to find the roots of a quadratic function f(x) = ax² + bx + c as x = (-b ± √(b² - 4ac))/2a.

The expression b² - 4ac is called the determinant D.

When D = 0, roots are real and equal.

For D > 0, roots are real and unequal and for D < 0, roots are complex conjugates.

The given quadratic function is f(x) = 2x² + 7x - 4.

It can be solved by using quadratic formula as follows,

2x² + 7x - 4 = 0

x = (-7 ±√(-7²- 4 × 2 × -4))/(2 × 2)

  = (-7 ± 9)/(2 × 2)

  = -4, 0.5

Hence, the value of x found by using quadratic formula are -4 and 0.5 respectively.

To know more about quadratic formula click on,

https://brainly.com/question/9300679

#SPJ1

The required sentences can be completed as follows:

68% of the scores are between 68 and 84.

95% of the scores are between 60 and 92.

99.7% of the scores are between 52 and 100.

To complete the first sentence, we need to find the range of scores that includes 68% of the values.

We know that 68% of the scores fall within 8 points of the mean, so the range of scores that includes 68% of the values is 76 - 8 to 76 + 8, or 68 to 84.

Therefore, the first sentence can be completed as follows:

68% of the scores are between 68 and 84.

To complete the second sentence, we need to find the range of scores that includes 95% of the values.

We know that 95% of the scores fall within 16 points of the mean, so the range of scores that includes 95% of the values is 76 - 16 to 76 + 16, or 60 to 92.

Therefore, the second sentence can be completed as follows:

95% of the scores are between 60 and 92.

To complete the third sentence, we need to find the range of scores that includes 99.7% of the values.

We know that 99.7% of the scores fall within 24 points of the mean, so the range of scores that includes 99.7% of the values is 76 - 24 to 76 + 24, or 52 to 100.

Therefore, the third sentence can be completed as follows:

99.7% of the scores are between 52 and 100.

Learn more about the empirical rules here:

brainly.com/question/27914019

#SPJ1

The cost function is C(w) = 300/w + 18w² and the cost of materials for the cheapest such container is $222.0

From the question, we have the following parameters that can be used in our computation:

The length is twice the width;

Volume = 10m³

This means that:

V = 10

l = 2w

The volume of the container is calculated as:

V = lwh

So, we have

v = 2w²h

By substitution, we have

h = v/2w²

So, we have

h = 10/2w²

Divide

h = 5/w²

The surface area of an open rectangular storage is:

A = 2h(l + w) + lw

So, we have

A = 2h(2w + w) + 2w²

A = 2h(3w) + 2w²

Substitute h = 5/w²

A = 2 * 5/w² * (3w) + 2w²

Evaluate

A = 20/w + 2w²

The base costs $15, and the sides cost $9

So, the cost function is:

C(w) = 15 * 20/w + 2w² * 9

Rewrite as:

C(w) = 300/w + 18w²

We have

C(w) = 300/w + 18w²

Differentiate

C'(w) = -300/w² + 36w

Set to 0

-300/w² + 36w = 0

Rewrite as:

-36w = -300/w²

Cancel out the negatives

36w = 300/w²

Multiply through by ²

36w³ = 300

Divide through by 36

w³ = 8.33

Take cube roots of both sides

w = 2.03

Recall that:

C(w) = 300/w + 18w²

So, we have:

C(2.03) = 300/2.03 + 18(2.03)²

Evaluate

C(2.03) = 222.0

Hence, the cost of the materials is $222.0

Read more about minimizing functions at:

brainly.com/question/12313753

#SPJ1

The required area of the shaded perimeter is given as 28 square units.

These are the equation that contains trigonometric operators such as sin, cos.. etc.. In algebraic operations.

Here,
As shown in the figure the shaded part is a parallelogram,
The area of the parallelogram is given as = base × height
Substitute the value in the above equation,
Area = 4sin45 × 7 / sin45  [since base / 4 = sin45 and 7 / height = sin45]
Area = 4/√2 × 7 / [1 / √2]
Area = 28

Thus, the shaded perimeter's needed area is specified as 28 square units.

Learn more about trigonometry equations here:

brainly.com/question/22624805

#SPJ1
                                               

39,877,760 license plates have at least one repeated letter.

What is probability?

The degree to which something is likely; the probability that something will occur or will be the case.

Here, we have

Given

In a certain country license plates consist of zero or one digit followed by four or five uppercase letters from the roman alphabet.

We have to find how many license plates have at least a repeated letter.

For this,

We will first find how many different license plates the country can produce and how many license plates have no repeated letter.

The country can produce:

10 x 26 x 26 x 26 x 26 x 26 = X

10 x 11,881,376 = X

118,813,760 = X

license plates have no repeated letter:

10 x 26 x 25 x 24 x 23 x 22 = X

10 x 7,893,600 = X

78,936,000 = X

Now, we find license plates have at least repeated letter:

118,813,760 - 78,936,000 = X

39,877,760 = X

Hence, 39,877,760 license plates have at least one repeated letter.

To learn more about probability from the given link

https://brainly.com/question/25839839

#SPJ4

The reaction of the graduate student on inflation is that a cost-of-living increase to her stipend.      

Inflation is the pace of expansion in costs over a given time-frame. Inflation is regularly a wide measure, like the general expansion in costs or the expansion in the typical cost for many everyday items in a country.

Inflation is term which states there is an expansion in the cost level for any labor and products.

In the unique situation, a set of experiences graduate living in the US got a payment of 18,000 dollar. However, there is a critical expansion that US economy endures. In this way the expense of products and the administrations accessible to individuals increments quickly. Individuals presently need to spend more on everything. Accordingly the alumni understudy requirements to request the typical cost for most everyday items to be remembered for the payment as need might arise to spend more on living.

Thus, graduate student argue on the a cost-of-living increase to her stipend.      

To know more about inflation visit:

brainly.com/question/29065347

#SPJ4

Answer: $5.50

Step-by-step explanation:

$275 x 2% = 550

550/100 = 5.5

The salesperson makes $5.50 in commission.