Solve for x: 3(x + 1) = -2 (x-1) - 4

Answer:

17:420

Step-by-step explanation:

17 seconds : 7 minutes

7 minutes = 420 seconds

17:420

The ratio of time measurements in two different units is 1/30.

Ratio is the quantitative relation between two amounts showing the number of times one value contains or is contained within the other.

Given are the time measurements in two different units.

Converting 2 minutes into seconds -

2 min = 2 x 60 = 120 seconds

Now, 4 seconds to 120 seconds can be written as fraction below -

x/y = 4/120 = 1/30

Then, the ratio will be -

x : y = 1 : 30

Therefore, the ratio of time measurements in two different units is 1:30

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Answer:

About 25 sandwiches...

Step-by-step explanation:

Answer:

67 sandwiches

Step-by-step explanation:

If you invest 250 dollars to start, you're currently -250. If you gain 5.25 per sandwich you sell, you'd need to sell about 67 sandwiches.

I'm not entirely sure what your question meant though. If the question is simply asking how many sandwiches it would take to make 100 dollars, it would be about 20 sandwiches. If the question is asking how many sandwiches you'd need to sell to gain 100 dollars in profit, covering the cost of the cart, it would be about 67 sandwiches.

Answer: B

Steps: $208.08

PLz mark brainliest:)

Answer:

RC,\α is a rigid motion.

Here C, is the rotacenter which is the fixed point and around C all other points move in a fixed distance by the definition of rotation.

the motion follows in a circularmanner with C as the center.

consider a point Q which changes to Q1 after rotation by an angle\alpha

Step-by-step explanation:

When considering rotational motion and subsequently rotational mechanics every point on the body must have same angular velocity and angular acceleration. If the body is not rigid different points on the body will have different angular velocity and angular acceleration.

Answer:

81/100

Step-by-step explanation:

Answer:

81/100

Step-by-step explanation:

Answer:

80

Step-by-step explanation:

These angles are alternate exterior angles and alternate exterior angles are equal when the lines are parallel

12x+8 = 13x+2

Subtract 12x from each side

12x+8-12x = 13x+2-12x

8 = x+2

subtract 2 from each side

8-2 =x

6 =x

Find the measure of the angle

12x+8

12*6+8

72+8

80

Answer:

x=-8

Step-by-step explanation:

Answer: C. cos(Pi) + isin(Pi)

Step-by-step explanation:

The value of subtraction of two given complex numbers z₁ and z₂ is cos(π) + isin(π).

A complex number is an element of a number system that includes real numbers and a specific element labeled i sometimes known as the imaginary unit, and which obeys the equation i² = 1. Furthermore, every complex number can be written as a + bi, where a and b are both real values.

We know that cos(π - x) = - cosx, sin(π - x) = sinx, cos(π/4) = 1/√2 = sin(π/4), cos(π/2) = 0, sin(π/2) = 1, cos(π) = - 1, sin(π) = 0.

Given that z₁ = √2[cos(3π/4) + isin(3π/4)] = √2[cos(π - π/4) + sin(π - π/4)] = √2[- cos(π/4) + sin(π/4)] = √2[- 1/√2 + 1/√2] = √2[0] = 0

and z₂ = cos(π/2) + isin(π/2) = 0 + i × 1 = 1

Now, z₁ - z₂ = 0 - 1 = - 1 = - 1 + i × 0 = cos(π) + isin(π)

Therefore, the value of subtraction of two given complex numbers z₁ and z₂ is cos(π) + isin(π).

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Answer:

Step-by-step explanation:

Real number: -6 (for it is a constant)

Imaginary number is 2 & i (for it does not technically exist).

hope this helps

Answer:

Three examples are 0.471, 0.472, 0.473.

Always remember there are more than 2 place values in decimals! Do not be afraid to extend it. Have a nice day and mark brainliest if possible :)

Answer:

Sara lives next to south of Maratha and has black hairs.

One women lives at the east of joi has purple hairs.

One women who has silver hairs lives in Moldova which is north to Joi.

The young women with blond hairs lobe to south of Arianna.

Step-by-step explanation:

There are five women who are at the salon for their hair care services. All of the women have different colored hairs. The women with blonde hairs live in Arianna which is south wast to the women who lives in Joi. The women who lives in Joi has purple hairs.

Answer: 35 , 14

Step-by-step explanation:

[3(-2)^2-4 ]+[8 (3)-3]                     [8(3)-3] -[ 3(-1)^2-4]

35                                                      14

Answer:

7x+4

Step-by-step explanation:

mark me brainliest pls

Answer:

a) y= 2x +3

b) y= ¼x +1

Step-by-step explanation:

Please see the attached picture for the full solution.

Further explanation:

b) y-intercept of A= 5

y-intercept of line= 5 -4= 1

Since the gradient of the line is equal to the gradient of line A, gradient of line= ¼.

[tex]\huge\boxed{\sqrt{6}+8\;is\;greater\;than \;6+\sqrt{8} }[/tex]

[tex]6+\sqrt[]{8} =8.82\\\sqrt{6}+8=10.44\\\\\boxed{Therefore, \sqrt{6}+8\;is\;greater\;than\;6+\sqrt{8}. }[/tex]

Answer:

True

Step-by-step explanation:

Answer:

False

Step-by-step explanation:

Answer:

- 73 3/10

Step-by-step explanation:

Step 1:

- 73.3 = -733%

Step 2:

- 733% = - 73 3/10

Answer:

- 73 3/10

Hope This Helps :)

9514 1404 393

Answer:

  -73 3/10

Step-by-step explanation:

Pronouncing a decimal number can help when you convert it to a mixed number. This one is ...

  "negative seventy-three and three tenths"

Of course, expressing "three tenths" as a fraction, you have 3/10.

Then your number is ...

  -73.3 = -73 3/10

Answer:

Step-by-step explanation:

1/2

Answer:

37.3 x 10⁶

Step-by-step explanation:

Given parameters:

Number of people in California = 3.9 x 10⁷

Number of people in Idaho = 1.7 x 10⁶

Unknown:

How many more people live in California than live in Idaho = ?

Solution:

To find the number of people living in California more than Idaho, simply find the differences between the number of their population;

     =   3.9 x 10⁷  - 1.7 x 10⁶

    = 39 x 10⁶ - 1.7 x 10⁶

    = (39 - 1.7) x 10⁶

   = 37.3 x 10⁶ people

So, 37.3 x 10⁶ more people live in California than Idaho

Answer:

B. No, Gio's claim is incorrect because the Pythagorean theorem can only be used

with a right triangle.

Step-by-step explanation:

The pythagorean theorem which is given as a² + b² = c², only applies to right triangles. Where, c is the hypotenuse side length that is opposite to the right angle of the triangle, while a and b are the two other legs of the right triangle.

The triangle given above is not a right angle. The measure of the missing length = 180 - (60 + 40) = 80°.

A right ∆ has an angle measure of 90°. Therefore, the pythagorean theorem cannot be applied in this case to solve for the missing side length, x.

So, Gio's claim is INCORRECT.

Answer:

b

Step-by-step explanation:

A crotchet is one, a tied crotchet is 2-3, the quavers are 4 +

Answer:

g. -18, h. 13, I. -14

Step-by-step explanation:

g. b-10=-8-10=-18

h. a-b=5-(-8)=5+8=13

I. c-a=-9-5=-14

Answer:

The time X (min) for a lab assistant to prepare the equipment for a certain experiment is believed to have a uniform distribution with A = 25 and B =35.. a. Determine the pdf of X and sketch the corresponding density curve.

Step-by-step explanation:

I think :/

Answer:

150

Step-by-step explanation:

Hope this helped you!!

Answer:

x = 1 ⇔ y = -2.4

x = 2 ⇔ y = -1.8

x = 3 ⇔ y = -1.2

x = 4 ⇔ y = -0.6

Step-by-step explanation:

[tex]3x-5y=15[/tex]

→ Rearrange to make y the subject

[tex]-5y=-3x+15[/tex]

→ Multiply everything by -1

[tex]5y=3x-15[/tex]

→ Divide everything by 5

[tex]y=0.6x-3[/tex]

⇒ Substitute x = 1, 2, 3 and 4

[tex]y=0.6x-3\\ y=(0.6*1)-3\\ y=0.6-3\\ y=-2.4\\(1,-2.4)[/tex]

[tex]y=0.6x-3\\ y=(0.6*2)-3\\ y=1.2-3\\ y=-1.8\\(2,-1.8)[/tex]

[tex]y=0.6x-3\\ y=(0.6*3)-3\\ y=1.8-3\\ y=-1.2\\(3,-1.2)[/tex]

[tex]y=0.6x-3\\ y=(0.6*4)-3\\ y=2.4-3\\ y=-0.6\\(4,-0.6)[/tex]

=========================================

Explanation:

x = number of people

Without the discount, each person pays $72, so the total cost is 72x dollars if x people go through the gate individually.

Now applying the group discount, those x people pay 72-25 = 47 dollars each. Meaning the total cost is now 47x. Keep in mind that [tex]x \ge 15[/tex] in order for the discount to kick in.

Subtracting the two amounts leads to 72x-47x = 25x. It is not a coincidence that we get a coefficient of 25 here.

Set this equal to 500 and solve for x

25x = 500

x = 500/25

x = 20

------------

If x = 20 people attend individually, then they pay 72*x = 72*20 = 1440 dollars.

If 20 people go as one group, they pay 47x = 47*20 = 940 dollars

We have a savings of 1440-940 = 500 dollars. This confirms the answer.

All 20 people must go as one group if they want to save $500.

Answer:

No

Step-by-step explanation:

they are not equivalent