What is the value for x?

Btw plis add the explanation I would love to know the process of getting the answer for future references :) thx!

Answer:48.6

we know that

You can paint 75 square feet of a surface every 45 minutes

so

using proportion  

Find out how long it takes you to paint a surface area of 81 square feet

45(81)/75=48.6

hope this helped and I hope you get a correct answer :D

Answer:

48.6 minutes

Step-by-step explanation:

First we must identify the area of the given wall :

A = L * W

A = 9 * 9

81 = 9 * 9

[tex]81ft^2[/tex]

Now we know that we can paint 75 square feet every 45 minutes so we must use proportion to find out how long it'll take you.

[tex]\frac{75}{45} *\frac{ft^2}{min}[/tex]

=

[tex]\frac{81}{x}[/tex] [tex]\frac{ft^2}{min}[/tex]

x = 45(81) / 75

x = 3645 / 75

x = 48.6 minutes

Answer:

17.738

Step-by-step explanation:

to find x we’ll use sine

sin69=x/19

(remember that sine = opposite/hypotenuse)

so x = 19sin69

when typing this in your calculator you might need to change from radian to degree mode

Answer:

1. 27

2. 1 and 2 = 17

3. 55

4. 55

5. 70

6. 125

7. 55

8. 95

9. 140

10. 40

11. 65

12. 75

13. 115

14. 27

15. 27

Step-by-step explanation:

Answer:

5 like terms

4, -10, and 12 are like terms

3x and -1/2x are like terms

Answer:

-100$

Step-by-step explanation:

Adding a negitive number to a positive number is basically subtracting it, and since 600-100 is 500 that means 600 + -100 is also 500.

Answer:

1.5

Step-by-step explanation:

3÷2= 1.5

6÷4=1.5

12÷8= 1.5

hi

11x+15=10x+20

11x-10x= 20-15

    x= 5

Is this for a test or something?

Answer:

5/8

Step-by-step explanation:

They ate 6/16 which the left is 10/16 is 5/8

Answer:

a = - 1

Step-by-step explanation:

Step 1:

6a + 5a = - 11        Equation

Step 2:

11a = - 11         Combine Like Terms

Step 3:

a = - 11 ÷ 11       Divide

Answer:

a = - 1

Hope This Helps :)

The solution to the equation 6a + 5a = -11 is a = -1.

We have,

To solve the equation 6a + 5a = -11, we can combine the like terms on the left side of the equation and then isolate the variable a.

Step 1: Combine like terms

On the left side, we have 6a + 5a, which gives us 11a. The equation becomes:

11a = -11

Step 2: Isolate the variable

To isolate variable a, we divide both sides of the equation by 11:

(11a) / 11 = (-11) / 11

a = -1

Therefore,

The solution to the equation 6a + 5a = -11 is a = -1.

Learn more about expressions here:

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Answer:

the answer would be option C. I just took the quiz

Step-by-step explanation:

i took the test!!!!!

Answer:

B

Step-by-step explanation:

6 x 2.11 = 12.66

The value of a 1-pint serving of shelter will be 12.66 liters. The correct option is b.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also represent the logical syntax's operation order and other properties.

Given that Bob is having a cookout. He bought 6 litres of seltzer water. The quantity of water for 1 point of serving is,

Quantity = 6 x 2.11

Quantity = 12.66

The quantity will be equal to 12.66 pints.

To know more about an expression follow

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Answer:

-7b - 9k + 6

General Formulas and Concepts:

Alg I

Step-by-step explanation:

Step 1: Define expression

-4b + (-9k) - 6 - 3b + 12

Step 2: Simplify

Answer:

21

Step-by-step explanation:

[tex]\frac{x}{14} =\frac{3}{2} \\x=\frac{3}{2} \times 14=21[/tex]

Answer:21 cars to 14 trucks

Step-by-step explanation:

Answer:

A. tan A = sin A / sin C

Step-by-step explanation:

Answer:

tan A = sin A / sin C

Step-by-step explanation:

Answer:

?

Step-by-step explanation:

Answer:

The second flare travels higher, 256 feet, and remains in the air longer, 8 seconds, than the first flare

Step-by-step explanation:

The given parameters are;

The height of the first flare = 196 feet

The duration the first flare spends in the air = 7 seconds

The function representing the height of the second flair is f(t) = -16t(t - 8)

Where;

t = The time since the passenger shot the second flare

The time the flair stays i the air is given by the time it takes for the height, f(t),  to be 0 as follows;

f(t) = 0 = -16t(t - 8)

-16t(t - 8) = 0

t = 0, or t = 8

The time the second flare stays in the air = 8 seconds

The maximum height reached by the second flair is given by the finding the maximum point of the curve of the function as follows;

d(f(t))/dt = 0 = d(-16t(t - 8))/dt = -32t + 128 at the maximum point (the coefficient of t² is negative in the quadratic equation)

-32t + 128 = 0

128 = 32t

32t = 128

t = 128/32 = 4

t = 4 at maximum height and f(4) = -16 × 4 × (4 - 8) = 256 feet

The maximum height reached by the second flare f(4) = -16 × 4 × (4 - 8) = 256 feet.

Therefore, the second flare travels higher, 256 feet, and remains in the air longer, 8 seconds, than the first flare, with maximum height of 196 feet, and time in the air of 7 seconds.

Answer:

The slope is: -4/3

Step-by-step explanation:

Answer:

17,5

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Given

x² + 3x - 5 - (4x² + 3x - 6) ← distribute parenthesis by - 1

= x² + 3x - 5 - 4x² - 3x + 6 ← collect like terms

= - 3x² + 1 → B

Answer:

A. 79

B. 123

C. 63

D. 145

Step-by-step explanation:

A. 156 & 235

235 - 156 = 79

Distance is 79

B. -40 & 83

|-40| = 40 + 83

= 123

Distance is 123

C. -62 & -145

|-125| - |-62|

= 125 - 62

= 63

Distance is 63

D. 56 & -89

|-89| = 89 + 56

= 145

Distance is 145

Answer:

A. 79

B. 123

C. 63

D. 145

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

6/3 = 2

Answer:

The midpoint would be (-3, 1)

Step-by-step explanation:

since the formula for midpoint is [tex](\frac{x^{1} +x^{2} }{2}, \frac{y^{1} +y^{2} }{2} )[/tex], you would just have to plug in the coordinates given on the graph. I think your points are (-1, 4) and (-5, -2).

[tex](\frac{-1 -5}{2}, \frac{4-2}{2} )[/tex]

[tex](\frac{-6}{2}, \frac{2}{2} )[/tex]

If you simplify, then you should get (-3, 1)!

Answer:

504

Step-by-step explanation:

I hope this helps you out!

Answer:

Dennis walked faster by 0.75 miles/hr

Step-by-step explanation:

a)Selina's speed

speed= distance

                 time

          = 2.5 miles       =  3.75 miles/hr = the slower

               2/3 hrs

b) Dennis' speed

speed =  distance

                  time

           =  6.75 miles        = 4.5 miles/hr  = the faster    

                   1.5 hrs

difference in speed:

faster - slower

4.5 - 3.75

=0.75 miles/hr

Dennis walked 0.75 miles per hour faster than Selina's speed.

Average speed is defined as the ratio of the total distance traveled by a body to the total time taken for the body to reach its destination.

To determine Selina's speed

speed = distance/time

speed = 2.5 miles/(2/3) hour

speed = 3.75 miles/hour

To determine Dennis' speed

speed = distance/time

speed = 6.75 miles/(1.5) hour

speed = 4.5 miles/hour

Here Dennis' speed is greater than Selina's speed which means Dennis walked faster.

So the difference in speed = Dennis' speed - Selina's speed

The difference in speed = 4.5 miles/hour - 3.75 miles/hour

The difference in speed = 0.75 miles/hr

Thus, Dennis walked 0.75 miles per hour faster than Selina's speed.

Learn more about the average speed here :

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Answer:

I believe it would be the first option

Answer:

B

Step-by-step explanation:

A is Standard Intercept Form

B is Point Slope Form

The rest are used for other problems I'm unsure of

Answer: Yes. There's a proportional relationship

Step-by-step explanation:

We are told that Anthony and Miguel go to the store to purchase some new DVDs and that an advertisement in the window catches their attention as they saw that:

3 DVDs cost $22,50. This means the price of one will be:

= $22.50 / 3

= $7.50

5 DVDs cost $37.50. This means that the price for one will be:

= $37.50 / 5

= $7.50

Since the price of a DVD both cost $7.50, it means that the information on the sign represent a proportional relationship.