Solve the system of equations by substitution. Show all work neatly on your work page. Checking your answer is wise. :) Plz need
3x + 2y = 7

y = -3x +11

Answer:

Aren't you just suppose to multiple the 24 and 20 to get 480

Answer:

480

Step-by-step explanation:

it gives you the second step

24x20

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it would be very much appreciated

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Answer:

I think it is the first option.

Step-by-step explanation:

I don't really know, I just hope this helps

I am so sorry if I am wrong.

Gotcha, bro.

(I don't know what pi is, so I'm gonna assume that it is 3.14)

C=pi x diameter

First, multiply the radius by 2 so you have the diameter.

3x2=6

Second, multiply 3.14 (pi) by 6 (diameter)

3.14x6=18.84

Therefore, the circumference is 18.84.

(19 if you round it to the whole number)

Hope this helps!

(btw if pi is something else, use these steps to help you out)

The circumference of the circle is 6π meters.

A circle is a two dimensional figure with a radius and circumference of 2πr.

We have,

The circumference of a circle is given by the formula:

C = 2πr

where r is the circle's radius and π (pi) is a mathematical constant approximately equal to 3.14.

In this case, the radius of the circle is 3 meters.

Substituting this value in the formula, we get:

C = 2πr

C = 2π(3)

C = 6π

Therefore,

The circumference of the circle is 6π meters.

Learn more about Circle here:

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Answer:

A. Three inches

Step-by-step explanation:

Exact amount is: 2.84765625

Answer:

A: Not proportional

B: Proportional

Step-by-step explanation:

A: 14/4 = 3.5

40/12 = 0.3333333333333

Therefore A is not proportional

B: 3/9 = 0.3333333333333

15/45 = 0.3333333333333

Therefore B is proportional

Hope this helped and pls give brainliest.

Answer:

The answer is 60

Step-by-step explanation:

m∠CAB = 180° − 90° − 30° = 60°

Step-by-step explanation:

there you go :)

6

Answer:

(a)Yellow=10

Green=38

Relative Frequency of Blue =0.32

Relative Frequency of Red =0.2

Relative Frequency of Green =0.38

(b)50 Red balls

Step-by-step explanation:

In 100 trials, the following were recorded.

Frequency of Blue Balls = 32

Frequency of Red Balls = 20

Relative Frequency of Yellow Balls =0.1

Now, Relative Frequency =Number of Outcome of an Event ÷ Total Number of Trials in the Experiment

Total Number of Trials =100

Therefore:

Therefore, Number of Outcomes of Green balls=100-(32+20+10)

=100-62

Number of Outcomes of Green balls=38

(b)If the Number of Trials is Increased to 250

Expected Outcome of Red Balls =Relative Frequency of Red Balls X 250

She should expect 50 red balls.

Answer:

y = -1/5x + 6

Step-by-step explanation:

y=mx+b

hope this helps :)

Answer:

1.Elisa accidentally put in 3 extra cups of water

2.C+3=6

Answer:

7 boxes :)

Step-by-step explanation:

can i get brainliest please???

it would be very much appreciated

have a nice day :)

9514 1404 393

Answer:

  log(35)/log(7)

Step-by-step explanation:

The change of base formula is ...

  [tex]\log_b(a)=\dfrac{\log(a)}{\log(b)}[/tex]

You have b=7, a=35, so the rewrite is ...

  [tex]\log_7(35)=\boxed{\dfrac{\log(35)}{\log(7)}}[/tex]

9514 1404 393

Answer:

  x = 7

Step-by-step explanation:

The angle bisector divides the sides proportionally.

  (3x -12)/6 = 21/14

  3x -12 = 9 . . . . . . . multiply by 6 and simplify

  x -4 = 3 . . . . . . . .  divide by 3

  x = 7 . . . . . . . . . . . add 4

Answer:

The answer to this problem is 6.

Step-by-step explanation:

Answer:

Yes, I think it is

because the equation has a horizontal line

The point (-3,1) is not passing through the graph y = -2x + 7 so option (C) will be correct.

A graph is a diagram that shows the fluctuation of one variable in relation to one or more other variables.

In order to plot the graph, we need to find out y's values corresponding to x's value

After that, we need to substitute the values of x's and y's into the coordinate geometry.

Given that a line  y=-2x+7

Now in order to satisfy any point of this function then the value or

coordinate should satisfy the function or line.

So by checking option (A) 9 = -2(-1) + 7 = 9 so its satisfy.

So all options except (C) are satisfying.

Option (C) ⇒

-2(-3) + 7  ≠ 1

Hence "The point (-3,1) is not passing through the graph y = -2x + 7".

For more information about the graph of a function

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Answer:

350

Step-by-step explanation:

Introduction. Percent, p%

'Percent (%)' means 'out of one hundred':

p% = p 'out of one hundred',

p% is read p 'percent',

p% = p/100 = p ÷ 100

120% = 120/100 = 120 ÷ 100 = 1.2

100% = 100/100 = 100 ÷ 100 = 1

Percentage of 120% of what number = 420?

120% × ? = 420

? =

420 ÷ 120% =

420 ÷ (120 ÷ 100) =

(100 × 420) ÷ 120 =

42,000 ÷ 120 =

350

If 120% × 350 = 420 =>

Divide 420 by 350...

... And see if we get as a result: 120%

Multiply a number by the fraction 100/100,

... and its value doesn't change.

100/100 = 100 ÷ 100 = 1

n/100 = n%, any number.

what is the length of the side of a square whose area is represented by the expression 25x² + 40x + 16?

Answer: (5x + 4)²

Hope this helps~

Answer:

10

Step-by-step explanation:

You make a proportion 9/6=15/x then multiply 6 and 15 and divide it by 9

The height the 15 ft building touches the building is approximately 10 ft.

The ladder is 9 ft tall and leaning on a wall that is 6 ft above the ground.

The situation forms a right angle triangle.

Therefore, let's find the angle made by the 9 ft ladder and then use it to find the height the 15 ft ladder touch the building.

Using trigonometric ratios,

let

∅ = angle

tan ∅ = opposite / adjacent

tan ∅ = 6 / 9 = 2 / 3

∅ = tan⁻¹ 0.6666666

∅ = 33.6900672615

Therefore, the height the 15 ft ladder touch building can be calculated as follows:

tan 33.69 = h / 15

h = 15 × 0.66666496431

h = 9.99997446476

h ≈ 10 ft.

learn more right angle triangle here: https://brainly.com/question/11821563?referrer=searchResults

Answer:

1:144

Step-by-step explanation:

if each floor is 15 feet, the whole building is 60 feet tall. so it does have a scale of 5 inches:60 feet but if you simplify that, its 1 inch: 12 feet, so you convert feet into inches by multiplying by twelve, which gives you a scale of 1:144 inches

Answer:

1:144 inches

Step-by-step explanation:

Answer:

55.5 cm^2

Step-by-step explanation:

9x 9 x 1/1= 40.5

3x5= 15

40.5+15=55.5

Answer:

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Step-by-step explanation:

Answer:

so angle a is 60 and angle c is 80. you add those together to get 140. you then subtract 140 from 180 and you get 40. lastly you divide 40 by 2 and you get 20 for x.

Answer: x  =  1  ,  y  =  0

Step-by-step explanation:

hope this helps :)

Answer:

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Answer:

48

Step-by-step explanation: