in a history class the girl to boy ratio is 9 to 5 if there are a total of 70 students, how many boys are there​

The total cost of printing 40 shirts at Company B is $610, which is $80 more than the cost at Company A and the difference in cost between the two companies is $610 - $530 = $80.

As per the question given,  

To find the total cost of printing 40 shirts at Company A, we can evaluate the expression 50 + 12x, where x is the number of shirts, as follows:

Total cost at Company A = 50 + 12(40) = $530

To find the total cost of printing 40 shirts at Company B, we can evaluate the expression 10 + 15x as follows:

Total cost at Company B = 10 + 15(40) = $610

Therefore, it would be cheaper to print the shirts at Company A if the total number of shirts to be printed is 40. However, if the number of shirts to be printed is higher, it may be worth comparing the prices at different quantities to find the most cost-effective option.

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From 2 to 101 , the perfect square numbers are ,

Total number of possible outcomes = 100.

Total number of favourable outcomes = 9 .

Hence ,

→ P ( of getting perfect square ) = 9/100

Answer:

35

area of traingle b xh/2 5x4/2 - 10

area of square lxl - 5x5 -25

add- 35

Answer:

The answer would be 35.

Step-by-step explanation:

The area of the shape would be 35 square centimeters because if we divide the shape into 3 different shapes, a square on the bottom and 2 triangles at the top, we can multiply the square's length and width to get an area of 25. Next, we'll multiply the 2 triangles length of 4 with the width of 5 to get a total area of 20 from both of them, we'll then divide the area of 20 by 2 to get 10. Now add 20 and 10 to get 35.

Answer: 48%

Step-by-step explanation:

Answer:

i think 34.3%

Step-by-step explanation:

a) The probability that the computer will be fixed by either A or B is 58%.

b) The probability that it was fixed by B is 57.14%

Given data:

a)

To find the probability that the computer will be fixed by either A or B, we can use the principle of addition for probabilities.

The probability that A can fix the computer is 30% or 0.30, and the probability that B can fix the computer if A cannot is 40% or 0.40.

Therefore, the probability that either A or B can fix the computer is the sum of these probabilities:

P(A or B) = P(A) + P(B if A cannot) = 0.30 + (0.70 * 0.40) = 0.30 + 0.28 = 0.58

Therefore, there is a 58% probability that the computer will be fixed by either A or B.

b)

Let's denote event A as A fixing the computer and event B as B fixing the computer.

P(A) = 0.30 (probability A can fix the computer)

P(B|A') = 0.40 (probability B can fix the computer given that A cannot)

To find P(B|A), the probability that B fixes the computer given that it was fixed, use Bayes' theorem:

P(B|A) = (P(A|B) * P(B)) / P(A)

Since the computer is fixed, P(A) + P(A') = 1, so P(A) = 1 - P(A') = 1 - 0.30 = 0.70

P(B|A) = (P(A|B) * P(B)) / P(A)

P(B|A) = (1 * 0.40) / 0.70

P(B|A) = 0.40 / 0.70

P(B|A) ≈ 0.5714

Hence, if the computer is fixed, there is a 57.14% probability that it was fixed by B.

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Answer:

\(thank \: you\)

here it is the sum of interior angles of a triangle =180

Answer:

35+3 x+2 +52=180

35 +3x+6+52=180

93+3x=180

3x=87

x=87

   ---

    3

x= 29

c=3[x+2]

substituding

c=3[29+2]

c=3x31]

c=93

35+93+52=180

i wrote it down so yall can copy and paste

Answer:

-7/9

Step-by-step explanation:

\(5(\frac{2}{3} )^{2} -3\\\\=5(\frac{4}{9} )-3\\\\=\frac{20}{9} -3\\\\=\frac{20}{9}-\frac{9*3}{9} \\\\=\frac{20}{9} -\frac{27}{9} \\\\=\frac{20-27}{9} \\\\=-\frac{7}{9}\)

Answer:

We can evaluate this using the order of operations. To begin with, we start with the (2/3)^2 since it is an exponent and in parenthesis. This comes to 4/9 because we multiple 2 times 2 to get the numerator and 3 times three for the denominator. Then we multiply by 5. This gives us 20/9 because we are multiplying by 5/1. We use the same process as above. We can express 3 as 3/1 or 27/9. 20/9-27/9 is -7/9. So the answer is -7/9.

Answer:

8700kg

Step-by-step explanation:

b = mass of bricks

l = mass of lorry

b+l = total mass = 11600kg

b = 3l  ==>  l = b/3

substitute: b + b/3 = 11600

multiply every term by 3 to get rid of denominator: 3b + b = 34800

simplify and solve:  4b = 34800  ==>  b = 8700

check:  l = 8700/3 = 2900

2900 + 8700 = 11600?  YES

Answer:

The correct number is -27.

Step-by-step explanation:

-81 ÷ 3 = -27

Answer:

6 ounces

Step-by-step explanation:

3/4 * 8 = 6

Fitness increases with energy intake rate was an assumption varied by Lima, Valone, & Caraco (1985) in their model of squirrel food carrying

Now, According to the question:

A parameter is used to describe the entire population being studied. For example, we want to know the average length of a butterfly. This is a parameter because it is states something about the entire population of butterflies.

Fitness increases with energy intake rate varied by Lima, Valone and Caraco (1985) in their model of squirrel food carrying.

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The given question is incomplete, complete question is:

Mathematical models allow researchers to make different predictions by varying assumptions. Which of the following parameters was an assumption varied by Lima, Valone, & Caraco (1985) in their model of squirrel food carrying?

Answer:

\( \boxed{\sf 319:3388} \)

Step-by-step explanation:

Total number of tickets sold = 3388

Total number of coach tickets = 3069

Total number of first-class tickets = Total number of tickets sold - Total number of coach tickets

= 3388 - 3069

= 319

\( \therefore\)

Ratio of the number of first-class tickets to the total number of tickets = 319:3388

Answer:

Step-by-step explanation:

Given, Total no. of tickets sold = 3388

Total no. of coach tickets = 3069

Then, No. of first class ticket:

= 3388 - 3069

= 319

We need to find the ratio of first-class tickets to the total number of tickets: 319 : 3388

The main belt is not located between these all planets.

What is orbit?

A route that an object in space follows around another is known as an orbit. A satellite is a thing that orbits the earth. An Earth- or moon-like natural satellite is one possibility. Moons are satellites that orbit many planets. A man-made satellite is also possible, such as the International Space Station.

The belt of asteroids is located between the orbits of Mars and Jupiter. The asteroids in this region, known as the main belt, are made up of small rocky bodies that orbit the sun in a region between about 2.2 and 3.2 astronomical units (AU) from the sun.

The distance from the sun to the Earth is about 1 AU, and the distance from the sun to Venus is about 0.7 AU, so the main belt is located beyond the orbits of both Venus and Earth.

The orbits of Saturn and Uranus are much farther out from the sun, at distances of about 9.5 and 19.2 AU, respectively, so the main belt is not located between these planets.

Hence, The main belt is not located between these all planets.

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The surface region of the cylinder will be 301.44 square inches.

Let r be the radius and h be the altitude of the cylinder. Then the surface region of the cylinder will be given as,

SA = 2πrh + 2πr² square units

The radius of the cylinder is 4 inches and the height of the cylinder is 8 inches.

Then the surface area of the cylinder is calculated as,

SA = 2πrh + 2πr²

SA = 2 x 3.14 x 4 x 8 + 2 x 3.14 x 4²

SA = 200.96 + 100.48

SA = 301.44 square inches

The surface region of the cylinder will be 301.44 square inches.

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Answer:

  9x -4y = -44

Step-by-step explanation:

You want the equation of the line through (-4, 2) and perpendicular to the line through (-4, 6) and (5, 2).

The equation of a line through (h, k) and perpendicular to the line through (x1, y1) and (x2, y2) can be written as ...

  (x2 -x1)(x -h) +(y2 -y1)(y -k) = 0

Using the given points, this becomes ...

  (5 -(-4))(x -(-4)) +(2 -6)(y -2) = 0

  9(x +4) -4(y -2) = 0

Expanding this gives the general form equation:

  9x -4y +44 = 0

Subtracting the constant gives the standard form equation:

  9x -4y = -44

The statement that is correct regarding their solutions is A. Salina combined the x squared y terms correctly but then left the Plus x squared y term in her answer.

From the information, Salina and Nessa combined like terms using the same expression.

The expression given is illustrated as.

6x²y - 3 + x²y + 2xy² + 2xy - 6

It should be noted that the like terms are:

6x²y and x²y as well as -3 and -6.

Combine the like terms

6x²y + x²y = 7x²y

Also, -3 + (-6) = -9

Therefore, the value will be 7x²y + 2xy² + 2xy - 9

The correct option is A as it illustrated the mistake Salina made.

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Answer:

A is the answer

Step-by-step explanation:

Answer:

Step-by-step explanation:

This is an absolute value problem.

If we begin a tentative solution by subtracting 6 from both sides, we get

I 2x +5 I + 6 ≥ 4  =>   I 2x +5 I  ≥ -2

Note well that  I 2x +5 I has a value of 0 or greater; it cannot be negative.

Thus  I 2x +5 I  ≥ -2 has no solution.

Answer:

the first one

4(2x+1)

Step-by-step explanation:

3x+5x=8x

6-2=4

8x+4

Answer:600

Step-by-step explanation:2,976/4.96=600

Using Pythagorean's theorem we can see that the variables are:

t = 13.86

w = 12.81

Remember that for any right triangle, Pythagorean's theorem says that the sum of the squares of the legs is equal to the square of the hypotenuse, where the hypotenuse is the side opposite to the 90° angle.

Then for the first triangle we can write:

t² + 8² = 16²

Solving for t:

t = √(16² - 8²) = 13.86

For the second triangle we have:

10² + 8² = w²

Solving for w:

w = √(10² + 8²)

w = 12.81

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Answer:A function should pass the vertical line test.

Graph each of the functions to determine whether it passes the vertical line test.

Set #1  is a function

Set #2 is a function

Set #3 is not a function

Set #4 is not a function

Set #5 is not a function

Set #6 is not a function

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

ill explain it in the comments but trust me that is the answer

m    dm    cm    mm

                0        8

8 mm = 0,8 cm

Step-by-step explanation:

48 cm

Answer:

3,952 ft

Step-by-step explanation:

Use the sine function since you need to find the hypotenuse but know the opposite side of the angle, since sine is equal to opposite/hypotenuse.

sin8°=\(\frac{550}{c}\)

csin8°=550

c=550/sin8°

c= 3,952

Answer:

she has to pour 1/4 cup two times

Step-by-step explanation:

Step-by-step explanation:

yes, the step is correct.

a² = cx | multiply by c

ca² = c²x

I am just not sure how that simplified the equation.

what do you want to achieve ? what's the goal here ?

to solve the equation for x it would be to divide both sides by c, which gives

a²/c = x

Answer:

12 rabbits

Step-by-step explanation:

Take long word problems like these step-by-step:

The pet store has 96 pets. Since half are fish, there are 48 fish. If one eighth of the pets are hamsters, there are 12 hamsters

If an eighth of the pets are dogs then there are 12 dogs and if an eighth of the pets are cats then there are also 12 cats. Since the rest are rabbits, we can subtract the amount of non-rabbits from the total (96 pets). There are 48+12+12+12=84 non-rabbits, and therefore 96-84=12 rabbits.

Answer:

16m+1

Step-by-step explanation:

Knowing about our proprieties about parentheses and negatives, let's solve this out.

A negative multiplied by a negative give you a positive

therefore....

-(-16m-1)= 16m+1

The -1 also receives the negative because the problem was in a parentheses :)