Evaluate 3.6x + 4.5y when x=3 and y=7

Answer: n=3

Step-by-step explanation:

Understand that you need to set up a proportion before you can try to solve the question through guessing. In this case, YZ would be proportional to XY as EF is proportional to DE. You would write this as: EF/DE=YZ/XY.

Now you want to write an equation. In order to do this remember to multiply by your proportion. Here’s my equation:

5/4(4n+4)=7n-1. Now distribute:

5n+5=7n-1. Now simplify:

6=2n. Now simplify again:

n=3

Hope this helps you with your big ideas math hw!

The value of is n=3

5/4(4n+4)=7n-1.

Now distribute:

5n+5=7n-1.

Now simplify:

6=2n.

n=3

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Answer: x≥-3

Step-by-step explanation:

-(4x-5)+16x≥-31

-4x+5+16x≥-31

12x+5≥-31

   -5  -5

12x≥-36

12/12x≥-36/12

x≥-3

hope this helped :)

Answer:

17/4 divided by 4 = 4  and 1/4

Step-by-step explanation:

In order to find the mixed number you have to divide the numerator by the denominator.

Answer:

Equation of the line is y = x + 1

Standard Form: x - y = 1

Step-by-step explanation:

Ax + By = C

y = x + 1

-x + y = 1 ("A" must be positive)

x - y = -1

Answer:

thx lol

Step-by-step explanation:

Answer:

Thanks have an awsome day :)

Step-by-step explanation:

Answer:

0.6

Step-by-step explanation:

Answer:

62-24=38

or 24 + x = 62

Step-by-step explanation:

The equation to determine whether Owen earned $38 or $31 on Saturday afternoon ⇒ $24 + $ x = 62.

The solution of a linear equation is defined as the points, in which the lines represent the intersection of two linear equations. In other words, the solution set of the system of linear equations is the set of all possible values to the variables that satisfies the given linear equation.

According to the questions,

On Saturday morning, Owen earned $24 raking leaves.

By the end of the afternoon he had earned a total of $62.

The equation to determine whether Owen earned $38 or $31 on Saturday afternoon.

⇒ $62 - $24 = $38

⇒ $24 + $ x = 62

Hence the required equation is $24 + $ x = 62.

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Answer

wrong topic, this is about economics

Answer:

y=100x+25

Step-by-step explanation:

I'm assuming you need an equation for this.

the answer is y = 100x + 25 or 25(4x+1)

Answer:

-3

Step-by-step explanation:

absolute value means how far the number is from 0 so 3 and -3 are both 3 away from 0

Answer:

Step-by-step explanation:

A.

Diameter : 14 inches

Radius : 7 inches

Circumference: 2 • 3.14 • 7 = 43.96

Área: 7^2 • 3.14

B.

Diameter: 18 cm

Radius: 9 cm

Area: 9^2 • 3.14 Ex R^2 • 3.14

Circumference: 2 • 3.14 • 9 = 56.52

R • 3.14 • 2

Answer:

200%.

100% of 12 is 12 since for example if a coat is 10$ and 100% off then its now 0$. Therefore 200% is twice of 12 making it 24.

24=200% of 12

Step-by-step explanation:

Answer:

lolshdusudyudhdgfhfhd

Answer:

17

Step-by-step explanation:

if a=2 then

4(2)-2x is greater than or equal to 13(2)

8-2x is greater than or equal to 26

You now have to find the smallest number that will accurately fit this equation. In this case it is 17.

8-2(17) is greater than or equal to 26

8-34 is greater than or equal to 26

26 is greater than or equal to 26

Hope this helps :)

Answer:

A = Hard to do, B = Easiest, C = Pretty Easy, D = Hard

Step-by-step explanation:

Step 1:

5x - 2y = -18

x - 8y = 80

__________

Step 2:

4(5x - 2y) = (-18)4

20x - 8y = -72

__________

Step 3:

20x - 8y = -72

x - 8y = 80

__________

Step 4:

21x = ?

Also, this equation isnt a substitution question, the way to solve this is by using elimination, you can tell because the values are lined up perfectly, sub. is used when y/x, is on the bottom left or right, and the other is on the opposite.

(if this makes any sense)

If this is accurate please mark it with a brainliest :)

9514 1404 393

Answer:

Step-by-step explanation:

Pick the variable you want to eliminate. Determine the coefficients of that variable in the two equations. Negate one of them. Multiply each equation by the coefficient that came from the other equation.

__

To eliminate x

The x-coefficients are 4 and 3. If we negate 4, then the resulting y-coefficient will be positive. We choose to multiply the first equation by 3, the second by -4.

Here is the result of adding those:

  3(4x +5y) -4(3x -2y) = 3(7) -4(-12)   ⇒   23y = 69

To eliminate y

The y-coefficients are 5 and -2. If we negate -2, then the resulting x-coefficient will be positive. We choose to multiply the first equation by 2 and the second by 5.

Here is the result of adding those:

  2(4x +5y) +5(3x -2y) = 2(7) +5(-12)   ⇒   23x = -46

Answer:

Step-by-step explanation:

to kill x: duplicate the primary by 3, and the moment by -4 to eliminate y: increase the primary by 2, and the moment by 5 Step-by-step explanation: Pick the variable you need to eliminate. Decide the coefficients of that variable within the two conditions. Refute one of them. Increase each condition by the coefficient that came from the other equation. __ To dispense with x The x-coefficients are 4 and 3. On the off chance that we invalidate 4, then the coming about y-coefficient will be positive. We select to increase the primary condition by 3, the moment by -4. Here is the result of including those: 3(4x +5y) -4(3x -2y) = 3(7) -4(-12) ⇒ 23y = 69 To dispose of y The y-coefficients are 5 and -2. If we nullify -2, at that point the coming about x-coefficient will be positive. We select to duplicate the primary condition by 2 and the moment by 5. Here is the result of including those: 2(4x +5y) +5(3x -2y) = 2(7) +5(-12) ⇒ 23x = -46

hope this helps

Answer:

D.

Step-by-step explanation:

Answer

The answer is D (10,9)

Step-by-step explanation:

i took the test on edmentum and got it right

Answer:

-9 is the answer

Step-by-step explanation:

hope it helps!

Answer:

[tex]8x+46[/tex]

Step-by-step explanation:

Insert the original values of C and D into the new expression:

[tex]2(x+8)+3(2x+10)[/tex]

Simplify the expression. Use the distributive property:

[tex]2(x)+2(8)+3(2x)+3(10)\\\\2x+16+6x+30[/tex]

Combine like terms:

[tex](2x+6x)+(16+30)\\\\8x+46=2C+3D[/tex]

:Done

Answer:

G is equal to (8, -11)

Step-by-step explanation:

We are given the midpoint and one end of the line segment.  We can find the other end of it by taking the distance from H to M, doubling it, and adding that to H:

[tex]G(x, y) = H(x, y) + 2(M(x, y) - H(x, y))\\\\G_x = H_x + 2(M_x - H_x)\\G_x = -4 + 2(-6 - (-4))\\G_x = -4 + 2(-2)\\G_x = -4 - 4\\G_x = 8\\\\G_y = H_y + 2(M_y - H_y)\\G_y= 3 + 2(- 3 - 4)\\G_y= 3 - 6 - 8\\G_y = -11[/tex]

So the coordinates of endpoint G are (8, -11)

Answer:i really wish i could help

Step-by-step explanation:

Answer:

Simplifying

y = 12x + 25

Reorder the terms:

y = 25 + 12x

Solving

y = 25 + 12x

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Simplifying

y = 25 + 12x

Step-by-step explanation:

I tried

Answer:

5 over 8

Step-by-step explanation:

convert the mixed numbers to improper fractions then divide them and simplify

equation: 7/2 ÷ 40/7 = 50/80 or simplify to 5/8

*the slash is supposed to be the line that separates the top and bottom number in the fraction*

Answer:

16

Step-by-step explanation:

[tex]x^{y} = 2^{4}=16[/tex]

Answer:

468

Step-by-step explanation:

3,744/8=468

Answer:

-8x^2+x+2

Step-by-step explanation:

Answer:

[tex]d\approx 16.16\ units[/tex]

Step-by-step explanation:

Distance Between two Points in the Plane

Given two points A(x,y) and B(w,z), the distance between them is:

[tex]d=\sqrt{(z-y)^2+(w-x)^2}[/tex]

The triangle formed by the points N (7,3), 0(-8, -3), and  P(-8,-8) is shown in the image provided.

We are required to find the distance between N and O:

[tex]d=\sqrt{(-3-3)^2+(-8-7)^2}[/tex]

[tex]d=\sqrt{(-6)^2+(-15)^2}[/tex]

[tex]d=\sqrt{36+225}[/tex]

[tex]d=\sqrt{261}[/tex]

Since 261=9*29:

[tex]d=3\sqrt{29}[/tex]

[tex]\mathbf{d\approx 16.16\ units}[/tex]

Answer:

a

Step-by-step explanation:

Answer: Im pretty sure that its D

Step-by-step explanation:

pls dont be mad if its wrong

Answer: C

Step-by-step explanation: Just did khan academy