7th grade math help me plzzzz

Answer:

12x -11

Step-by-step explanation:

Lets start by applying the 2/3 to the two values in the parenthesis. Doing so will yield: 4x -7 +8x -4. We can simplify this to be 12x -11

Answer:

D) [tex]x \leqslant - 3[/tex]

Explanation provided above.

The solution to the inequality -2x + 5 ≥ 3x + 20 is x ≤ -3.

Option D is the correct answer.

We have,

To solve the inequality -2x + 5 ≥ 3x + 20, we can follow these steps:

Subtract 3x from both sides to isolate the variable on one side:

-2x - 3x + 5 ≥ 3x - 3x + 20,

-5x + 5 ≥ 20.

Subtract 5 from both sides:

-5x + 5 - 5 ≥ 20 - 5,

-5x ≥ 15.

Divide both sides by -5.

Remember that when dividing by a negative number, the inequality direction flips:

(-5x) / (-5) ≤ 15 / (-5),

x ≤ -3.

Therefore,

The solution to the inequality -2x + 5 ≥ 3x + 20 is x ≤ -3.

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Answer:

-11/5

Step-by-step explanation:

In order to solve it u should open the mixed fraction ,i.e,

11/7÷-15/21

=11/7×-21/15

Cutting,

ans=-11/5

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Answer:

Fraction: -11/5

Decimal form: -2.2

Mixed number form: -2 1/5

Step-by-step explanation:

Answer:

gsgdysbdhydsh jz jsjsjeueheyshsusjdhhdjdhdud7

Step-by-step explanation:

Answer:

Wiki Biki Kiki mc mf you

Answer:

B

Step-by-step explanation:

24*3=72

36*2=72

Answer:

8100 seconds

Step-by-step explanation:

2 1/4 = 2.25

2.25 x 3600 = 8100

Answer:

B you could get the exact number if desk

Answer:

Whole numbers is the most reasonable to describe the number of desks.

Answer:it’s b because can fold into the shape

Step-by-step explanation:

Answer:

How do u know wether two quantities x and y are proportional?

Step-by-step explanation:

Every sum x + y is the same for related pairs of x and y.

I hope that helped, let me know if you need help with anything else.

Answer:

A watermelon my woman

Step-by-step explanation:

Answer:

what's the diagram??

Step-by-step explanation:

what's the diagram??

Answer:

answer yourself

Step-by-step explanation:

Answer:

x = 7

Step-by-step explanation:

Answer:

x = 7

Step-by-step explanation:

We have to solve for [tex]x[/tex] so we isolate the value of x in the expression.

[tex]2x + 2x - 9 = 19[/tex]

[tex]2x + 2x - 9 + 9 = 19 + 9[/tex]

[tex]2x + 2x = 28[/tex]

[tex]4x = 28[/tex]

[tex]\frac{4x}{4} = \frac{28}{4}\\[/tex]

[tex]x = 7[/tex]

Answer:

7 minutes

Step-by-step explanation:

Antonio's plan: Monthly cost

3 (.75m + 10) + 2.50m – 15

Marcus's Plan: Monthly cost

2 (1.75m + 12.50) – .75m + 4

where, m = number of minutes used by setting their monthly cost equal

3 (.75m + 10) + 2.50m – 15 = 2 (1.75m + 12.50) – .75m + 4

2.25m + 30 + 2.50m - 15 = 3.5m + 25 - .75m + 4

4.75m + 15 = 2.75m + 29

4.75m - 2.75m = 29 - 15

2m = 14

Divide both sides by 2

m = 14 / 2

= 7

m = 7 minutes

Answer:

  15 houses

Step-by-step explanation:

[tex]\frac{2}{5} = \frac{6}{y} \\[/tex]

2y = 30

y = 15 houses

Figure 2 as it is the same as original but bigger

Answer:

y = (x/4) + 3

9514 1404 393

Answer:

  36 2/3 inches by 40 inches

Step-by-step explanation:

To find the drawing dimension, multiply the actual dimension by the scale factor:

  (550 ft)×(1 in/(15 ft)) = (550/15) in = 36 2/3 in

  (600 ft)×(1 in/(15 ft)) = (600/15) in = 40 in

The dimensions on the drawing would be 36 2/3 inches by 40 inches.

Answer:0.275

Step-by-step explanation:

9514 1404 393

Answer:

Step-by-step explanation:

1. The domain is the horizontal extent of the graph. The domain of the solution space extends to x=8 on the right, with x=8 not included. The appropriate description is ...

  (-∞, 8)

__

2. A suitable matrix calculator gives the solution as ...

  (2, 5, -2)

__

3. A suitable matrix calculator gives no solution. (The reduced form of the last equation is 0=1. No variable values will make this true.)

Answers Below

1) = 1/5

2) = 1/4

3) = 3/20

4) = 2/25

5) = 1/3

Please Brainly

Answer:

i)1/5

ii)1/2

iii)3/20

iv)1/3

Step-by-step explanation:

Just keep eliminating in all sums as we are multiplying and u will get the ans.

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Answer:

62 large cups were sold

Step-by-step explanation:

88*1.25=110

265-110=155

155/2.50=62

Answer:

Step-by-step explanation:

do you mean what is c?

Answer:

its c on edge

Step-by-step explanation:

restrict the domain to (-pi/2,pi/2)

The restriction that should be applied to the function [tex]y = tanx[/tex] for [tex]tan^{-1} (x)[/tex] to be defined is option (C) restrict the domain to [tex](-\frac{\pi }{2} ,\frac{\pi }{2} )[/tex] is the correct answer.

A graph can be defined as a pictorial representation or a diagram that represents data or values in an organized manner. The graph of a function f is the set of all points in the plane of the form (x, f(x)).

For the given situation,

The graph below shows the functions tan(x) and arctan(x) that is tan^-1(x)

In order to have an inverse function for trigonometry, we restrict the domain of each function, so that it is one to one.

A restricted domain gives an inverse function because the graph is one to one and able to pass the horizontal line test.

Thus by restricting the domain [tex](-\frac{\pi }{2} ,\frac{\pi }{2} )[/tex] we can obtain the function [tex]tan(x)[/tex] as [tex]tan^{-1} (x)[/tex].

Hence we can conclude that the restriction that should be applied to the function [tex]y = tanx[/tex] for [tex]tan^{-1} (x)[/tex] to be defined is option (C) restrict the domain to [tex](-\frac{\pi }{2} ,\frac{\pi }{2} )[/tex] is the correct answer.

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9514 1404 393

Answer:

  $7200

Step-by-step explanation:

If x is the total amount borrowed, then 2/3x was borrowed from Bank Seven, and 1/3x was borrowed from First Collegiate Bank. The total interest owed was ...

  (2/3x)(0.12) +(1/3x)(0.10) = $816

  x(2/25 +1/30) = $816

  (17/150)x = $816

  x = $816(150/17) = $7200

Mark borrowed a total of $7200.