What is the value of x in the equation 3x – one-ninthy = 18, when y = 27? 5 7 45 63

Answer/Step-by-step explanation:

Let's work out the subtraction of the polynomial to find out where the error is and the correct result we should have.

6x² - 4x - 5

- 3x² - 7x + 2

= [6x² - 3x²] [-4x -(-7x)] [-5 -(+2)]

= 3x² + 3x - 7

The error that was made in the subtraction given in the question was that the negative signs before the terms, 7x and 5 were ignored while subtracting.

The sign is very important, it defines the value of the term.

We can choose to solve the problem in another way shown below:

(6x² - 4x - 5) - (3x² - 7x + 2)

Distributive the negative sign in the second polynomial

6x² - 4x - 5 - 3x² + 7x - 2

Combine like terms

6x² - 3x² - 4x + 7x - 5 - 2

3x² + 3x - 7

Answer: 0.04

Step-by-step explanation:

Number of trips (n) = 40

Red = 30 seconds, Green = 30 seconds

P(red) = p(green) = 30/ (30+30) = 0.5

P(not red) = p(not green) = 1 - 0.5 = 0.5

P(x) = nCx * p^x * (1-p)^(n-x)

n = number of trials

x = number of outcome desired

P = probability of success of desired outcome

P(X > 25) = P(26) + p(27) + p(28) +.... + p(40)

Hence, to save computation time, we use the binomial distribution probability calculator :

P(X > 25) = 0.04

Answer:= (10+5^2)*((5*-2)+9-3^3)/2

= (10+25)*((5*-2)+9-3^3)/2

= (35)*((5*-2)+9-3^3)/2

= 35*((5*-2)+9-3^3)/2

= 35*((-10)+9-3^3)/2

= 35*(-10+9-3^3)/2

= 35*(-10+9-27)/2

= 35*(-1-27)/2

= 35*(-28)/2

= 35*-28/2

= -980/2

= -490

Step-by-step explanation:

Answer: -4t + 1590

Step-by-step explanation:

Given : Josh works as a tutor for $11 an hour and as a waiter for $15 an hour.

This month, he worked a combined total of 106 hours at his two jobs.

Let t be the number of hours Josh worked as a tutor this month.

Then, the number of hours Josh worked as a waiter = 106 -t

Then, the total money earned this month ( in dollars)

= 11 (No. of hours worked as a tutor)+ 15 (No. of hours worked as a waiter)

=11(t) + 15(106-t)

= 11t+1590-15t

= -4t+1590

Hence, the expression for the combined total dollar amount he earned this month =

The algebraic expression to this problem is 11x + 15y = 106

Algebraic expressions have variables, numbers, and operations. A variable is a letter that represents an unknown amount.

Let number of hours Josh worked as a tutor be x hour.

Let number of hours Josh worked as a waiter be y hours.

The equation becomes -

11x + 15y = 106

Learn more about algebraic expression here

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Answer:

Step-by-step explanation:

ohhh

Answer:

A B and E all fall on the line expressed.

Step-by-step explanation:

The quadrilaterals that have opposite angles equal are parallelograms, Rhombus, Rectangle, and Square. The correct options are C, D, E, and F.

Quadrilaterals are polygons with four sides, four vertices, and four angles.

The quadrilaterals that have opposite angles equal are parallelograms, Rhombus, Rectangle, and Square.

The opposite sides and opposite angles are equal in a parallelogram.

All sides are equal and opposite angles are equal in a Rhombus.

Opposite sides are parallel and equal, and all angles measure 90 degrees in a Rectangle.

All sides and angles are equal in a square.

Therefore, The correct options are C, D, E, and F.

To know more about Quadrilaterals

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Answer:

$4,160,000

Step-by-step explanation:

First, find the length of the new road in km using Pythagorean Theorem.

According to Pythagorean Theorem:

c² = a² + b²,

Where, c is the longest leg, which is the hypotenuse, a and b are the 2 other legs of the ∆.

Since we are calculating the lenght in km, convert each lenght of the two legs of the ∆ into km.

1 km = 1,000 m

10,000 m = 10 km

24,000 m = 24 km

c² = 24² + 10²

c² = 576 + 100

c² = 676

c = √676

c = 26 km

Lenght of the new road = 26 km

If cost of construction is $160,000 per kilometer, therefore, cost of constructing 26 km road = 160,000*26 = $4,160,000

The cost of  building the new road is $4,160,000.

here we determine the length by using the Pythagorean Theorem.

So,

[tex]c^2 = a^2 + b^2[/tex]

Here

c is the longest leg

And, a and b are the 2 other legs of the ∆.

Now

1 km = 1,000 m

10,000 m = 10 km

24,000 m = 24 km

So,

[tex]c^2 = 24^2 + 10^2[/tex]

c² = 576 + 100

c² = 676

c = √676

c = 26 km

Now the cost should be

= 160,000(26)

= $4,160,000

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Answer:

27

Step-by-step explanation:

9 + 9 + 9 = 27

I hope this helps :)

Answer:

trish has 27 because 9 times 3=27 love yall

Step-by-step explanation:

(No estoy seguro si este es el valor posicional más alto, pero estoy casi seguro). Cuando redondea estos números, obtiene 800 y 6,000. el producto de estos dos números es 4800000. ¡Espero que esto ayude! salud.

Answer:

y=-[tex]\frac{4k-11}{7}[/tex]

k=-[tex]\frac{7y}{4}[/tex]+[tex]\frac{11}{4}[/tex]

Answer:

A, C, and D

Could you please give me Brainliest?

Answer:

answers are a c d

Step-by-step explanation:

look at the lines that' how you find your answer

Answer:

3000

Step-by-step explanation:

Rounding to the nearest thousand implies not writing any significant figure after the digit located in the column of the thousand. In this case, what you have in that column is the number 3 (which is followed by a 1 in the column of the hundreds) so you need to round the number to 3000.

If the number that followed the 3 was 5 or larger, you would have rounded it to 4000.

Answer:

3,000

Step-by-step explanation:

The answer is 3,000 because:

1) The number in the hundreds place is 1, which is less than 5. Therefore, the number in the thousands place stays the same.

2) Whenever you are rounding with decimals, you have to leave the numbers after the decimal point.

Hope this helps!

Answer:

x=28.7

Step-by-step explanation:

I just answered the question.

Answer:

Step-by-step explanation:

Given the sequence :

23, 19, 13, 5, -5.......

From the sequence, the common difference is unequal, as their is a constant Increment in the difference after successive numbers.

19 - 23 = -4

13 - 19 = -6

5 - 13 = -8

-5 - 5= -10

Hence an constant difference of - 2 after each successive difference.

Hence, this is a quadratic sequence

With the formula

an² + bn + c

Answer:

Government A earns 54 675 US$, Government B earns 230 020 US$

Step-by-step explanation:

Answer:

3 degrees in 1 hour

Step-by-step explanation:

.75 degrees

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

1/4 hours

Multiply the top and bottom by 4

.75 degrees *4

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

1/4 hours*4

3 degrees

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

1 hour

Answer:

thanks

Step-by-step explanation:

:) hahahahahah

Answer:

881465966

Step-by-step explanation:

Answer:

y = x/w

Step-by-step explanation:

1) We have to isolate y

2) An easy way to do this is to switch the places of y and w since we are just solving for y

3) Therefore, the answer is y = x/w

Hope this helps!

Answer:

C

Step-by-step explanation:

The slope-point formula is  y-y₁=m(x-x₁). So if you plug in your information you get C.

Answer:

Sorry didnt realize it didnt post

2.) 1.16 x 10^-1

4.) 9.006 x 10^-9

6.) 3.68 x 10^3

8.) 6.92810457 × 10^-3

Step-by-step explanation:

Answer:

  7k

Step-by-step explanation:

  −k−(−8k) = -k +8k = 7k

Answer:

  (x, y) = (0, 3)

Step-by-step explanation:

(x, y) = (0, 3) is in both tables. Hence, that point is a solution to the system of equations.

Answer:

Variable

x which stands for no. of toppings on pizza

equation

7 + 1.5x = 11.50

solution

the no. of toppings = 3

Step-by-step explanation:

Let the number of topping be x.

Cost of 1 topping = $1.50

Cost of x topping = x*Cost of 1 topping = $1.5*x = $1.5x

Cost of cheese pizza = $7.00

Total cost for cheese pizza for x topping = Cost of cheese pizza + Cost of x topping

Total cost for cheese pizza for x topping = 7 + 1.5x

Given that The total charge for Megan's pizza was $11.50

thus,

7 + 1.5x = 11.50

1.5x = 11.50 - 7

1.5x = 4.5

x = 4.5/1.5 = 3

Thus, there were three toppings

______________________________________

Variable

x which stands for no. of toppings on pizza

equation

7 + 1.5x = 11.50

solution

the no. of toppings = 3

Answer:

y = 4

RS = 35

ST = 26

Step-by-step explanation:

Given:

RS = 8y + 3

ST = 5y + 6

RT = 61

Required:

a. Value of y

b. Numerical lenght of RS and ST

SOLUTION:

a. Points R, S and T are collinear, therefore, based on segment addition postulate, the following equation can be created to find the value of y:

[tex] RS + ST = RT [/tex]

[tex] (8y + 3) + (5y + 6) = 61 [/tex] (substitution)

Solve for y

[tex] 8y + 3 + 5y + 6 = 61 [/tex]

Combine like terms

[tex] 8y + 5y + 3 + 6 = 61 [/tex]

[tex] 13y + 9 = 61 [/tex]

Subtract 9 from both sides

[tex] 13y + 9 - 9 = 61 - 9 [/tex]

[tex] 13y = 52 [/tex]

Divide both sides by 13

[tex] \frac{13y}{13} = \frac{52}{13} [/tex]

[tex] y = 4 [/tex]

b. RS = 8y + 3

Plug in the value of y

RS = 8(4) + 3 = 32 + 3

RS = 35

ST = 5y + 6

Plug in the value of y

ST = 5(4) + 6 = 20 + 6

ST = 26

Answer:

Guy above me is Wrong its 14

Step-by-step explanation: