Joseph is shopping for school supplies. The store is selling 4 notebooks for $5. Joseph needs to buy 5 notebooks. How much will it cost? Explain how you found your answer.

Answer:

see below

Step-by-step explanation:

Because the area of the square is 36 its side is 6 meaning the circle has a diameter of 6. This means that its radius is 3 so its area is 3² * π = 9π.

Answer:

Firstly, since KLMN is a parallelogram, side KL is parallel to NM, and KN is a transversal. By the Same-Side Interior Angle Theorem, we know that angles K and N sum up to 180 degrees. We can use this to form an equation where 7x + 12 + 4x + 3 = 180. Now we simplify this equation to 11x + 15 = 180. Now, we can subtract 15 from both sides of this equation and isolate the x variable by dividing both sides of this equation by 11, to get x = 11. Now we can substitute the value of x into our original expressions. So we get 7(11) + 12 = 89 and 4(11) + 3 = 36.

Step-by-step explanation:

Please support my answer.

Answer:

x = 1.0625

Step-by-step explanation:

2 + 0.5 (1.25) = 4.75 - 2x

2 + 0.625 = 4.75 - 2x

2.625 = 4.75 - 2x

2.625 + 2x = 4.75

2x = 4.75 - 2.625

2x/2 = 2.125/2

x = 1.0625

Answer:

x = 22/21 in fraction

simplified answer : x = 1 1/21

Step-by-step explanation:

So,Let Angle 1 be x, Angle 2 be 2x, Angle 3 be 6x...

Now,

Angle 1 + Angle 2 + Angle 3 = 180°

x + 2x +6x = 180°

x + 8x = 180°

9x = 180°

x = 180°/9

x = 20°

Therefore,

So, 20°,40°,120° are the 3 angles of the triangle..

hope it helps!!!

(~‾▿‾)~(~‾▿‾)~(~‾▿‾)~

Answer:2.94

Step-by-step explanation:2.80*1.05=2.94

Answer:

THAWING producing pressure on Pipes

Step-by-step explanation:

As more water fills and freezes the pressure on the pipes also increases and it gets much denser causing it to burst

Answer:

n = 37/3

n = 12  1/3

Step-by-step explanation:

Hi there !

3n - 7 = 30

3n = 30 + 7

3n = 37

n = 37/3

n = 12  1/3

Good luck !

Answer:

2x,5x

Step-by-step explanation:

thats right I am not smart

Answer:

(x,y) = ( -6,8)

Step-by-step explanation:

waiting for brainlist

Answer:

company 1 final price: $148.5

company 2 final price: $168

company 3 final price: $132

thus, the best choice is company 3 because it costs the least and all services are the same

Step-by-step explanation:

company 1 is offering 25% off the price of their service

company 2 is offering $30 off the price of their service

company 3 is offering a 1/3 discount off the price of their service

the price of the cleaning is $198

company 1: 25% discount = 75% of the original price $198, which would be $198 * 3/4, or $148.5

company 2: $30 dollars off, which means $198 - $30 or $168

company 3: 1/3rd discount, meaning the product after the discount is only 2/3rd of the original price. 2/3rd of $198 is $132, so the final price after the discount is $132

Answer:

Perimeter: 26 units

Area: 24 units²

Step-by-step explanation:

12 + 9 + 5 = 26

A = 1/2BH

A = 1/2 12(4)

A = 1/2 48

A = 24

Answer:

x = 13

Step-by-step explanation:

23 - 9 = 14

14 / 2 = 7

So both sides should equal to 7.

Set the two expression equal to each other and solve.
x - 6 = 2x - 19

move the 6 to the other side by adding

x = 2x - 19 + 6

x = 2x - 13

then move 2x to the other side by subtracting

x - 2x = -13

-x = -13

divide both sides by -1 to get x

x = -13/-1

x = 13

Check.
plug 13 in for x

x - 6

13 - 6 = 7

2x - 19

2(13) - 19

26 - 19 = 7

so both expressions are equal to each other now and

7 x 2 = 14

14 + 9 = 23

thus x = 13

Answer:

b.) II,III AND IV

Step-by-step explanation:

The order of the letters is important. The middle letter is always the one inside the angle, so I cannot be right. That rules out c and d.

Answer:

B. 40 percent

Step-by-step explanation:

First take the new price minus the original price

175-125

50

Divide by the original price

50/125

.4

Multiply by 100%

.4 *100% = 40%

Answer:

±5

Step-by-step explanation:

Given equation ,

=> x² - 25 = 0

=> x² - 5² = 0

=> ( x +5)(x-5) = 0

=> x = ±5

Answer:

x = -5 or 5

Step-by-step explanation:

→ Factor the quadratic

( x + 5 ) ( x - 5 )

→ Equate each bracket to 0

x + 5 = 0 and x - 5 = 0

→ Solve each for x

x = -5 or 5

The correct statement among the given options is A. "Research cannot use both qualitative and quantitative methods in a study."

This statement is not correct because research can indeed use both qualitative and quantitative methods in a study. Qualitative research focuses on collecting and analyzing non-numerical data such as observations, interviews, and textual analysis to understand phenomena in depth. On the other hand, quantitative research involves collecting and analyzing numerical data to derive statistical conclusions and make generalizations.

Many research studies employ a mixed methods approach, which combines both qualitative and quantitative methods, to provide a comprehensive understanding of the research topic. By using both qualitative and quantitative data, researchers can gather rich insights and statistical evidence, allowing for a more comprehensive analysis and interpretation of their findings.

Therefore, option A is the statement that is not correct concerning qualitative and quantitative research.

for such more question on qualitative

https://brainly.com/question/24565171

#SPJ8

Answer: 3

Step-by-step explanation:

We can solve this problem by recognizing that z is the geometric mean of 9 and 9+4. This property is outlined in the following formula:

\(\frac{hypotenuse}{leg}=\frac{leg}{part}\)

where hypotenuse is the longest side of the triangle, leg is the side of the triangle we are calculating for, and part is the part of the hypotenuse on the side of the leg.

Here, the hypotenuse is 13, or 4 + 9. The leg is z, as it is the side of the triangle we are trying to find. Finally, the part is 9. It is the part of the hypotenuse that is on the side of the leg.

Let's plug in these values:

\(\frac{13}{z}=\frac{z}{9}\\117=z^2\\z=\sqrt{117}\)

117 is the product of 9 and 13. Since 9 is a perfect square, we can take it out from the square root.

\(z=\sqrt{9*13}\\z=\sqrt{9}*\sqrt{13}\\z=3\sqrt{13}\)

The "?" must be a 3.

There are 64 chocolate bars and 24 gummies in the bowl of candy.

Let's denote the number of chocolate bars as "x" and the number of gummies as "y".

According to the given ratio, the ratio of chocolate bars to gummies is 8:3, which can be expressed as:

x/y = 8/3

We also know that the total number of pieces of candy in the bowl is 88:

x + y = 88

To solve this system of equations, we can use substitution or elimination method. Here, we will use the substitution method:

From the first equation, we can isolate "x" in terms of "y" by multiplying both sides by "y":

x = (8/3)y

Substituting this expression for "x" in the second equation, we have:

(8/3)y + y = 88

Combining like terms:

(8/3 + 1)y = 88

(11/3)y = 88

To isolate "y", we can multiply both sides by the reciprocal of (11/3), which is (3/11):

y = (88 * 3) / 11

y = 264/11

y = 24

Substituting this value of "y" back into the second equation, we can find "x":

x + 24 = 88

x = 88 - 24

x = 64

Therefore, there are 64 chocolate bars and 24 gummies in the bowl of candy.

for such more question on number

https://brainly.com/question/859564

#SPJ8

The difference in the proportion of males and the proportion of females that smoke is 0.08

In a sample of 61 males, 15 smoke, while in a sample of 48 females, 8 smoke.

The given parameters are:

                             Male           Female

Sample                  61                  48

Smokers               15                   8

The proportion is calculated using:

p = Smoker/Sample

So, we have:

Male = 15/61 = 0.25

Female = 8/48 = 0.17

The difference is then calculated as:

Difference = 0.25 - 0.17

Evaluate

Difference = 0.08

Hence, the difference in the proportion of males and the proportion of females that smoke is 0.08

Read more about proportion at:

https://brainly.com/question/16828793

#SPJ12

Answer:

The rate of change in gasoline is 0.2$ per month.

Step-by-step explanation:

Given that Gas prices have increased steadily from $2.35 per gallon to $3.95 per gallon in 8 months.

Increase 'steadily' means the rate of change is the same throughout the 8 months.

let x represents the time in months, and y represents the gas price

so

at x₁ = 0, y₁ = 2.35

at x₂ = 8, y₂ = 3.95

Let us find the slope or rate of change using the formula

Rate of change = slope = m = [y₂ - y₁] / [x₂ - x₁]

                                              = [3.95 - 2.35] / [8 - 0]

                                               = 1.6 / 8

                                               = 0.2 $ per month

Therefore, the rate of change in gasoline is 0.2$ per month.

Answer:

12

Step-by-step explanation:

5(x+3) = 3(2x-1)

5x+15 = 6x-3

15-3 = 6x-5x

12 = x

x = 12

The number should be 12.

Given that,

Based on the above information, the following equation should be made:

5(x+3) = 3(2x-1)

5x+15 = 6x-3

15-3 = 6x-5x

12 = x

x = 12

Therefore we can conclude that the number is 12.

Learn more: brainly.com/question/17429689

Answer:

544

Step-by-step explanation:

The derivative of \(r\) with respect to \(\theta\) can be found using the chain rule. Let's proceed with the differentiation:

\frac{dr}{d\theta} = \frac{d}{d\theta}\left(\cos\left(\frac{\theta}{3}\right)\right)

To differentiate \(\cos\left(\frac{\theta}{3}\right)\), we treat \(\frac{\theta}{3}\) as the inner function and differentiate it using the chain rule. The derivative of \(\cos(u)\) with respect to \(u\) is \(-\sin(u)\), and the derivative of \(\frac{\theta}{3}\) with respect to \(\theta\) is \(\frac{1}{3}\). Applying the chain rule, we have:

\frac{dr}{d\theta} = -\sin\left(\frac{\theta}{3}\right) \cdot \frac{1}{3}

Now, let's evaluate this derivative at \(\theta = \pi\):

\frac{dr}{d\theta} \bigg|_{\theta=\pi} = -\sin\left(\frac{\pi}{3}\right) \cdot \frac{1}{3}

The value of \(\sin\left(\frac{\pi}{3}\right)\) is \(\frac{\sqrt{3}}{2}\), so substituting this value, we have:

\frac{dr}{d\theta} \bigg|_{\theta=\pi} = -\frac{\sqrt{3}}{2} \cdot \frac{1}{3} = -\frac{\sqrt{3}}{6}

Therefore, the slope of the tangent line to the polar curve \(r = \cos(\theta / 3)\) at the point specified by \(\theta = \pi\) is \(-\frac{\sqrt{3}}{6}.

Learn more about Tangent Line here :

https://brainly.com/question/31179315

#SPJ11

For a catering company, which used the linear function for calculating the total cost of parties, the cost to cater a dinner party with 90 guests is equals to the $42750.

We have a table form data of total cost of parties for a catering company. There is use of linear function to determine total cost of parties. Table look like as below,

Cost for dinner parties | number of guests

(each guest)

$315 30

$555 60

We have to determine the cost to cater a dinner party with 90 guests. For this we use simple multiplication arithmetic method. As we see in table, cost of cater a dinner party with 30 guests = $315 for each , that is cost for one guest = $315

so, cost of cater a dinner party with 30 guests = 30 × $315 = $ 9450

Similarly, when number of guests is 60 in count, cost of cater a dinner party = $555 for each one

So, total cost of cater a dinner party with 60 guests = 60× $555 = $ 33300

Now, we have total guest = 90

The cost to cater a dinner party with 90 guests

= cost to cater a dinner party with 30 guests + cost to cater a dinner party with 60 guests = $9450+ $33300

= $42750

Hence, required value is $42750.

For more information about linear function, visit :

https://brainly.com/question/15602982

#SPJ4

The value of the given expression [\(87^3+ 13^3/87^2 -87 * 13 + 13^2\)] by simplifying the numerator and denominator using suitable identities is 100.

We will first calculate the numerator:

As  (\(a^3\) + \(b^3\)) = (a + b)(\(a^2\) - ab + \(b^2\)) :

\(87^3\) + \(13^3\) = (87 + 13)(\(87^2\) - \(87 * 13\) + \(13^2\))

= 100(\(87^2\) - 87 * 13 + \(13^2\))

Now, calculate the denominator:

\(87^2 - 87 * 13 + 13^2\)

As,(\(a^2 -2ab +b^2\)) =\((a - b)^2\):

\(87^2 - 87 * 13 + 13^2 = (87 - 13)^2\)

\(= 74^2\)

So by solving the equation further:

\((87^3+13^3) / (87^2- 87 * 13+13^2) = 100*(87^2- 87 *13 + 13^2)/(87^2 - 87 * 13 + 13^2)\)

As we can see the numerator and denominator are the same expressions (\(87^2 - 87 * 13 + 13^2\)). so, they cancel each other:

\((87^3 + 13^3) / (87^2 - 87 * 13 + 13^2) = 100\)

So, the value of the given expression is 100.

To know more about the expression:-

https://brainly.com/question/14083225

Answer: 15 miles per gallon

Answer:

5√3+3√5

Step-by-step explanation:

Hey there! I will make your learning easier and clearer! If you have any doubts, please ask in comment and I will answer all your doubts!

We are given the surd expression:

\( \displaystyle \large{9 \sqrt{3} - 4 \sqrt{3} + \sqrt{5} + 2 \sqrt{5} }\)

If surds are same, we can combine them.

\( \displaystyle \large{5\sqrt{3} + 3 \sqrt{5} }\)

And we are done!

Wait, but if you do not get it, don't worry, I've got you!

So let's say that these surds are merging number, if two have same surds, they can combine with each others.

Story (Math Purpose / Learning)

9: Hey, 4! What surds do you have?

4: I have √3, what about you?

9: Same! I have √3 too!

4: That's great! We can now form a new value!

9 and 4 then fused and became new value, which was 5√3, came from 9-4 = 5 and them having surd of √3.

Meanwhile, with 5 and 1

2: 1, why are you invisible?

1: I thought no one could see me?!

2: I assume that we have same surds. Maybe this power of same surd allows me to see and fuse with you.

1: sighs Okay, let's fuse!

2 and 1 then fused and became a new value which was 3√5, came from 2+1 and them having surd of √5.

Answer:24-25a

Step-by-step explanation:

To find dz/dt using the chain rule, we need to calculate the derivatives of z with respect to x and y separately, and then multiply them by the derivatives of x and y with respect to t.

Given:

z =  \(cosh^{2} (xy)\)

x = (1/2)t

y = \(e^{t}\)

Let's start by finding the partial derivatives of z with respect to x and y:

∂z/∂x = \(2cosh(xy) * sinh(xy) * y\)  (using the chain rule)

∂z/∂y = \(2cosh(xy) *sinh(xy)*x\)    (using the chain rule)

Next, let's find the derivatives of x and y with respect to t:

dx/dt = 1/2

dy/dt = \(e^{t}\)

Finally, we can use the chain rule to find dz/dt:

dz/dt = (∂z/∂x)(dx/dt) + (∂z/∂y)(dy/dt)

      = \(2cosh(xy) *sinh(xy)*y*(1/2) + 2cosh(xy)*sinh(xy)*x*e^{t}\)

Now, substitute the given expressions for x and y:

\(dz/dt = 2cosh((1/2)t*e^{t} * sinh((1/2)t*e^{t} *(1/2)* + 2cosh((1/2)t*e^{t} *sinh((1/2)t*e^{t} *((1/2)t)\)

Simplifying further, we have:

\(dz/dt = cosh((1/2)t*e^{t} *sinh((1/2)t*e^{t})* e^{t} + cosh((1/2)t* e^{t}*sinh((1/2)t*e^{t}* ((1/2)t)\)

This is the expression for dz/dt using the chain rule with the given values of x and y.

To know more about chain rule refer here:

https://brainly.com/question/31585086?#

#SPJ11