Miss Jones is buying erasers for her students. She already has 12 in her desk and needs a total of 50 erasers. They are sold in packs of 6. Write an equation to show how many more packs of erasers she needs.

Step-by-step explanation:

a variable is a quantity that may change within the context of a mathematical problem or experiment

I hope this was helpful

The true statement about the axis of rotation is the option;

It is parallel to a side of the equilateral triangle, but is separate from the equilateral triangle.

The axis of rotation is a straight line around which all points on a rotating body rotates.

The diagram shows a figure with a hollow cylindrical cross section and triangular cross section on the left and right, which indicates that the figure is created by the rotation of the equilateral triangle about height of the cylinder, such that the axis of rotation is a vertical line through the center of the hollow cylinder. Therefore, the axis of rotation is parallel to the height of the cylinder, and therefore, it is parallel to the base of the equilateral triangle, but it it seperate from walls of the cylinder, and therefore, separate from the equilateral triangle

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Answer: Hi!

The equation for inverse proportion is x y = k or x = k/ y.

When finding the value of the constant k, you can use the known values and then use this formula to calculate all of the unknown values.

Hope this helps!

Answer:

-5

Step-by-step explanation:

(i^2) = -1 so -1 -1 + 3x = 3x - 2. If x = i^2 = -1, then 3x = -3. -3 - 2 = -5

Answer:

Step-by-step explanation:

t(-7)= 3(-7)= -21

s(-21)= 2-(-21)= 2 + 21= 23

\(\huge\text{Hey there!}\)

\(\large\text{Select all the expressions equivalent to }\mathsf{2.8^4}\)

\(\large\text{Exponents is a number that is being said how many times to use}\\\large\text{when you are multiplying}\)

\(\large\text{Now lets try to solve for your answer(s)}\)

\(\bold{2.8^4 = 2.8\times2.8\times2.8\times2.8}\\\bold{2.8\times2.8\times2.8\times2.8}\\\bold{2.8\times 2.8 = 7.84}\\\bold{7.84\times7.84= answer}\\\uparrow\large\text{Solve above and you should have one of your answers!}\\\bold{\rightarrow 7.84\times7.84= 61.4656}\)

\(\bold{2.8^4\ is\ EXPRESSED\ approximately\ 4\ times}\\\\\bold{\rightarrow 2.8^4= 2.8\times2.8\times 2.8\times2.8}\)

\(\boxed{\boxed{\large\text{Answer: \underline{\bf{Option E.) 2.8 * 2.8 * 2.8 * 2.8 \& Option F. 61.4646}}}}}\huge\checkmark\)

\(\textsf{Good luck on your assignment and enjoy your day!}\)

~\(\frak{Amphitrite1040:)}\)

The value of CE is 14.7 units.

The diameter of a given circle is a straight line which passes through the center of the circle and divides it into two equal semi-circles.

So that in the given circle with center A, we have;

CE = BD  (diameter of a given circle)

BA = EA = CA = DA    (radius of a given circle)

CE is the diameter of the circle, and BA is the radius, so that;

CE = 2*BA

     = 2*7.35

     = 14.7

CE = 14.7

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They can buy 120 vans, 60 small trucks, and 80 large trucks.

The truck company plans to spend 10 million on 260 vehicles. Each commercial van cost 25,000 dollars. Each small truck 50,000 dollars and each large truck 50,000 dollars. They needed twice as many van as small truck

Therefore,

let

s = number of small truck

number of van = v

let

l = number of large truck

v + s + l = 260

25,000(v) + 50,000(s) + 50,000(l) = 10,000, 000

v + 2s + 2l = 400

Hence,

v = 2s

So,

2s + 2s + 2l = 400

4s + 2l = 400

2s + s + l = 260

3s + l = 260

2s + l = 200

s = 60

l = 200 - 2(60)

l = 200 - 120

l = 80

v = 2(600 = 120

Therefore, they can buy the following:

number of small truck = 60

number of van = 120

number of large truck = 80

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Therefore demand is "decreased by 100 units".

What is predicted value in regression?

Given the values of X, we can predict the values of Y using the regression line. We go directly up to the line for any given value of X, then move horizontally to the left to get the value of Y. The expected value of Y is abbreviated Y' and is known as the predicted value of Y.

\($$\begin{aligned}& \hat{y}=130-20 x \\& \hat{y}=\text { demand of product } \\& x=\text { price of product }\end{aligned}$$\)

Given \($x$\), increased by 5 units

\($$\begin{aligned}& \hat{y}=130-20(x+5)=130-20 x-100 \\& \hat{y}=30-20 x\end{aligned}$$\)

Therefore demand is "decreased by 100 units"

Complete question: Regression analysis was applied between demand for a product (y) and the price of the product (x), and the following estimated regression equation was obtained. ŷ = 130 − 20x Based on the above estimated regression equation, if price is increased by 5 units, then demand is expected to: increase by 100 units. decrease by 20 units. increase by 130 units. decrease by 100 units.

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Answer:

18

Step-by-step explanation:

3x6 = 18

Answer:

The chord is bisected

Step-by-step explanation:

The chord of a circle is a segment whose endpoints are on the circle. when a perpendicular bisector ( the radius) of any chord passes through the center of the chord at right angle to the chord, the chord is bisected into two. This is a way or could give us a good way to find the center of any circle.

     kindly find attached a diagram for your reference

Answer:

B

Step-by-step explanation:

Answer:

4/10 but simplified = 2/5

Step-by-step explanation:

Add the marbles up, there are 4 green, so it's 4/10

But if you simplify it, it would be 2/5

I hope this helped!

Answer: y=7, x=2

Step-by-step explanation:

∠Q+∠P=180° (∠s between 2 // lines)

97°+(12y-1)°=180°

12y-1=83°

12y=84

y=7

5x+6=8x (Iso triangle)

x=2

Whwn the line of sight from the park ranger station, P, to the lifeguard chair, L, the length of PL is 0.76 miles.

It should be noted that since the line of sight from the park ranger station, P, to the lifeguard chair, L, on the beach of a lake is perpendicular to the path joining the campground, C, and the first aid station, F, then the path from the park ranger station to the lifeguard chair is the hypotenuse of a right triangle with legs of 0.35 miles and 0.65 miles.

The Pythagorean theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the legs. Therefore, the length of PL is equal to:

= ✓(0.35² + 0.65²)

= 0.76 miles.

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Answer:

x = 9 , y = 12

Step-by-step explanation:

Solve the following system:

{4 y - 5 x = 3

x = 2 y - 15

Hint: | Perform a substitution.

Substitute x = 2 y - 15 into the first equation:

{4 y - 5 (2 y - 15) = 3

x = 2 y - 15

Hint: | Expand the left-hand side of the equation 4 y - 5 (2 y - 15) = 3.

4 y - 5 (2 y - 15) = 4 y + (75 - 10 y) = 75 - 6 y:

{75 - 6 y = 3

x = 2 y - 15

Hint: | Choose an equation and a variable to solve for.

In the first equation, look to solve for y:

{75 - 6 y = 3

x = 2 y - 15

Hint: | Isolate terms with y to the left-hand side.

Subtract 75 from both sides:

{-6 y = -72

x = 2 y - 15

Hint: | Solve for y.

Divide both sides by -6:

{y = 12

x = 2 y - 15

Hint: | Perform a back substitution.

Substitute y = 12 into the second equation:

{y = 12

x = 9

Hint: | Sort results.

Collect results in alphabetical order:

Answer: {x = 9 , y = 12

The exact volume of the waffle ice cream cone is 114.75π square inches

From the question, we are to determine the volume of the waffle ice cream cone

The volume of a cone can be calculated by using the formula,

V = 1/3πr²h

Where V is the volume

r is radius

and h is the height

From the given information,

Diameter = 9 in

∴ Radius, r = 9/2 in = 4.5 in

h = 17 in

Putting the parameters into the formula, we get

V = 1/3 × π × 4.5² × 17

V = 114.75π square inches

Hence, the volume is 114.75π square inches

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Answer:

Step-by-step explanation:

The sine of an angle is equal to the cosine of its complement, and vice versa.

  sin ∠QOP = cos ∠ROQ

  cos ∠ROQ = sin ∠QOP

Answer:

615,000

Step-by-step explanation:

The exponent is 5, making it 10 to the power of 5. As the exponent is positive, the solution is a number greater than the origin or base number. To find our answer, we move the decimal to the right 5 time(s):

6.15

I hope i am right. If i am please mark me as brainliest.

The equation for the total cost of all adult tickets (a) and student tickets (s).

4a + 2.5s = 2,820  

a + s = 900

The number of adults ticket and student tickets is 380 and 520.

We have,

Adults ticket cost = $4

Student ticket cost = $2.5

Now,

Total amount earned = $2,820

The equation for the total cost of all adult tickets (a) and student tickets (s).

4a + 2.5s = 2,820   ______(1)

And,

The number of tickets sold = 900.

We can write as equation as:

a + s = 900 ______(2)

Now,

We have two equations.

4a + 2.5s = 2820

a + s = 900

Solving for s.

s = 900 - a

Substituting in (1)

4a + 2.5(900 - a) = 2820

Simplifying and solving for a.

4a + 2250 - 2.5a = 2820

1.5a = 570

a = 380

Now,

a + s = 900

380 + s = 900

s = 520

Therefore,

The number of adults ticket and student tickets is 380 and 520.

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If the calculated Cp and Cpk values are greater than 1, the process is considered capable. If Pp and Ppk are greater than 1, the process is considered capable.

To calculate Cp, Cpk, Pp, and Ppk using MINITAB, you would need to input the data into the software and run the appropriate statistical analysis.

Cp and Cpk are measures of a process's capability, they are calculated as follows:

Where,

Pp and Ppk are similar to Cp and Cpk, but they are calculated using the range of the data instead of the standard deviation.

Where R is the range of the data.

If the calculated Cp and Cpk values are greater than 1, the process is considered capable. If Pp and Ppk are greater than 1, the process is considered capable.

It is worth noting that Capability analysis can only be performed on stable and in-control processes. If the process is not in control, analyzing process capability is not meaningful.

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;ertwe rtwer tiouwertuweriot werltjwelrt we

Answer:

Circle 1: 37.68 ft

Circle 2: 28.26 cm

The equation that the clerk can use to calculate their total bill is t + g.

From the information given, Yasuda family bought a toy that cost t dollars and a game that cost g dollars.

The equation to calculate their total bills will be:

= t + g

where,

t = cost of toy

g = cost of game.

In this case, the equation that the clerk can use to calculate their total bill is t + g .

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Answer:

285 square centimeters

Step-by-step explanation:

Make sure all the units are the same and consistent

This figure is a Prism where the Base shape is a combination of a rectangle and an isosceles triangle

Area of a rectangle = Length × Breadth

Area of a triangle = \(\frac{1}{2}\) × (Base of triangle) × (Perpendicular height of triangle)

The perpendicular height of 4 cm divides the isosceles triangle into two equal right-angled triangles. The length of slant height of the right-angled triangle can be determined using the Pythagorean Theorem:

hyp = Hypotenuse = Slant height

opp = Opposite = 4 cm

adj = Adjacent = 8 cm

\(hyp^{2} = opp^{2} + adj^{2}\)

\(hyp^{2} = 4^{2} + 4^{2}\)

\(hyp^{2} = 16 + 16\)

\(hyp^{2} = 32\)

\(\sqrt{hyp^{2}} = \sqrt{32}\)

∴hyp = Slant height = \(\sqrt{32}\) cm

Every face of this figure has to be analyzed carefully while calculating the Surface Area:

Front and Back Faces = 2 × [Area of rectangle + Area of triangle]

                                      =  2 × [(6 × 8) + (\(\frac{1}{2}\) × 8 × 4)]

                                      = 2 × [48 + 16]
                                      = 2 × 64

                                      = 128 square centimeters

Left and Right Faces =

                                   2 × [Area of top rectangle + Area of bottom rectangle]
                               =  2 × [(5 × 6) + (5 × \(\sqrt{32}\))

                               = 2 × [\(30 + 5\sqrt{32}\)]
Expand the parenthesis using the Distributive Law:

                               = \((2)(30) + (2)(5\sqrt{32})\)
                               = (\(60 + 10\sqrt{32}\)) square centimeters

Bottom Face =  Area of rectangle

                      = 8 × 5

                      = 40 square centimeters

∴Total Surface Area of this figure = (128 + 60 + \(10\sqrt{32}\) + 40) \(cm^{2}\)

                                                          = (228 + \(10\sqrt{32}\)) \(cm^{2}\)

                     = 285 square centimeters (Rounded to 3 significant figures)

With compound interest of 6% paid semiannually, a deposit of $900 would result in $1,191.02 after 5 years, while simple interest would earn $270, resulting in a total of $1,170.

To calculate the future value of an investment with compound interest, we can use the following formula:

FV =\(PV * (1 + r/n)^{(n*t)}\)

where FV, PV, r, n and t is the future value, present value, annual interest rate, number of compounding periods per year and number of years respectively.

In this case, the present value (PV) is $900, the annual interest rate (r) is 6%, and the interest is compounded semiannually, so there are 2 compounding periods per year (n=2). The period (t) of investment  is 5 years.

Using these values, we can calculate the future value (FV) as follows:

FV = \(\$900 * (1 + 0.06/2)^{(2*5)\)

= \(\$900 * (1.03)^{10\)

= $1,191.02

Therefore, the future value of the investment after 5 years with compound interest would be $1,191.02.

If the interest were simple interest instead of compound interest, the calculation would be simpler. Simple interest is calculated as follows:

I = P x r x t

where I is the interest, P is the principal or present value, r is the interest rate, and t is the time period.

In this case, the interest rate is still 6% and the investment period is still 5 years, but the interest is calculated only on the principal amount of $900. Therefore, the interest earned would be:

I = $900 x 0.06 x 5

= $270

Therefore, the total amount after 5 years with simple interest would be the sum of the principal and the interest earned, which is:

Total = $900 + $270

= $1,170

Therefore, if the interest were simple interest instead of compound interest, the total amount after 5 years would be $1,170, and the interest earned would be $270.

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Answer:

The youngest Eva could be by the end of 2022 is 40 years old.

Step-by-step explanation:

The previous years in which there were three identical digits were 1919 and 2002.

If Eva was alive in 1919, she would have been at least 103 years old by the end of 2022.

If Eva was alive in 2002, she would have been at least 20 years old by the end of that year, and at least 40 years old by the end of 2022.

Since this is the third time Eva has lived through such a year, she must have been alive in 2002. Therefore, the youngest Eva could be by the end of 2022 is 40 years old.

Answer:

The youngest Eva could be by the end is 40 years

Answer:

30 markers

Step-by-step explanation:

We need to divide 24 by 8 to find how many packs of 10 markers we can buy, this gets us 3 packs of 10 markers. I hope this helps!