Use the properties of operations to multiply the expressions. 2x(5 - 0.4x)

Answer:

A. y+3=4(x+1)

Step-by-step explanation:

Lets find an equation having the form y=mx+b, where m is the slope and b the y-intercept.  We are given the slope, so let's add that first:

  y = 4x + b

That was easy.  No how can we find the value for b?  We are given a point that the line passes through:  (-1,-3).  If the line gors through this point, then it must be a valid solution to the equation.  Let's use that point in the equation and solve for b:

 y = 4x + b

 -3 = 4*(-1) + b  for point (-1,-3)

 -3 = -4 + b

  b = 1

The equation becomes y = 4x + 1

Put this into point slope form:

y = 4x + 1

y+3 = 4x + 1 + 3

y+3 = 4x + 4

y+3 = 4(x + 1)

See the attached graph.

Step-by-step explanation:

[tex]- 4u + 3 + 6u =5 + 10u \\ ⇒ - 4u + 6u- 10u = 5 - 3 \\ ⇒ - 8u = 2 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ ⇒u = - \frac{2}{8} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ = - \frac{1}{4} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: [/tex]

The percentage of the purchase price of the sales price is 55.6%

Given:

The owner of a small store buys coats for ​$45. 00 each.

He sells the coats for ​$63. 00 each. What percent of the purchase price is the sale​ price = ?

Profit = selling price - cost price

Profit = 90-50 = $40

percent of the purchase price is the selling price will be

Purchase or cost price/selling price × 100

= 50/90 ×100 = 55.56%

hence we get the percentage as 55.56%

Learn more about Selling price here:

brainly.com/question/1153322

#SPJ4

The function most accurately predicts the total number of companies, y, that the DBA expects to include among its members in x years is y = b + n(x).

Given info,

The Downtown Business Association (DBA) intends to add n new businesses to its membership every year. At the start of this year, the DBA contained b companies. Which function most accurately predicts the total number of companies, y, that the DBA expects to include among its members in x years?

Now,

According to the given information;

y = b + n + n + n + n + n + . . . . . . x times

y = b + n(x)

Hence, the function best models the given case is y = b + n(x)

To learn more about function click here:

brainly.com/question/5975436

#SPJ4

The next consecutive even integer represented by the statement is a + b + 3.5

The statement in the question is represented as

a+b+1.5 is an even integer

As a general rule of numbering;

In this case, the integers have a difference of 2

This is so because, they are even integers and even integers have a difference of 2

Solving further, we can represent the integer with x

So, we have

Current integer = a+b+1.5

Rewrite properly

This gives

Current integer = a + b + 1.5

Recall that:

even integers have a difference of 2

This means that

Next consecutive integer = Current integer + 2

Substitute the known values in the above equation, so, we have the following representation

Next consecutive integer = a + b + 1.5 + 2

Evaluate the sum in the above equation

Next consecutive integer = a + b + 3.5

Hence, the next integer is a + b + 3.5

Read more about consecutive integers at

brainly.com/question/10853762

#SPJ1

The correct answer to inequality is option A .

What is inequality equation?

The mathematical expressions with inequalities area unit those with unequal sides on each side.

Main body:

For this case we have the following inequality:

-4(x+3)≤ -2 -2x

Applying distributive property on the left side we have:

-4x - 12≤ -2 -2x

Adding 2x to both sides of the inequality we have:

-4x +2x -12 ≤-2

-2x-12≤-2

Adding 12 to both sides of the inequality we have:

-2x-12 +12≤ -2 +12

Dividing by 2 to both sides of the inequality:

-2x ≤ 10

Multiplying by -1 on both sides, taking into account that the sense of inequality changes:

x≥ -10/2

x ≥ -5

hence, the solutions are given by all values ​​greater than or equal to -5.

so , option A is correct.

To learn more about inequalities click on the link below

https://brainly.com/question/11613554

#SPJ9

The expression that equals 24 is (4 x 2)(3).

What is an expression?

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a complete sentence. Any one of the following mathematical operations can be used. A sentence has the following structure: Number/variable, Math Operator, Number/Variable is an expression.

(The options are given twice, consider once)

Consider option C.

(4 x 2)(3)

=8 (3)

=8 x 3

=24

So, the expression that equals 24 is  (4 x 2)(3).

To learn more about the expression from the given link

https://brainly.com/question/1859113

#SPJ1

Answer:

fourth option

Step-by-step explanation:

The largest angle in the triangle is opposite the longest side

The smallest angle in the triangle is opposite the shortest side

largest side is WX = 14

shortest side is VW = 9

then smallest to largest angles are

∠ X , ∠ W , ∠ V

Answer: Here's a graph:

Answer:

Step-by-step explanation:

Let the missing part be x.

According to triangle proportionality theorem we have:

The missing length will be 14 units.

What is mean by Triangle?

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

The triangle is shown is figure.

Now,

Let the missing length = x

So, By the definition of triangle proportionality theorem, we get;

⇒ x/28 = 6 /(18 - 6)

Solve for x as;

⇒ x/28 = 6 /(18 - 6)

⇒ x/28 = 6 / 12

⇒ x/28 = 1 / 2

⇒ x = 28/2

⇒ x = 14

Thus, The missing length will be 14 units.

Learn more about the triangle visit:

https://brainly.com/question/23945265

#SPJ1

1.62 is the volume (in cm3) of 2 troy ounces of pure gold .

What is full answer for density?

We determine the volume, V, corresponding to the given amount of gold. We do this by dividing the given mass, m, by the density, d, such that

               V = m/d

  m = 31.03 g

   d = 19.3 g/ml

We proceed with the solution

  V = m/d

     = 31.03/19.3

      ≈ 1.62 ml

Learn more about density

brainly.com/question/15164682

#SPJ4

Answer:

Step-by-step explanation: do your work

it 5x=_2

Answer:

Step-by-step explanation:

354

Lance had a gross pay of $117.5 working on Friday and Saturday

To determine his gross pay, we have to find the number of hours he worked and multiply it by his hourly wage.

This can be done by;

4pm - 9pm = 5 hours.

But he had a non-paid 30 minutes break which will give us his work hours on Friday as 4 hours 30 minutes or 4.5 hours.

On Saturday, he worked from 12pm - 6pm which will give us a work time of 6 hours. He also took a non-paid 30 minutes lunch and his total work time on Saturday is 5 hours 30 minutes or 5.5 hours.

If we add the total numbers of hours worked, we will get

4.5 + 5.5 = 10 hours.

Now we can multiply this by the hourly wage.

10 * 11.75 = 117.5

His gross pay is $117.5

Learn more on gross pay here;

https://brainly.com/question/4356180

#spj1

As per the given ratio, the number of boys in the school is 133.

Ratio:

Ratio refers the relationship between two things when it is expressed in numbers or amounts.

Given,

The ratio of girls to boys in the school is 3 to 1.

Here we need to find the number of boys in the school if the total number of students is 400.

Let x be the number of boys in the school.

So, the here we have the ratio from girls to boys and we have to convert it into boys into girls, then we get,

=> girls to boys ratio = 3:1

So, boys to girls ratio = 1:3

We know that the total number of students are 400

Therefore, the number of boys in the school is,

=> 1/3 x 400 = 133

So, the number of boys in the school is 133.

To know more about Ratio here.

https://brainly.com/question/28155993

#SPJ1

Answer: 3, 4, 6

Step-by-step explanation: just did it on edge

The third quartile (upper quartile) of the data is 38

What is the Median?

The center value or middle value of a data set is the median.

What are the Upper Quartiles?

Upper quartile (Q3) is the center or middle data point of the second half of a data set.

The given data is 33, 25, 42, 25, 31, 37, 46, 29, 38

Order the data set given as:

25, 25, 29, 31, 33, 37, 38, 42, 46

Upper Quartile = 25, 25, 29, 31, 33, 37, 38, 42, 46 = 38

Therefore, the third quartile (upper quartile) of the data is 38

Learn more about the median on:

brainly.com/question/15572643

#SPJ4

Answer:

Following is a very common example of calculating Sales Commission based on levels of Reven…

•=IF(C9>15000,20%,IF(C9>12500,17.5%,IF(C9>10000,15%,IF(C9>7500,12.5%,IF(C9>5000,10%,0))…

This formula says IF(C9 is Greater Than 15,000 then return 20%, IF(C9 is Greater Than 12,500 th…

While it’s remarkably similar to the earlier Grades example, this formula is a great example of how difficult it can be to maintain large IF statements – what would you need to do if your organization decided to add new compensation levels and possibly even change the existing dollar or percent

Step-by-step explanation:

Answer:

10000 meters = 6.214 miles

About 6 miles

Step-by-step explanation:

Soultion: How many meters are in a mile?

1600 meters: roughly 1 mile or 4 laps around the track.

Answer: 6.214

The graph of a straight line represents a linear function.

Any function with one or two variables and no exponents is said to be linear.

The graph of a linear function is a straight line.

Therefore, the graph of a straight line represents a linear function.

Learn more about the linear function:

https://brainly.com/question/20286983

#SPJ1

Answer:

66

Step-by-step explanation:

180 - 114)  These angles are supplemental.  They add to 180

66

Answer:

m<6=66°

Step-by-step explanation:

Because m<2 and m<3 are both on a straight line, we know they must add to 180°:

m<2 + m<3 =180

We know m<3=114°, so:

m<2 +114 = 180

m<2 = 66

Since AB|CD, m<2 and m<6 are corresponding angels, making them equal, and so m<6=66°.

The number of classes is equal to the number of variables plus 2. A pie chart can be used to summarize the data. The upper and lower class limits must be calculated. correct option is (A).

A Pie Chart is a way of summarizing a set of nominal data or displaying the different values of a given variable. This of chart is a circular divided into a series of of segments. each segment represents a particular category. A pie chart uses percentage to compare information.

Learn more about Pie chart here:

https://brainly.com/question/9979761

#SPJ4

The question was incomplete. Check below the complete question.

When data is collected using a qualitative, nominal variable (in other words, male or female), what is true about a frequency distribution that summarizes the data?

A) The upper and lower class limits must be calculated.

B) Class midpoints can be computed.

C) The "2 to the k rule" can be applied.

D) The number of classes corresponds to the number of a variable's values

Answer:

7/5

Step-by-step explanation:

trust me

The function f(x) = - 2 · x + 12 evaluated at x = 6 has an output equal to 0.

Functions are have three features: Input, relation, output. The input is the independent variable, generally known as x, the relation is how the input and output are related, the output is the dependent variable, generally know as y.

In this problem, we should substitute on the input, make all algebraic operations associated to the relation and determine the variable within the output.

The procedure is now shown:

First, substitute on the input:

x = 6

y = - 2 · 6 + 12

Second, make the algebraic operations involved in the relation:

y = - 2 · 6 + 12

y = - 12 + 12

Third, determine the value within the output.

y = 0

To learn more on functions: https://brainly.com/question/28303908

#SPJ1

(i) The probability that 2 pears and 1 orange are eaten in any order is equal to [tex]\frac{14}{55}[/tex]

(ii) The probability that the third fruit eaten is an orange is equal to [tex]\frac{7}{15}[/tex]

(iii) The probability that the first fruit eaten was a pear, given that the third fruit eaten is an orange is equal to [tex]\frac{6}{11}[/tex]

What is Probability?

What are Combinations?

Here, it is given that the box contains 4 pears and 7 oranges in the box.

So, the total number of fruits in the box = 4 + 7 = 11

Combination when 2 pears is chosen out of 4 pears from the box [tex]= {4 \choose 2} = \frac{4!}{2!(4-2)!} =6[/tex]      

Combination when 1 orange is chosen out of 7 oranges from the box [tex]= {7 \choose 1} = \frac{7!}{1!(7-1)!} =7[/tex]

Combination when 2 pears and 1 oranges are taken from the box containing a total of 11 fruits [tex]= {11 \choose 3} = \frac{11!}{3!(11-3)!} =165[/tex]

So, the probability that 2 pears and 1 orange are eaten, in any order,

[tex]P(A) =\frac{ {4 \choose 2} \times {7 \choose 1} }{ {11 \choose 3} } \\\implies P(A) = \frac{6 \times 7}{165} \\\implies P(A) = \frac{14}{55}[/tex]

Now, the probability that the third fruit eaten is an orange is given as,

[tex]P(B)= \frac{{1 \choose 4}{1 \choose 3}{1 \choose 7}+{11 \choose 4}{1 \choose 7}{1 \choose 6}+{1 \choose 7}{1 \choose 6}{1 \choose 5}}{A(11,3)} \\P(B)=\frac{460}{990} \\P(B)=\frac{7}{15}[/tex]

Next, we can find the probability that the first fruit eaten was a pear, given that the third fruit eaten is an orange is a conditional probability problem where one event depends on another event.

The probability that the third fruit is orange P(A) is equal to 7/15

The probability that the first fruit eaten was a pear is calculated as,[tex]P(C)= \frac{{1 \choose 4}{1 \choose 3}{1 \choose 7}+{11 \choose 4}{1 \choose 7}{1 \choose 6}}{A(11,3)} \\P(C)=\frac{252}{990} \\P(C)=\frac{14}{55}[/tex]

So, according to conditional probability,

Probability of C given A,

[tex]P(C/A)=\frac{P(C \cap A)}{P(A)} \\\implies P(C/A)=\frac{\frac{14}{55} }{\frac{7}{15} } \\\implies P(C/A)=\frac{6}{11}[/tex]

There, the (i) probability that 2 pears and 1 orange are eaten in any order is equal to [tex]\frac{14}{55}[/tex]

(ii) probability that the third fruit eaten is an orange is equal to [tex]\frac{7}{15}[/tex]

(iii) probability that the first fruit eaten was a pear, given that the third fruit eaten is an orange is equal to [tex]\frac{6}{11}[/tex]

To learn more about probability from the given link

https://brainly.com/question/25870256

#SPJ1

Answer: andy drove  280 miles in 3 hours

Step-by-step explanation:  are you seriousseious right now?  

In the question various points of x and y re given to plot the graph.

here is the plot attached below:

To know about more plot https://brainly.com/question/15968453

#SPJ1

A loss of 8 points is the situation which is represented by integer -8.

A number system is defined as a system of writing to express numbers.

The situation that could be represented by -8 is option C, a loss of 8 points.

The negative sign indicates a decrease or loss in value.

A distance of 8 meters above sea level represents a positive number because the distance is above.

A rise in temperature of 8 degrees is also positive as it is increasing.

A gain of $8 is also represents the positive value.

-8 represents a loss of 8 points.

The negative sign denotes a decrease or loss in value.

Hence, a loss of 8 points is the situation which is represented by integer -8.

To learn more on Number system click:

https://brainly.com/question/22046046

#SPJ5

Any piece of luggage must have a length, width, and height combined that is less than or equal to 150 cm. A traveler requests to take a package with the maximum permitted volume. if the length and width are to be equal, then the dimensions would be 48*96*72

Any piece of luggage must have a length, breadth, and height combined that is 216 cm or less.

L+W+H=216 (because we want the max volume, we may ignore the "less than part" and set them equal) (since we want the max volume, we can ignore the "less than part" and set them equal)

L = W if the length and width are equal.

Let's construct this new equation by swapping L for W.

Arrange H to the left so that H=216-2W when 2W+H = 216

Consequently, what is volume V=L*W*H=W=W2*(216-2W) =216W2-2W3 div./dW=432W-6W?

2\s432W-6W^2=0

72w-w2=0 divided by 6 on both sides.

W = 72 L H = 72 cm

L=2W is the only item that has altered.

Given that L+W+H=216 and that V=L*W*H=2W*W*(216-3W) =432W2-6W, 3W+H=216

864W-18W2 x 3 V prime

Set V prime to 0, solve it by dividing both sides by 18, and you'll get W = 48. dimensions will be

48, 96, and 72 cm in width ,lenght and height

Learn more about dimensions here

https://brainly.com/question/28815550

#SPJ4