Solve for x. 2x + 5 = 3x -1

Answer:

A: The area of it would be the equation (10x8)x(26)= 2,080 Inches

The perimeter would be (10+32+10+20)= 72

B: Perimeter on the top part of the frame

C: The area of it would be the equation (10x8)x(26)= 2,080 Inches

D: (10+32+10+20)= 72

Plz mark me brainsliestttt!!

Answer:

Step-by-step explanation:

1)

A. 2 meters to centimeters

1 m = 100 cm

[tex]2 m = 2 \times 100 \\2 m = 200 cm = 2 \times 10^2[/tex]

B)108 centimeters to meters

100 cm =1 m

[tex]1 cm = \frac{1}{100} m \\108 cm = \frac{108}{100}=108 \times 10^{-2} m[/tex]

C)2.49 meters to centimeters

1 m = 100 cm

[tex]2.49 m = 2.49 \times 100 = \frac{249}{100} \times 100 = 249 cm[/tex]

D)50 centimeters to meters

100 cm = 1m

[tex]1 cm = \frac{1}{100} m \\50 cm = \frac{50}{100}= 5 \times 10^{-1} m[/tex]

E)6.3 meters to centimeters

1 m = 100 cm

[tex]6.3 m = 6.3 \times 100=\frac{63}{10} \times 100 = 630 cm[/tex]

F)7 centimeters to meters

100 cm = 1 m

[tex]1 cm = \frac{1}{100} m\\\\7 cm = \frac{7}{100} = 7 \times 10^{-2} m[/tex]

2)

a)4 meters to millimeters

1 m = 1000 mm

[tex]4 m = 4000 = 4 \times 10^3 mm[/tex]

b)1.7 meters to millimeters

1 m = 1000 mm

[tex]1.7 m = 1.7 \times 1000= \frac{17}{10} \times 1000=17 \times 10^2 mm[/tex]

The answer is B, I just answered this question on my quiz.

Answer:

the answer is 0.4 The reason is because 0.4 x8=0.32

Step-by-step explanation:

Answer:

the answer is the answer the answer is x=55 degrees because the angle sum for a triangle is 180 degrees and because we are told angle A and angle C are congruent that means you can simply take 180 - 70 to get 110 and i simply divided that by 2 and got 55 degrees

Step-by-step explanation:

Answer:

Step-by-step explanation:

A point is plotted at 30.05 on a number line. Which of the options describes the location point?

There are no options to choose from but below is the description of the location point:

30.05 units to the east of the center of the number line. The center of the number line is point zero (0) and separates the negative side from the positive side. 30.05 is on the positive side.

Answer:

between 30 and 31

Step-by-step explanation:

Answer:

Option 2: 1 teaspoon of baking soda per 1 cup of flour

Option 3: ½ teaspoon of salt per 1 teaspoon of baking soda

Step-by-step explanation:

The recipe has 3 ingredients mixed in the following ratio =>

½ of a cup of flour : ½ of a teaspoon of baking soda : ¼ of teaspoon of salt

Let's analyse each given options to see which rate is correct or not using the above ratio that makes a recipe:

Option 1 => 2 teaspoon of salt : 1 teaspoon of baking soda.

¼ salt : ½ baking soda

2 salt : x baking soda

Thus, ¼ / ½ = ²/x

Cross multiply

¼*x = ½*2

x/4 = 1

x = 4

Therefore, 2 teaspoon of salt will need 4 teaspoon of baking soda not 1.

Option 2 => 1 teaspoon of baking soda : 1 cup of floor.

½ baking soda : ½ flour

1 baking soda : x flour

Thus, ½ / ½ = ¹/x

Cross multiply

½*x = ½*1

x/2 = ½

Multiply both sides by 2

x = ½*2

x = 1

Therefore, 1 teaspoon of baking soda will need 1 cup of floor. This is correct.

Option 3 => ½ teaspoon of salt : 1 teaspoon of baking soda.

¼ salt : ½ baking soda

½ salt : x baking soda

Thus, ¼ / ½ = ½/x

Cross multiply

¼*x = ½*½

x/4 = ¼

Multiply both sides by 4

x = ¼*4

x = 1

Therefore, ½ teaspoon of salt will need 1 teaspoon of baking soda. This is correct.

Option 4 => 1 teaspoon of baking soda : 2 teaspoon of salt.

½ baking soda : ¼ salt

1 baking soda : x salt

Thus, ½ / ¼ = 1/x

Cross multiply

½*x = ¼*1

x/2 = ¼

Multiply both sides by2

x = ¼*2

x = ½

Therefore, 1 teaspoon of baking soda will need ½ teaspoon of salt not 2.

Option 5 => 2 teaspoon of salt : 1 cup of flour

¼ salt : ½ flour

2 salt : x flour

Thus, ¼ / ½ = ²/x

Cross multiply

¼*x = ½*2

x/4 = 1

x = 4

Therefore, 2 teaspoon of salt will need 4 cup of flour not 1.

The correct options are option 2 and option 3.

Answer:

a. increasing n decreases E

Step-by-step explanation:

The sample size refers to the number (n) of units or observations taken from a population for a study. The results obtained from this sample size can be used to make generalizations about the entire population. The margin of error (E) is a measure of the sampling error or the percentage of the difference between the results obtained from the study and the true population value. The relationship between the sample size (n), and the Margin of error (E) is an inverse. That means

Sample size (n) ∝ 1/E

So, as the sample size increases, the margin of error decreases. This would be even more true if the accurate procedures for the experiment are followed.

Answer:

x=3.2

Step-by-step explanation:

Answer:

x=3.2

Step-by-step explanation:

Divide each term by  5.5  and simplify.

x = 3.2

Answer:

85°

Step-by-step explanation:

180° - (67°+28°) =p

180°- 95° = p

P = 85°

Answer:

3/5

Step-by-step explanation:

m = change in y / change in x

m = 3 / 5

Explicación paso a paso:

Como no dijimos qué calcular, también podemos encontrar el tiempo que tarda el automóvil en viajar por la carretera.

Velocidad = Distancia / Tiempo

Tiempo = Distancia / Velocidad

Dado

Distancia = 200 km

Velocidad = 120 km / h

Sustituir

Tiempo = 200/120

Tiempo = 20/12

Tiempo = 1,67 horas

Por tanto, el tiempo que tarda el coche en recorrer la carretera es de 1,67 horas.

Se tarda aproximadamente 1.67 horas en viajar por la autopista de Arabia Saudita.

La velocidad es la relación entre la distancia total recorrida y el tiempo total empleado. Está dado por:

Deje que el tiempo necesario para viajar Arabia Saudita sea t. Por eso:

t = 200/120

Se tarda aproximadamente 1.67 horas en viajar por la autopista de Arabia Saudita.

Obtenga más información sobre la velocidad en: https://brainly.com/question/4931057

Answer:

there is no graph. can you edit the question?

Answer:

Ok:

Step-by-step explanation:

Welp, I don't see the graph but I can tell you what to do. You find x = 4, and draw a vertical line up. Once your line reaches the graph, see what the y value is. If the question is nice, you should get an exact integer number

Let the number be x .

Reciprocal of x :-

[tex] = \frac{1}{x} [/tex]

An equation to find x :-

[tex]2 \times \frac{1}{x} = 16 \times \frac{1}{20} [/tex]

[tex] \frac{2}{x} = \frac{16}{20} [/tex]

[tex]16 \times x = 20 \times 2[/tex]

[tex]16x = 40[/tex]

[tex]x = \frac{16}{40} [/tex]

[tex]x = \frac{4}{10} [/tex]

[tex]x= \frac{4 \div 2}{10 \div 2} [/tex]

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

Reciprocal of x :-

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

Which means the number :-

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

We can check it by :-

[tex]2 \times \frac{2}{5} = \frac{16}{20} [/tex]

[tex] \frac{4}{5} = \frac{16}{20} [/tex]

[tex] \frac{4}{5} = \frac{16 \div 4}{20 \div 4} [/tex]

[tex] \frac{4}{5} = \frac{4}{5} [/tex]

LHS = RHS

Which means we have found the correct number .

Therefore , the value of the number , whose reciprocal multiplied by 2 gives 16 times the reciprocal of 20 is :-

Answer:

y = 1.50x + 3000

Step-by-step explanation:

Answer:

Each battery costs .5 dollars or 50 cents

Step-by-step explanation:

6/12=.5

Answer:

total units 12

cost per unit $ 0.5000

Step-by-step explanation:

Hope this helps! :)

Answer:

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Answer:

28

Step-by-step explanation:

28/1 = 28

Answer:

Step-by-step explanation:

7) ∠1  + 30 = 180                {linear pair}

            ∠1 = 180 - 30

            ∠1 = 150

8)  ∠2 = 30    {Vertically opposite angles are congruent}

9) In ΔLMN,

∠L + ∠N + ∠M = 180   {angle sum property of triangle}

50 + 30 + ∠M = 180

       80 + ∠M = 180

                ∠M = 180 - 80

                ∠M = 100°

10) Sum of exterior angle of a triangle equals to sum of opposite interior angles.

∠B + ∠A = ∠BCD

30 +   ∠A = 80

        ∠A  = 80 - 30

      ∠A = 50

Step-by-step explanation:

The given equation or expression is used to determine the total cost of buying carnival tickets.

the total cost is y

Also from the expression the cost of a ticket is $2.5

and x represents the number of tickets

now say x=5, that is 5 tickets, then the cost of buying the 5 tickets is given as

y=2.5(5)

y=12.5

Hence the cost of 5 tickets is $12.5

Answer:

12 Car washes for $100

Step-by-step explanation:

mark brainliest please.

Answer:

12 cars for $100

Step-by-step explanation:

This is because on car with this deal would cost $8.33 while with deal 2 one car would cost $9 and you want the cheaper deal in this case.

Answer:

1800000 kilometers

Step-by-step explanation:

i think im not 100% sure

Answer:

29 and 35

Step-by-step explanation:

x+y=64

x-y=6

Solve by substitution.

x=6+y

6+y+y=64

6+2y=64

y=29

Then plug in 29 for y.

x+29=64 ......35

The two numbers that have a sum of 64 and a difference of 6 will be 29 and 35.

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

The sum of the two numbers is 64 and the difference is 6.

Let the two numbers be 'x' and 'y', and y is greater than x. Then the equations are given as,

x + y = 64           ...1

y - x = 6             ...2

Add both equations, then we have

y + y = 64 + 6

2y = 70

y = 35

Then the value of 'x' will be given as,

x + 35 = 64

x = 29

The two numbers that have a sum of 64 and a difference of 6 will be 29 and 35.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

#SPJ2

Answer:

(1.)3.5 (2.)-3 (3)0

Step-by-step explanation:

if right comment please

Answer:

I don't see the screenshot and i'm not going to download it...

Step-by-step explanation:

yikes

Answer:

19.5

Step-by-step explanation:

Answer:7x+28

Step-by-step explanation:

Answer:

7x + 28

Step-by-step explanation:

Line up the columns just like with standard addition.  Keep the x numbers in the same columns and keep the integers in their columns.  It will look like this:

               3x     +     15

PLUS       4x     +     13

              ----------------------

                7x     +     28