for the school play, 40 rows of chairs are set up. there are 22 chairs in each row. how many chairs are there in all?

The answer is C.37.41

Let us assume Brian's one item cost = $ x.

Chris one item cost is $2.50 more than Brian’s items each cost.

Therefore, Chris one item cost is = $(x+2.50).

Total cost of Brian's 4 items = 4*x = 4x.

Total cost of Chris's 3 itmes = 3*(x+2.50) =3(x+2.50)

It is said that Brian and Chris both paid the same amount of money.

Therefore,

Total cost of Brian's 4 items = Total cost of Chris's 3 itmes.

a) We can setup an equation now,

b) Let us solve above equation for x.

4x = 3(x+2.50)

distributing 3 over (x+2.50), we get

4x = 3x + 7.50.

Subtracting 3x from both sides we get

4x-3x = 3x-3x =7.50.

Therefore, the cost of one of Brian's items = $7.50.

Chris one item cost is $2.50 more than Brian’s items each cost.

Chris one item cost is = 7.50 +2.50 = $10.00.

c) Plugging x=7.50 in the equation we get to check the solution.

4x = 3(x+2.50)

4(7.50) = 3(7.50+2.50).

30 = 3(10.00)

30=30.

Therefore, solution x=7.50 is correct.

Answer:

Brians is $7.50 and chris is $10.00!

I'm sorry I don't have the math but I submitted the assignment and got a 100!

$1.99/12

hope this helps

Remember to follow the FOIL method.

Note that: FOIL = First, Outside, Inside, Last.

Multiply

First: (3x)(x) = 3x²

Outside: (3x)(-7) = -21x

Inside: (2)(x) = 2x

Last: (2)(-7) = -14

-------------------------------------------------------------------------------------------------------------

3x² -21x + 2x -14

Combine like terms

3x² (-21x + 2x) - 14

3x² - 19x - 14

3x² - 19x - 14 is your answer

~Rise Above the Ordinary

It's B)

Sorry... I was late

Answer:

-7m - 8 = m - 4

Step-by-step explanation:

Our original equation is

-2m - 5m - 8 = 3 + (-7) + m

Combining like terms on the left, we have

-7m - 8 = 3 + (-7) + m

Combining like terms on the right, we have

-7m - 8 = -4 + m

Writing the equation with the variable first on the right hand side, we have

-7m - 8 = m - 4

In order to get your answer add 8.1 + 4.9 = 13. Then to double check subtract 13 by 8.1 which equals 4.9. Hope this helps!

to solve  for the dimensions (x+7)(x+2)=66,

we can first use the foiling method to simplify the left side.

x^2 + 2x + 7x + 14 = 66

x^2 + 9x + 14 = 66

now, subtract 66 from both sides.

x^2 + 9x - 52 = 0

now, split this into two parentheses.

(x + 13)(x - 4)

since the root of -13 would give you negative values, x=4. This means that the dimensions of the rectangle are 11 and 6.

The dimensions of the rectangle is 11 by 6 inches

The dimensions are given as:

x + 7 and x + 2

The area is given as:

Area = 66

The area of a rectangle is:

Area = Length * Width

So, we have:

(x + 7) * (x + 2) = 66

Express 66 as 11 * 6

(x + 7) * (x + 2) = 11 * 6

By comparison, we have:

x + 7 = 11 and x + 2 = 6

Solve for x

x = 4 and x = 4

Substitute 4 for x in x + 7 and x + 2

x + 7 = 4 + 7 = 11

x + 2 = 4 + 2 = 6

Hence, the dimensions of the rectangle is 11 by 6 inches

Read more about areas at:

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Solution: The numerical expression is [tex]8\times (9+11.3)[/tex] and the value of this expression is 162.4.

Explanation:

The sum of 9 and 11.3 is written as [tex](9+11.3)[/tex].

The product of 8 means the expression should multiply by 8.

According to the given information the the product of 8 and the sum of 9 and 11.3 is written as [tex]8\times (9+11.3)[/tex].

To evaluate the value of the expression first we have to add 9 and 11.3 after that multiply the result by 8.

[tex]8\times (9+11.3)=8\times (20.3)\\8\times (9+11.3)=162.4[/tex]

Therefore, the numerical expression is [tex]8\times (9+11.3)[/tex] and the value of this expression is 162.4.

Answer:

162.4

Step-by-step explanation:

To write the numerical expression for the product of 8 and the sum of 9 and 11.3 we need to follow these steps:

Sum of 9 and 11.3 is given as follows:

[tex](9+11.3)[/tex]

Now the product of 8 and the sum of 9 and 11.3 is:

[tex]8(9+11.3)[/tex]

So the required expression is:

[tex]8(9+11.3)[/tex]

Solving the above expression we get:

[tex]8(9+11.3)=8(20.3)=8 \times 20.3=162.4[/tex]

Answer:

7 days

Step-by-step explanation:

First let's start with the wheat. If you know that there is 75 acres of wheat, and you can harvest 12 acres in one day, all you have to do is 75 divided by 12.

This would get you at 6.25, but a whole day would be 7.

Corn, you know that there is 62.5 acres. Same thing, you do 62.5/10, and will get you around 7 again.

Hey there!

25% of 1,000

= 25% * 1,000

= 25/100 * 1,000/1

= 25 ÷ 5 / 100 ÷ 5 * 1,000/1

= 5 / 20 * 1,000/1

= 5 ÷ 5 / 20 ÷ 5 * 1,000/1

= 1 / 4 * 1,000 / 1

= 1/4 * 1,000/1

= 1(1,000) / 4(1)

= 1,000 / 4

= 1,000 ÷ 4

= 250

Therefore, your answer should be: 250

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

C.

Combine like terms when adding f(x) and g(x) 2x^2 + x^2 and 1 + (-7) = 3x^2 - 6

p^2+6p+9=0

The discriminant of a quadratic is the expression inside the radical of the quadratic formula.

b^2−4(ac)

Substitute in the values of

a, b, and c.

6^2−4(1⋅9)

Evaluate the result to find the discriminant.

36-4(9)

36-36

0

The discriminant of the quadratic equation p²+6p+9=0 is zero, suggesting that it has exactly one real, repeated solution.

The discriminant of the quadratic equation p²+6p+9=0 is calculated using the formula D=b²-4ac, where a, b, and c are the coefficients of the quadratic equation ax²+bx+c=0. In this equation, a=1, b=6, and c=9. Substituting these values into the discriminant formula gives us:

D = b² - 4ac

D = (6)² - 4(1)(9)

D = 36 - 36

D = 0

The discriminant is zero, which indicates that the quadratic equation has one real, repeated solution, meaning the parabola touches the x-axis at a single point.

We can round 29 up to 30, and 309 up to 310. This gives us a rough estimate of about  9,300.

Isolate the p. Note the equal sign. What you do to one side, you do to the other. Multiply 7/6 to both sides

(-2)(7/6) = (6/7)(7/6)p

p = (-2)(7/6)

Multiply -2 and 7, then divide by 6

p = (-2 x 7)/6

p = -14/6

Divide

p = ~-2.33 (rounded)

-2.33 is your answer

hope this helps

Hello there!

[tex]-2=6/7p\\[/tex]

Explanation:

↓↓↓↓↓↓↓↓↓↓

First you had to switch sides.

[tex]\frac{6}{7}p=-2[/tex]

Then you multiply by 7 from both sides of the equation.

[tex]7*\frac{6}{7}p=7(-2)[/tex]

Simplify

[tex]6p=-14[/tex]

Divide by 6 from both sides of the equation.

[tex]\frac{6p}{6}=\frac{-14}{6}[/tex]

Simplify it should be the correct answer.

[tex]p=-\frac{7}{3}[/tex]

Answer⇒⇒⇒⇒⇒p=-7/3

Hope this helps!

Thank you for posting your question at here on Brainly.

Have a great day!

-Charlie

Ugh, I hate FLVS. I'm not exactly sure, but i know that 2 to the 12 power is 24, and 2 to the fourth power is 8. Sorry I'm not being very helpful.

greater is Mary, lesser is tom

Answer: Option D. x>=3   or   x<=-5

Solution:

3x+4>=13 or 2x-1<=-11

3x+4-4>=13-4   or   2x-1+1<=-11+1

3x>=9   or   2x<=-10

3x/3>=9/3   or   2x/2<=-10/2

x>=3   or   x<=-5

Answer:

D

Step-by-step explanation:

A P E X

Answer: x = -2

Step-by-step explanation:

vertical line means it will be x = ___

Set the x-values equal to each other and solve for x.

3 - 2x = x + 9

   +2x +2x    

3        = 3x + 9

-9                -9

-6       =3x

    [tex]\frac{-6}{3} = \frac{3x}{3}[/tex]

     -2 = x

The line passing through the points F(3−2x, 12) and G(x+9, 7) will be vertical if x = -2

For two points (X₁, Y₁) and (X₂, Y₂) to form a vertical line, the x-coordinates must be equal

The given points are F(3-2x, 12) and G(x+9, 7)

X₁ = 3 - 2x

X₂ = x + 9

For the points to form a vertical line:

X₁  =  X₂

3  -  2x    =  x   +  9

Collect like terms

x  +  2x   =  3   -  9

3x    =   -6

Divide both sides by 3

3x / 3  =  -6/3

x    =   -2

The line passing through the points F(3−2x, 12) and G(x+9, 7) will be vertical if x = -2

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10x0.25=2.50-4.90=2.40/.010= 24

24 dimes

Answer:

D)0.25 • 10 + 0.1 • d = 4.90

Step-by-step explanation:

To determine the number of 5-inch pieces of ribbon that can be obtained from a 65-inch ribbon, divide the total length by the length of each piece. So, 13 students can each get a 5-inch piece of ribbon from the 65-inch ribbon.

To determine how many 5-inch pieces of ribbon can be obtained from 65 inches of ribbon, we divide the total length of the ribbon by the length of each piece. So, we divide 65 by 5:

Therefore, 13 students can each get a 5-inch piece of ribbon from the 65-inch ribbon.

https://brainly.com/question/7456580

#SPJ2

In a polygon with n sides, the sum of the measures of the interior angles, S, is

[tex] S = (n - 2)180 [/tex]

In a regular polygon with n sides, the measure of each interior angle, a, is the sum of the measures of the interior angles divided by the number of sides, or

[tex] a = \dfrac{(n - 2)180}{n} [/tex]

In this case, we know the measure of one angle, a = 157.5°, so we plug it into the second formula and solve for n.

[tex] a = \dfrac{(n - 2)180}{n} [/tex]

[tex] 157.5 = \dfrac{(n - 2)180}{n} [/tex]

[tex] 157.5n = (n - 2)180 [/tex]

[tex] 157.5n = 180n - 360 [/tex]

[tex] -22.5n = -360 [/tex]

[tex] n = 16 [/tex]

Answer: The polygon has 16 sides.

In order to find the number of sides for a regular polygon with an interior angle of 157.5°, we use the formula n = 360 / (180 - 157.5), which gives us n = 16. Hence, the polygon has 16 sides.

In mathematics, the number of sides of a regular polygon can be found if the measure of an interior angle is known. Given that the interior angle is 157.5° we use the formula for calculating the measure of an interior angle in a regular polygon:

n = 360 / (180 - 157.5)

Where 'n' represents the number of sides in the polygon. Substituting 157.5 into the formula, the calculation becomes n = 360 / 22.5. By performing the calculation, we find that n = 16. Therefore, the regular polygon with an interior angle of 157.5° has 16 sides.

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#SPJ3

Hi, here is the solution...

Part B)

The Navy Pier Ferris has the circumference is 56% of the circumference of the first Ferris wheel.

The Navy Pier Ferris Circumference = 439.6 feet

Let's assume "x" be circumference of first Ferris wheel.

56% of x = 439.6

0.56 x = 439. 6     [56% = 0.56]

x = 439.6/0.56

x = 785.

Therefore, the circumference of the first Ferris wheel is  785.

It is diameter = 785/3.14 = 250 feet

So it is radius = 250/2 = 125 feet.

Part C)

The circumference = 785 feet

Speed = Distance/Time

Speed = 785/9

Speed = 87.2 feet per minute.

That's it. Hope you will understand the steps.

Thank you. :)

$78

$65x.20=13

65+13=$78

I believe that the equations answer is around 1170. The answer to the equation is 1172

Answer:

1172

Step-by-step explanation:

5:00 practice - 20 minute walk - 60 minutes in science lab - 10 minutes to get ready for the lab.

5:00 - 90 minutes

3:30 for class end time

The correct answer is [tex]y=3x-8[/tex] as shown by the green line on the graph attached to this answer.

Max cost of 15 bats = 15 x 35 = $535

Min cost of 15 bats = 15 x 20 = $300

Max cost of 12 gloves = 12 x 60 = $720

Mix cost of 12 gloves = 12 x 30 = $360

Min total cost = 360 + 300 = $660

Max total cost = 535 + 720 = $1255

The range is from  $660 to $1255

=============> Answer (A) is out of the range