I need help plz i'm confused!!!
i'll give brainiest to the right answer

Answer:

it is B

3x=x+40

2x=40

x= 20

Answer:

The answer is 20

Step-by-step explanation:

x+40=3x

-x        -x

40=2x

40/2=2/2

20=x

flip it and you get

x=20

Answer:

S = x+y+9

Step-by-step explanation:

Age of Anna is x years and age of her sister is y years old.

3 years later,

Age of Anna = x+3

Age of her sister = y +3

Sum of their ages in 3 years will be :

S = x+3+y+3

S = x+y+9

Hence, this is the required solution.

Question:

The area, a, of an ellipse can be determined using the formula a = πxy, where x and y are half the lengths of the largest and smallest diameters of the ellipse. Which is an equivalent equation solved for y?

Answer:

[tex]y = \frac{a}{\pi x}[/tex]

Step-by-step explanation:

Given

[tex]a = \pi xy[/tex]

Required

Solve for y

The question implies that, we make y the subject of formula:

This is done as follows:

[tex]a = \pi xy[/tex]

Divide through by [tex]\pi x[/tex]

[tex]\frac{a}{\pi x} = \frac{\pi xy}{\pi x}[/tex]

Isolate y on the right hand side

[tex]\frac{a}{\pi x} = y[/tex]

Reorder

[tex]y = \frac{a}{\pi x}[/tex]

Hence, the solution to the question is: [tex]y = \frac{a}{\pi x}[/tex]

Answer:

y=1/3x-1/3

Step-by-step explanation:

Answer:

8 to 1

Step-by-step explanation:

Answer:

8:1

Step-by-step explanation:

32:4

divid both sides by 4

8:1

Answer: A

Step-by-step explanation:

Answer:

Answer is A

Step-by-step explanation:

This is a example of Frictional unemployment

Answer:

5.83

Step-by-step explanation:

i used pythagorean theorem

side a is 5 because congruence

side b would be 3 because 9 - 6 = 3

5^2 + 3^2 = c^2

25 + 9 = c^2

34 = c^2

sqrt of 34 is 5.83

Answer:

Linear bc the equation of this scenario is y=4x+20  

Step-by-step explanation:

Answer: D. Chloe did not cut enough fabric because she only cut the amount of extra fabric.

Step-by-step explanation:

From the question, we are informed that a direction on a sewing pattern say to cut an extra 15% of fabric to account for error and that Chloe needs 0.75 yard of fabric to make a skirt.

Based on the information given in the question, the extra fabric will be:

= 15% × 0.75

= 15/100 × 0.75

= 0.15 × 0.75

= 0.1125

Therefore, the correct amount of fabric to cut will then be the amount of yard needed for the skirt plus the extra. This will be:

= 0.75 + 0.1125

= 0.8625 yards

Based on the above calculation, Chloe did not cut the correct amount of fabric as she only cut the amount of extra fabric.

Answer:

No

Step-by-step explanation:

There is no pattern hence it will not form a straight line

There will be no straight line as there is no consistency in proportionality constant.

The ratio connecting two given numbers in what is known as a proportional relationship is the constant of proportionality. Constant ratio, constant rate, unit rate, constant of variation, and even rate of change are other names for the constant of proportionality.

The relationship can be described as y = k x or y = k/x

As, from constant of proportionality

y = k x

k= y/x

k= 53/(-2)= -53/2 = -26.5

and, k= -22/1 = -22

and, k = -47/2 = -2.35

As, there no consistency in proportionality constant.

Hence, the table does not form straight line.

Learn more about constant of proportionality here:

https://brainly.com/question/22620356

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Answer:

6x^3-16x^2-14x+24 Soo probably b?

Answer:

The answer is x=4 or x=−10

Solutions:

(x + 3)² = 49

(x+3)(x+3)=49

x²+6x+9=49

x²+6x+9-49=0

(x-4)(x+10)

x-4=0 x+10=0

x=4 x=-10

Answer:

Step-by-step explanation:

30 cm:

1: 14

so 1*14 = 14

so 30*14=420

so if you are trying to figure out how long it is in real life it's supposed to be 420 something.

The length of the car in real life is 420 cm or 4.2 meters.

Multiplication is a method of finding the product of two or more numbers

If the scale of the drawing is 1:14, this means that every 1 unit on the drawing represents 14 units in real life.

Since the car in the drawing is 30cm long, we can use this to figure out its length in real life units. Let's call the real life length of the car "x".

Using the scale, we can set up the following proportion:

1 / 14 = 30 / x

To solve for x, we can cross-multiply

x = 14 × 30

x = 420

Therefore, the length of the car in real life is 420 cm or 4.2 meters.

To learn more on Multiplication click:

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Answer:38.41%

explanation:........

Answer: I can’t see the pic

Step-by-step explanation:

Answer:

the correct answer would be p=nRt/v

Step-by-step explanation:

you would devide both sides by v to get the new equation

Answer:

        [tex]y=\frac{1}{2}x+5[/tex]

Step-by-step explanation:

Considering the line graph

Some of the points on the line are given by

Finding the slop between any two given points

Let us take the point (0, 5) and (2, 6)

[tex]\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\left(x_1,\:y_1\right)=\left(0,\:5\right),\:\left(x_2,\:y_2\right)=\left(2,\:6\right)[/tex]

[tex]m=\frac{6-5}{2-0}[/tex]

To the  y-intercept, set x = 0.

We already know that when x = 0, the value of y = 5

so

Equation of line can be obtained using the point-slope form of the line equation

[tex]y-y_1=m\left(x-x_1\right)[/tex]

substituting the values m = 1/2 and any point let say (2, 6)

[tex]y-6=\frac{1}{2}\left(x-2\right)[/tex]

add 6 to both sides

[tex]y-6+6=\frac{1}{2}\left(x-2\right)+6[/tex]

[tex]y=\frac{1}{2}x+5[/tex]

Therefore, the equation of the line is:

Answer:

d

Step-by-step explanation:

Answer:

it equals 45

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

goodluck!

Answer:

its the last one y=1/2 x - 4

Answer:

the answer would be 211

Step-by-step explanation:

you simply add the length and width together to find perimeter. since you have the total perimeter and the length you would instead subtract the two.

292-81= 211

Answer:

68m

Step-by-step explanation:

The perimeter  of a rectangle with length  and width  is given by the following.

P=21+2w

We need to find w when P=292 m  and l+78m .

Using these values in the equation above, we'll solve for w.

P=21+2w

292=2(78)+2w

292=156+2w

136=2w

68=w

Subtracting 156  from both sides

Dividing both sides by  2

So the width of the parking lot is 68m

Answer:

(6, 1)

Step-by-step explanation:

We are given the equation for (y), [y=x-5]

So we can implement that in all the places the (y) are in the other equation.

x+3(x-5)=9

x+3x-15=9

add 15 to each side

4x=24

Divide each side by 4

x=6

Now we can apply our (x) into one of the equations.

y=(6)-5

y=1

So our solution is (6, 1)

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

Answer:

A quotient is a result when two numbers are divided

A difference is a result of two numbers being subtracted

A Product is the result of two numbers being multiplied

Step-by-step explanation:

56 divided by 7

8 minus 6

5 times 4

9514 1404 393

Answer:

  no

Step-by-step explanation:

A proportion is an equation saying two ratios are equal to each other.

One ratio is not a proportion.

___

It would be a proportion if it were said to equal something:

  2/7 = peanuts/popcorn . . . is a proportional expression

Answer:

−260000000x

Step-by-step explanation:

multiply both and then subtract them

Answer:

50.6

-I hope this helps have a great day!

Answer:

10 pencils

Step-by-step explanation:

Given that:

Number of pencils bought by Sam and Sara are the same.

Let the number of pencils bought = x

Sam put 1/4 in his pencil box

Sara put 1/2 in her pencil box

1/4 of Sam's pencil = 5

That is ;

1/4 of x = 5

x /4 = 5

x = 20

Hence, number of pencils Sara put in her box

:

1/2 of 20

1/2 * 20

20/2

= 10

10 pencils

Answer:

3 Remainder

Step-by-step explanation:

Answer:

23 remainder 3

Step-by-step explanation: