More maths pl,s answer

In order to solve the following equation:

-4x - 9 = 23

We want to "leave alone" the x on one side of the equation.

In order to solve the equation for x we just have to remember one simple rule:

Step 1: taking -9 to the right side

We want to take -9 to the right side of the equation:

-4x - 9 = 23

↓ adding 9 both sides

-4x - 9 + 9 = 23 + 9

↓ since - 9 + 9 = 0 on the left side and 23 + 9 = 32 on the right

-4x + 0 = 32

-4x = 32

Step 2: taking -4 to the right side

We want to take -4 to the right side of the equation:

-4x = 32

↓ dividing - 4 both sides

-4x/(-4) = 32/(-4)

↓ since -4x/4=x on the left side and 32/(-4) = -8 on the right

x = -8

Answer:

Solution:

Hi! To solve this equation, we should first simplify it as much as possible. Can you see that the number 9 has both signs, +-9? Well it can be simplified to just one sign, -9.

Now, we need to add 9 to both sides. As a result, the left side will simplify to \(\bold{-4x}\), and the right side will be \(\bold{23+9}\), which, of course, simplifies to \(\bold{32}\).

Now, the equation looks like this: \(\bold{-4x=32}\).

The next step is to divide both sides by -4: \(\bold{x=-8}\).

Problem solved! It's been a pleasure helping you.

The error that was made in finding the area of the circle is that diameter was used for radius. The correct area of the circle is: 113.10 ft²

The formula for area of a circle is expressed as:

A = πr²

where:

A is Area

r is radius

From the given circle, we are given the diameter as 12.

But radius = diameter/2 = 12/2

radius = 6

Thus, the error is that they used the diameter as radius.

Correct area of circle = π * 6²

= 36π

= 113.10 ft²

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Answer:

xy=3/4

Step-by-step explanation:

since it says the "product"

it is x(y)

3/4 goes after the = sign

The number 5 should be subtracted from the right side of the equation to make it a proportional equation.

The slope-intercept representation of a linear function is given by the equation presented as follows:

y = mx + b

The coefficients of the function and their meaning are described as follows:

The function in this problem is given as follows:

y = 6x + 5.

A proportional relationship is a special case of a linear function with an intercept of zero, hence we must subtract by 5 as follows:

y = 6x + 5 - y

y = 6x.

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An equation can be written to determine the number of students that went on this trip is: C. \(\frac{1259}{s} + 12=\frac{1259}{s+9}\)

In order to write an equation to determine the number of students that went on this trip, we would have to assign a variable and an expression to the number of students who went on the trip and the original number of students who had planned to go on the trip as follows;

Since a total of $1259 was collected from all of the students with 9 students dropping out and their portion of the money collected given back to them while the students that are all still going must contribute an additional $12, an equation to determine the number of students that went on this trip is given by;

\(\frac{1259}{s} + 12=\frac{1259}{s+9}\)

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Complete Question:

A high school class is planning a field trip to an art museum in their city. The class collected a total of $1259 from all of the students, which will go towards renting a bus, museum admission, and lunch.

However, a week before the trip 9 students had to drop out and their portion of the collected money had to be given back to them. Due to this, the students that are all still going must contribute an additional $12 each to cover all of the cost.

Now let s be the number of students who went on the trip and s + 9 be the original number of students who had planned to go on the trip

What equation can be written to determine the number of students that went on this trip?

Answer:

7.7

Step-by-step explanation:

I did it on edu!

You can use the fact that area of a rectangle is its length times its width.

The length of the given rectangle is 28 feet.

Area of a rectangle is its length times its width.

If a rectangle has length x units and width y units, then we have:

\(Area = x \times y \: \rm unit^2\)

Most of the times, you will get some other facts or information by which the unknown values of those items can be known. For simple daily life cases, we can use variables, which are nothing but just placeholders for those unknown values. We can then operate on those variables assuming them to be actual values, thus, getting near to their original values.

Let the length of the given rectangle be x units, and let its width be y

Then as it is given that

Length of the rectangle = 2 times width of the rectangle

or

\(x = 2 \times y\)

We have area= 392 square feet

Since area = length times width, thus, we have

\(Area = x \times y\\392 = 2 \times y \times y\\\\\dfrac{392}{2} = y^2\\\\y^2 = 186\\\\\text{\:(Taking positive root on both the sides since y is width, a non negative quantity)}\\\\y = \sqrt{196} = 14\)

Thus, the width of the rectangle is 14 feet

And thus, the length of the rectangle = double of width = 28 feet.

Thus,

The length of the given rectangle is 28 feet.

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The inequality represented by the graph is given as follows:

y > 3x - 4.

The slope-intercept definition of a linear function is given as follows:

y = mx + b.

In which:

The graph crosses the y-axis at y = -4, hence the intercept b is given as follows:

b = -4.

When x increases by 1, y increases by 3, hence the slope m is given as follows:

m = 3.

Hence the equation of the line is:

y = 3x - 4.

The inequality is composed by the values to the right (greater) of the line, and has an open interval due to the dashed line, hence:

y > 3x - 4.

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Height =15cm

Width=2cm

Length=5cm

The area of the rectangle Infront =15×5=75cm ²

1 determine the area of the rectangle on the left side of the rectangular prism

2 determine the area of the rectangle at the bottom of the rectangular prism

3 determine the total surface area (TSA) of the rectangular prism.

Step-by-step explanation:

Given that

To find

So, according to the question

Let's assume,

height = h = 15cm

length = l = 2cm

width = w = 5cm

So, from question,

    Area of rectangle in front = 15 cm x 5 cm

That's mean

   Rectangle in front have h = 15cm and l = 5cm.

We know the width from question w = 2cm.

So,

   Area of the rectangle to the left = h x w

                        = 15 x 2

                        = 30 cm²

Also,

 There is no height to the rectangle at the bottom.

So, l and w make up the bottom rectangle.

Now,

the area of rectangle at the bottom  = l x w

                        = 5 x 2

                        = 10 cm²

Now,

  The total surface area (TSA) of the rectangular prism = 2(lw + wh + lh)

                        = 2 ( 75 + 10 + 30)

                        = 2 x (115)

                        = 230cm²

So,

Answer:

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Answer:

5419

Step-by-step explanation:

Answer:

The amount of money spent on tickets and snacks will be $39 and $20. And the total amount is $59.

Step-by-step explanation:

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

Ellie is going to see a movie and is taking her 2 kids. Each movie ticket costs $13 and there are an assortment of snacks available to purchase for $5 each.

The amount of tickets is given as,

Ticket's amount = 3 x $13

Ticket's amount = $39

Then the amount spent on snacks is given as,

Snack's amount = 4 x $5

Snack's amount = $20

Then the total amount is given as,

Total amount = $39 + $20

Total amount = $59

The amount of money spent on tickets and snacks will be $39 and $20. And the total amount is $59.

Answer:8

Step-by-step explanation:8x1=8

If the water snake is initially 30 meters below the ground level and then climbs 20 meters upward, it will be 30 - 20 = 10 meters below the ground level. However, if it then slips down 10 meters, it will be 10 + 10 = 20 meters below the ground level.

Answer:

177.8

Step-by-step explanation:

There are 30.48 centimeters per foot so multiply 30.48 by 5. And there is 2.54 centimeters in a inch so multiply 2.54 by 10. And then add the totals together to get 177.8

Answer:d

Step-by-step explanation:fkjfkjfkjfkjfkjf

Answer: most likely 2,2 I believe

Step-by-step explanation:

Carrie has 4 more pints of paint than Bryan.

Carrie has 3 gallons of paint, which is equivalent to 12 quarts (1 gallon = 4 quarts). On the other hand, Bryan has 10 quarts of paint.

To compare the quantities in the same unit, we note that 1 quart is equal to 2 pints.

Carrie's 12 quarts of paint is equivalent to 12 × 2 = 24 pints.

Bryan's 10 quarts is equivalent to 10 × 2 = 20 pints.

To find the difference, we subtract Bryan's pint quantity from Carrie's:

24 - 20 = 4 pints.

Therefore, Carrie has 4 more pints of paint than Bryan.

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Answer:

281-282

Step-by-step explanation:

Answer:

1.  x = 4

2. x = -1

3. x = 0

Answer:

Step-by-step explanation:

Check the picture below.

\(3x+5=\cfrac{260-100}{2}\implies 6x+10=160\implies 6x=150 \\\\\\ x=\cfrac{150}{6}\implies x=25\hspace{9em}\stackrel{\measuredangle ABC}{3(25)+5}\implies 80^o\)

Answer:

Hope this helps you

Answer:

B

Step-by-step explanation:

Answer:

88

Step-by-step explanation:

Given,

Radius of a cylinder = 2 ft

Height of the cylinder = 7 ft

Therefore, volume of the cylinder

\( = \pi {r}^{2} h\)

\( = \frac{22}{7} \times 2ft \times 2ft \times 7ft\)

\(88 {ft}^{3} (ans)\)

Answer:

96

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors, assuming real numbers.

Step-by-step explanation: Simplify the radical by breaking the radicand up into a product of known factors, assuming real numbers.

Answer: 96

Answer:

DE

Step-by-step explanation:

D)9x + 6y = 3(3x + 2y)

E)9a + 6b + 3c = 3(3a + 2b + c)

there have the same concept

3*3x equals 9x and 3*3a is 9a

Answer:

3.6

Step-by-step explanation:

hey, how this helps and is right haha

The largest ratio, among the following ratios: 5/36, 2:9, 3 to 18, 1:3 is 1:3.

The ratio refers to the relative size of one quantity compared to another.

The ratio, which is the quotient of two quantities or values, can be expressed as a decimal, percentage, or fraction.  We can also express the ratio in its standard form (:).

Given   Sum of     Equivalent

Ratio     Ratios          Ratios

5/36        36         13.89% or 0.1389

2:9           11          18.18% or 0.1818

3 to 18     21          14.28% or 0.14.28

1:3            4           25% or 0.25

Thus, we can conclude that 1:3 is the largest ratio amont the others.

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Answer:

The width of the field is 49 yards and the length is 204 yards.

Step-by-step explanation:

Let the width be b.

Length = 8+4b

The perimeter of the rectangle = 506 yards

The perimeter of the rectangle is given by :

P=2(l+b)

So,

506=2(8+4b+b)

253 = 8+5b

245 = 5b

b = 49 yards

Length, l = 8+4b

= 8+4(49)

= 204 yards

So, the width of the field is 49 yards and the length is 204 yards.

The sky appears blue because of Rayleigh scattering while water appears blue due to selective absorption and scattering of light.

The blue color of the sky is a result of Rayleigh scattering which occurs when the Earth's atmosphere scatters shorter wavelengths of light (blue and violet) more efficiently than longer wavelengths (red and orange).

When sunlight enters the atmosphere, the blue light is scattered in all directions by the molecules and tiny particles present in the air creating the blue appearance of the sky.

Similarly, water appear blue due to selective absorption and scattering of light. Water molecules selectively absorb colors from the visible light spectrum and absorb longer wavelengths (such as red) more effectively than shorter wavelengths (such as blue).

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Answer:

lower left

Step-by-step explanation:

top left

∠ 1 and ∠ 2 are same- side exterior angles and sum to 180°

top right

∠ 1 and ∠ 2 are a linear pair and sum to 180°

lower left

∠ 1 and ∠ 2 are alternate interior angles and are congruent

Answer:

A. 19.1

the total measure of a triangle is 180°

118.6+42.3+x=180

160.9+x=180

x=180-160.9

x=19.1°