A textbook store sold a combined total of 423 psychology and math textbooks in a week. The number of psychology textbooks sold was two times the number of math textbooks sold. How many textbooks of each type were sold?

Answer:

x=6

Explanation:

16-(x+5)=15

The weight of the U.S. flag in pounds is 2,998.44 pounds.

The dimension of the U.S. flag is in feet. The dimensions have to be converted to yards.

1 foot = 1/3 yards

225 / 3 = 75 yards

505 / 3=  168.33 yards

The next step is to determine the area of the U.S. flag.

Area = length x width

75 x 168.33 = 12,625 yards²

Weight of the U.S. flag in ounces = 12,625 yards² x 3.8 = 47,975 ounces

1 ounce = 1/16 pounds

Weight of the U.S. flag in pounds = 47,975 / 16 = 2,998.44 pounds

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Answer:

5 - [tex]\frac{40}{5}[/tex] = 5 - 8 = -3

Step-by-step explanation:

The first mistake made by the student is in Step A where the problem was not copied down correctly.

The perimeter of the figure is 32 cm

The figure represents the given parameters

On the figure, we have the lengths of the side lengths to be:

Lengths = 7 cm, 5 cm, 3 cm, 4 cm, 4 cm, 9 cm

To determine the perimeter of the shape, we simply add the side lengths

Mathematically, this can be represented as

Perimeter = Sum of side lengths

Substitute the known values in the above equation So, we have the following equation

Perimeter = 7 cm + 5 cm + 3 cm + 4 cm + 4 cm + 9 cm

Evaluate the sum

Perimeter = 32 cm

Hence, the perimeter is 32 cm

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1. Therefore, the sequence is geometric.

2. Therefore, the sequence is arithmetic.

3. Therefore, the sequence is neither arithmetic nor geometric.

4. Therefore, the sequence is geometric.

5. Therefore, the sequence is neither arithmetic nor geometric.

For the arithmetic, geometric, and harmonic sequences, a collection of sequences and series formulas is provided below. The sequence and series formulas presented here contain formulas for determining the sum of the n terms in a series as well as the nth term of the sequence.

A common difference exists between two succeeding terms in an arithmetic series. There is a typical ratio between succeeding terms in a geometric series.

1. Given sequence is 27, 9, 3, ...

As the difference between the number is large.

So, we will check for geometric sequence.

[tex]r = \frac{27}{9} = \frac{3}{3} = \frac{1}{3}[/tex]

Therefore, the sequence is geometric.

2. Given sequence is 4, 8, 12, ...

As we can see there is uniform difference of 4

Therefore, the sequence is arithmetic.

3. Given sequence is 50, 56, 60, ...

As the difference between the number is not uniform.

So, we will check for geometric sequence.

[tex]r = \frac{50}{56} \neq \frac{56}{60}[/tex]

There, the sequence is neither arithmetic nor geometric.

4. Given sequence is 36, 12, 4, ...

As the difference between the number is large.

So, we will check for geometric sequence.

[tex]r = \frac{36}{12} = \frac{12}{4} = 3[/tex]

Therefore, the sequence is geometric.

5. Given sequence is 4, 24, ...

The number of terms is very less and hence we can't decide.

There, the sequence is neither arithmetic nor geometric.

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Answer:

  y = -1/3x +6

Step-by-step explanation:

You want the equation of the line through (3, 5) perpendicular to the line y = 3x +2.

The given equation is in slope-intercept form. This lets us identify its slope as 3.

  y = mx + b . . . . . . line with slope m and y-intercept b

  y = 3x +2 . . . . . . . line with slope 3 and y-intercept 2

The perpendicular line will have a slope that is the opposite reciprocal of this:

  m = -1/3 . . . . slope of the perpendicular line

The equation for a line with slope m through point (h, k) is ...

  y -k = m(x -h)

The equation for a line with slope -1/3 through point (3, 5) is ...

  y -5 = -1/3(x -3)

Solving for y gives us ...

  y = -1/3x +1 +5 . . . . . eliminate parentheses, add 5

  y = -1/3x +6 . . . . . equation of the desired line

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The vertex form of the function g(x)= 2[tex]x^2[/tex]+16x+6 is g(x)= 2[tex](x+4)^2[/tex]-26.

What is vertex form of the function?

   The function's maximum or lowest possible output is represented by the vertex of the quadratic function's graph. When viewing a graph, the vertex is the highest or lowest point on the parabola. Utilizing the vertex formula is the simplest technique to discover the vertex. It is simple to locate the vertex of the parabola using the vertex form of a quadratic equation. Y=a(xh)2+k is the definition of the generic vertex form, where h is the x-coordinate and k is the y-coordinate of the vertex.

Here the given function is ,

=> g(x) = 2[tex]x^2[/tex]+16x+6

=> g(x) = 2([tex]x^2+[/tex]8x+3)

=> g(x) = 2([tex]x^2+[/tex]8x+16-16+3)

=>g(x) = 2 [[tex](x+4)^2[/tex]-13]

=> g(x)=  2[tex](x+4)^2[/tex]-26

Therefore vertex form of the function is g(x)= 2[tex](x+4)^2[/tex]-26 and vertex is (-4,-26).

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Answer:

g(x)=2(x+4)^2-26

Has a minimum value of -26

Step-by-step explanation:

i got it right!

The first four terms of the sequence would be -

9, 12, 15, 18

Number sequence is a progression or an ordered list of numbers governed by a pattern or rule. For example -

3, 6, 9, 12, 15

x, x + 2, x + 4, x + 6

We have the following sequence -

f(n) = 3n + 6

We can write the first four terms as -

f(1) = 3 x 1 + 6 = 9

f(2) = 3 x 2 + 6 = 12

f(3) = 3 x 3 + 6 = 15

f(4) = 3 x 4 + 6 = 18

Therefore, the first four terms of the sequence would be -

9, 12, 15, 18

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The equation in slope intercept form is x =4 .

Given:

x = -5

x + 5 = 0

here slope m = ∞.

line equation passes through (4,-3) with m = ∞

-3 = 1/0(4) + c

4 + c = 0

c = -4.

y = (1/0)x - 4

x - 4 = 0

x = 4.

Therefore the equation in slope intercept form is x =4 .

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The scale used is 1 cm : 3m

The likelihood that at least 150 people will collaborate and react in a fresh sample of 400 telephone numbers is 0.9953.

The probability informs us of the likelihood that an event will occur. It is necessary for the likelihood to fall between 0 and 1. The likelihood of success is 1, whereas the probability of failure is 0.

Given, that the market research  company has a history of having a 44% response rate for its telephone surveys.

Therefore, p=44%=0.44=μ

n=400

p=150/400

p=0.375

The standard deviation is then equal to,

σ=√(p(1-p))/n

σ=√(0.44(1-0.44))/400

σ=√(0.44×0.56)/400

σ=0.025

Using the z-table, the values are as follows:

z=(p-μ)/σ

z=(0.375-0.44)/0.025

z=-2.6

p(p>0.375)

=p(z>-2.6)

=1-p(z<-2.6)

=1-0.0047

=0.9953

=99.53%

Therefore, the likelihood that at least 150 people will participate and provide information in a new sample of 400 telephone numbers

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An equation relating C to M is (C) = 23.75 + 0.65M.

Given,

In the question:
The standard charge S (in dollars) is given by the

function S=18.95 +0.50M, where M is the number of miles driven.

The insurance charge I (in dollars) is given by the function I=4.80 +0.15M.

and, Let C be the total charge (in dollars) for a rental that includes insurance.

To find the An equation relating C to M.

Now, According to the question:

By the topic:

The total Charge (C) = The standard Charge (S) + The insurance charge (I)

Thus,

The total Charge (C) = 18.95 +0.50M + 4.80 +0.15M.

Combine like terms:

The total Charge (C) = 18.95 + 4.80 + 0.50M + 0.15M

The total Charge (C) = 23.75 + 0.65M

Hence, An equation relating C to M is (C) = 23.75 + 0.65M.

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Answer:

-11.8

Step-by-step explanation:

68x0.8

11x3.8

11x3.8=41.8

68x0.8=54.4

54.4-41.8=12.6

Now minus add a minus to it and you get -12.6 FT

The expression that is equivalent to the given expression is 6y³ + 8y⁵

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

The given expression is

2y (3y^2 + 4y^4)

This can be properly written as

2y (3y² + 4y⁴)

Now, to determine the expression that is equivalent to this expression, we will expand the expression by applying the distributive property.

2y(3y² + 4y⁴)

2y(3y²) + 2y(4y⁴)

Multiplying

6y³ + 8y⁵

Hence,

The expression is 6y³ + 8y⁵

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The surface area of the rectangular prism is 172cm^2

Prism is a three-dimensional solid object in which the two ends are identical. It is the combination of the flat faces, identical bases and equal cross sections. The faces of the prism are parallelograms or rectangles.

The surface area of prism is 2A+ pH

where A is the base area

P is the perimeter of the base

and h is the height

for a rectangular prism, the base area is 2×8=16cm^2

perimeter of a rectangle= 2(l+b)

= 2(8+2)

= 20cm

surface area =( 2× 16) + 20× 7

= 32+ 140

= 172cm^2

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Part a: Monthly percent rate = y/x

Part b:  APR = y/x × 12.

For the given question;

Average daily balance sheet of Suzanne's is  x dollars.

Finance charges = y

Part a: monthly percentage rate

Finance charge = Monthly percent rate × Average daily balance

Monthly percent rate = Finance charge/Average daily balance

Monthly percent rate = y/x

Part b: APR

Thus,

For 12 months.

APR = y/x × 12

Thus, the value of APR for the period of 12 months is APR = y/x × 12 .

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The letters for XYZ are in the wrong order.

The correct statement should be [tex]\triangle TUV \cong \triangle ZYX[/tex]

============================================

Further Explanation:

The order of the letters matters when writing congruence statements.

The claim is that [tex]\triangle TUV \cong \triangle XYZ[/tex]

The first two letters of each are "TU" and "XY" in that order.

But notice how TU has a single tickmark, while XY has a double tickmark. The two sides are clearly different.

--------

Instead, the statement should be: [tex]\triangle TUV \cong \triangle ZYX[/tex] because of the following three facts:

Notice that:

Answer:

y=2/3x

Or

X=3/2y

Step-by-step explanation:

3y=2x

/3. /3

y=2/3x

3y=2x

/2. /2

3/2y=x

Hopes this helps please mark brainliest

Answer:

x=3/2y

y=2/3x

Step-by-step explanation:

for x - first screen shot

for y - second screen shot

Hope that helps!

choose any 2 points on the graph

To calculate the slope use the formula:

slope = y (point 2)-y (point 1)/x (point 2)-x (point1)

substitute the choses points in

calculate your awnser

Zimbardo did not use a control group. Experiments are performed to reach meaningful conclusions using the appropriate research method. The correct answer is (A).

Experiments whether they are done in natural settings or in a controlled environment need to follow certain ethics. But the Stanford Prison Experiment is an exception. In this experiment, Philip Zimbardo, the Stanford psychologist, took paid participants and asked them to be “guards” in a mock prison at Stanford University.

As soon as the experiment began, the “guards” began mistreating the “prisoners,” in order to provoke evil circumstantially. The conclusion of the study suggested innocent people, thrown into a situation where they have power over others, will begin to misuse that power. And people who are put into a situation where they are powerless will be driven to submission.

The Stanford Prison Experiment has proved to be a Fraud. Philip Zimbardo, the Stanford psychologist who did the experiment, and interviews of the participants, offers convincing evidence that the guards in the experiment were trained to be cruel. This proves that the experiment’s most memorable moment of a prisoner screaming out of rage and proclaiming, “I’m burning up inside!” was the result of the prisoner's acting skills. Many of them think of this study as more of a dramatic demonstration with no real outcomes. The Zimbardo prison experiment is a classic study that has been recently reevaluated and exposed as a fraud.

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Si X es la cantidad total de alimento en la heladera, (1/10)*X es la cantidad de manzanas, entoces vemos que la fraccion es 1/10.

Digamos que la variable X representa la cantidad total de comida en la heladera.

Sabemos que un tercio del total de los alimentos son solidos, entonces la cantidad de alimentos solidos es:

(1/3)*X

Luego 1/2 de estos son verduras, entonces la cantidad de verduras que tenemos es:

(1/2)*(1/3)*X

Finalmente, 3/5 de las verduras son manzanas, entonces la cantidad de manzanas es:

(3/5)*(1/2)*(1/3)*x = (1/10)*x

Asi hemos encontrado la fraccion.

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Answer:333

Step-by-step explanation:

Since this is a scalene triangle, two sides will equal the same, meaning two angles will equal the same. So 70 has an equal on the other side, meaning 70+70=140, and x will equal the remainder, meaning x=40.

Hope that helps.

Answer:

C = 30pi inches

Step-by-step explanation:

The radius is 15 inches (said so in the question)

The diameter is 30 inches (The diameter is twice the radius)

The circumference is

C = pi•d

C = pi•30

C = 30pi

The circumference is 30pi inches.

Answer:

14.7

Step-by-step explanation:

Answer:

6[tex]\sqrt{6}[/tex]

or

≈14.7

Step-by-step explanation:

√6 x √6 x√6 can someone help​

√6 x √6 x√6 =

6[tex]\sqrt{6}[/tex]

or

≈14.7

The rate per minute at which Karama can paint banisters is 0.02.

In the given question,

Karama can paint a staircase banister in 50 minutes.

We have to find the rate per minute at which Karama can paint banisters.

Since we have to find the rate per unit. Rate per unit means how much Karama can paint in one minute.

To find the rate per unit we divide 1 by 50.

As we know that Karama can paint one staircase banister in 50 minute.

So we can write it as

50 minute = 1 staircase banister paint

Now in 1 minute.

1 minute = 1/50 staircase banister paint

Simplifying

1 minute = 0.02 staircase banister paint

Hence, the rate per minute at which Karama can paint banisters is 0.02.

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The linear factors of the given cubic polynomial are (x-1)(x+4)(x+5).

The linear factors of a polynomial are the first-degree equations that are the building blocks of more complex and higher-order polynomials.

Given a cubic polynomial, x³+8x²+11x-20

x³+8x²+11x-20 = (x-1)(x²+9x+20)

= (x-1)(x²+4x+5x+20)

= (x-1){x(x+4)+5(x+4)}

= (x-1)(x+4)(x+5)

Hence, The linear factors of the given cubic polynomial are (x-1)(x+4)(x+5).

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The expression represents the amount of total money. Then the total late fee Camilla owes will be $2.1.

What is Algebra?

Algebra is the study of graphic formulas, while logic is the interpretation among those signs.

Camilla borrows a book from the library for d days.

The library charges a late fee 0.10 dollars per day that the book is late.

If Camilla returns the book more than 21 days after she borrowed it.

Then the expression will be 0.10d.

The total amount is given as

Total amount = 0.10 d

Total amount = 0.10 x 21

Total amount = $2.1

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Answer:

Step-by-step explanation:

I think this is the answer you were looking for but im not 100% sure

The car use 6.67 liters of petrol to travel 160 miles of distance.

Given, the car use the same amount of petrol for each mile it travels.

A car use 55 liters of petrol to travel 495 miles.

we have to find the petrol used to travel 160 miles.

As, 55 liters = 495 miles

495 miles = 55 liters

1 mile = 55/495 liters

Now, 160 miles = 55/495×160 liters

160 miles = 6.67 liters

So, the car use 6.67 liters of petrol to travel 160 miles of distance.

Hence, the car use 6.67 liters of petrol to travel 160 miles of distance.

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William will arrive home at 16:45, it will take 45 min to reach home.

Given, that William leaves work at 16:00

Distance from work to home is 36 kilometres

Also, he drives at an average speed of 48 km/hr

Now, using distance-speed relation to find the time

So, as we know Distance = Speed × Time

On putting the values of distance and speed, we get

36 km = 48 km/hr × Time

On dividing both the sides by 48, we get

36/48 = (48×Time)/48

36/48 = Time

Time = 0.75

Hence, he will take 0.75 hr to reach home.

0.75 hr ≈ 45 minutes

As, 1 hr = 60 minutes

0.75 hr = 0.75 × 60 = 45 minutes

So, William will arrive home at 16:45

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