PLEASE HELP! this is probably easy, THANK YOU! please let me know if you can’t see properly it is a little hard to see thank you

Answer:

61

Step-by-step explanation:

The equation to represent the cost of each drink is 3(x + 2.5) + 3x = 25.50. The cost of each drink will be $3.

In the given question, it is stated that the family spent a total of $25.50 and they bought 3 Popcorn and 3 Drinks. Each popcorn costs $2.5 more than the drink. Now, suppose the cost of one drink is 'x' then we get:

Cost of 3 Drinks = 3x

Cost of 3 Popcorn = 3(x + 2.5)

The equation to represent this will be:

=>  3(x + 2.5) + 3x = 25.50

=>  3x + 7.5 + 3x = 25.50

=>  6x = 18

=>  x = 3

We get x = 3, Cost of one drink will be $3

Hence,  equation representing it will be 3(x + 2.5) + 3x = 25.50, and the cost of each drink will be $3

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Answer:

x + 2y = 5

Step-by-step explanation:

y = mx + b the m is the slope or gradient.  

y=2x+3  The slope is 2.

When lines are perpendicular,  the slopes are opposite inverses of each other.  So, the perpendicular slope to 2 is -1/2.  I would write the answer in the point slope of the line and then change the equation to the stand form

y -2 = -1/2(x -1)  Distribute the -1/2

y - 2 = -1/2x + 1/2  Add 1/2 x to both sides

1/2x + y -2 = 1/2  Add 2 to both sides

1/2x +y = 5/2  Multiply by 2 to clear the decimal

x + 2y = 5

Take 1 cm of 5th, 6th and 7th shelves, it comes out to be = 210

Now,

5 - 2 = 3 book in the shelves

6 - 3 = 3 book in the shelves

7 - 4 = 3 book in the shelves

3 books are in common, so, 210 - 3 = 207 book Lizzie have.

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Answer:

Step-by-step explanation:

TRUE

5 is a non-negative number

Conjecture : - 5 is a negative number

Answer:

xy(x² +5y)

Step-by-step explanation:

Rewrite 1/6x³y + 5/6xy² using a common factor.

To simplify, multiple each term by 6:

6 × (1/6x³y)  + 6 × (5/6xy²)

= [tex]x^{3} y+5xy^{2} \\[/tex]

take the common term xy and

= [tex]xy(x^{2} +5y)[/tex]

Answer:

oh k

Step-by-step explanation:

sure, I will!

9^(2-x) = 3 -> 2-x = 1/2

into details about why it is 1/2 (ill call 2-x as y for easier demonstration)

9^y = 3
(3^2)^y = 3

And we have : (x^m)^n = x^mn
-> (3^2)^y = 3^2y = 3
-> 2y = 1
y = 1/2, therefore 2-x = 1/2.

So, x = 2 - 1/2 = 3/2.

A force of 85 N is applied over an area of 530 cm2. Then the pressure on it is equal to 1603.8 [tex]\frac{N}{m^{2} }[/tex].

Force(F) = 85 N

Area(A) = 530 [tex]cm^{2}[/tex]

Pressure(P) = ?

Calculating as per the above amount

Area = 530/100 × 100

= 0.053 [tex]m^{2}[/tex]

The definition of pressure is "force applied per unit area." The equation P = FA, where F is the force acting perpendicular to surface area A, provides the answer. The pascal (Pa), or one newton per square meter, is the accepted unit of pressure [tex]\frac{N}{m^{2} }[/tex].

Pressure is the physical amount of force exerted on a particular area. The definition of pressure is "force per unit of area." The pressure being applied to a body can be calculated by taking the amount of force being applied and dividing it by the area of contact.

Pressure = force/area

= 85/0.053

= 1603.8 [tex]\frac{N}{m^{2} }[/tex]

Pressure on the body is 1603.8 [tex]\frac{N}{m^{2} }[/tex]

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The strategy used by Dr. Chang for the research study of undergraduate students is c. stratified sampling.

Stratified sampling can be defined as the type of sampling in which a population is divided into subpopulations and then random samples are taken from these subpopulations. These subpopulations or subgroups are also called strata.

The strategy used by Dr. Chang is stratified sampling because she divided all the undergraduate students into subgroups based on grade level and then from these subgroups she randomly selected 50 students.

Contrastingly, in simple random sampling, no subgroups are involved and the subset of individuals are chosen from a single large population randomly. On the other hand, quota sampling and accidental sampling are not a type of random sampling.

In cluster sampling, the subgroups are internally heterogeneous but in this case, the subgroups are internally homogenous as they are made based on grade level.

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Answer: this should be more then 5 coins

Step-by-step explanation:

Answer:

√2 is between the integers 1 and 2.

Answer:

m∠R = 72°

Step-by-step explanation:

As ΔPQR and ΔUVW are congruent, m∠R = m∠W.

Equate the expressions for the two angles and solve for x:

⇒ m∠R = m∠W

⇒ 10x - 18 = 8x

⇒ 10x - 18 + 18 = 8x + 18

⇒ 10x = 8x + 18

⇒ 10x - 8x = 8x + 18 - 8x

⇒ 2x = 18

⇒ 2x ÷ 2 = 18 ÷ 2

⇒ x = 9

Substitute the found value of x into the expression for m∠R:

⇒ m∠R = 10x - 18

⇒ m∠R = 10(9) - 18

⇒ m∠R = 90 - 18

⇒ m∠R = 72°

Therefore, m∠R = 72°.

Answer: 63.30769 or 823/13 or 63 4/13

823 divided by 13 = 63.307692

The result of 823/13 is a non-terminating, repeating decimal.

The repeating pattern above, 307692, is called repetend, and denoted overlined with a vinculum.

This notation in parentheses is also common: 823/13 = 63.(307692): However, in daily use it’s likely you come across the reptend indicated as ellipsis: 823 / 13 = 63.307692… .

823 divided by 13 in decimal = 63.307692

823 divided by 13 in fraction = 823/13

823 divided by 13 in percentage = 6330.76923077%

Answer:

568

Step-by-step explanation:

Using a z-score table, we see the minimum z-score is about 0.68.

Using the formula for the z-score,

[tex]\frac{x-500}{100}=0.68 \\ \\ x-500=68 \\ \\ x=568[/tex]

Answer: the answer is 6 and 7

Step-by-step explanation:

because never gonna give u up never gonna let  u down yessir

The proportional relationship between the number of centerpieces and the total cost for the centerpieces is graphed at the end of the answer.

A graph represents a proportional relationship if the output variable y in the y-axis is written as a product of the input variable x in the x-axis and the constant of proportionality k, as follows:

y = kx.

The constant k is called the slope of the unit rate of the situation, measuring by how much y changes when x changes by 1.

In the context of this problem, the cost of each centerpiece is of $5.50, hence the constant is given as follows:

y = 5.5x.

The number of centerpieces cannot be negative, hence the domain of the relation is given as follows:

x ≥ 0.

Considering this domain, the graph of the relation is given at the end of the answer.

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Answer:

[tex]\textsf{3.} \quad \dfrac{5}{6}x+ 10=y[/tex]

4.  See below.

[tex]\textsf{5.} \quad \dfrac{10}{3}x-2=y[/tex]

Step-by-step explanation:

Given equation:

[tex]\dfrac{1}{3}x-\dfrac{2}{5}y=-4[/tex]

[tex]\textsf{Add \;$\dfrac{2}{5}y$ \; to both sides}:[/tex]

[tex]\implies \dfrac{1}{3}x-\dfrac{2}{5}y+\dfrac{2}{5}y=-4+\dfrac{2}{5}y[/tex]

[tex]\implies \dfrac{1}{3}x=\dfrac{2}{5}y-4[/tex]

Add 4 to both sides:

[tex]\implies \dfrac{1}{3}x+4=\dfrac{2}{5}y-4+4[/tex]

[tex]\implies \dfrac{1}{3}x+4=\dfrac{2}{5}y[/tex]

[tex]\textsf{Multiply both sides by \; $\dfrac{5}{2}$}:[/tex]

[tex]\implies \dfrac{5}{2} \cdot \dfrac{1}{3}x+ \dfrac{5}{2} \cdot4=\dfrac{5}{2} \cdot \dfrac{2}{5}y[/tex]

[tex]\implies \dfrac{5}{6}x+ 10=y[/tex]

[tex]\boxed{\begin{minipage}{3cm}$\dfrac{1}{3}x-\dfrac{2}{5}y=-4\\\\\underline{\phantom{\dfrac{1}{3}x}+\dfrac{2}{5}y\phantom{=-4}\dfrac{2}{5}y}\\\\\dfrac{1}{3}x=\dfrac{2}{5}y-4\\\underline{+4 \phantom{)=3y}+4\phantom{)))))}}\\\\\dfrac{1}{3}x+4=\dfrac{2}{5}y\\\\\underline{\phantom{)}\times\dfrac{5}{2}\phantom{))))}\times \dfrac{5}{2}}\\\\\dfrac{5}{6}x+10=y$ \end{minipage}}[/tex]

See the attachment for the highlighted mistake.

The mistake Mike made is that he did not divide 10x by 3.

Given equation:

[tex]10x-3y=6[/tex]

Add 3y to both sides:

[tex]\implies 10x-3y+3y=6+3y[/tex]

[tex]\implies 10x=6+3y[/tex]

Subtract 6 from both sides:

[tex]\implies 10x-6=6+3y-6[/tex]

[tex]\implies 10x-6=3y[/tex]

Divide both sides by 3:

[tex]\implies \dfrac{10x}{3}-\dfrac{6}{3}=\dfrac{3y}{3}[/tex]

[tex]\implies \dfrac{10}{3}x-2=y[/tex]

[tex]\boxed{\begin{minipage}{3cm}$10x-3y=6\\\underline{\phantom{10x}+3y\phantom{=6}+3y}\\\\10x=3y+6\\\underline{-6 \phantom{)=3y}-6\phantom{)))))}}\\\\\dfrac{10x-6}{3}=\dfrac{3y}{3}\\\\\dfrac{10}{3}x-2=y$ \end{minipage}}[/tex]

The probability of randomly selecting an order and getting the order that is used in the spelling bee is 1/6

Here we have 6 possible arrangements:

3!=3*2*1

3!= 6

Hence, the probability of selecting an order and getting the order = 1/6.

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Answer:Company b

Step-by-step explanation: 41.10/15=2.74

48.96/18=2.72

35.92/12=2.99

The cost of each land is 120,000 dollars.

The mountain cabin on 1 acre of land costs 30,000 dollars.

The land cost 4 times as much as the cabin.

Therefore, the cost of each land can be calculated as follows:

cost of each land = 4 (30, 000)

cost of each land = 4 × 30000

cost of each land = 120,000 dollars

Therefore, the land that cost 4 times as much as the cabin cost 120000 dollars for each.

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In the given angle, the value of x is 18°.

So, first label the lines as A, B, C, and D as follows:

Refer to the image attached below.

Line DC cuts the angle ∠ADB in two parts, so the equation can be:

Now, solve for x as follows:

Therefore, in the given angle, the value of x is 18°.

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The x-intercepts of the function are 10, and -8.

y-intercept is: -80.

The zeros are: x = 10 and x = -8

f(2) = -80

f(x) = -65 when x = 5 or -3.

The y-intercept of a function is the output (y) when the input value (x) is zero. On the other hand, the x-intercept is the input value (x), when the output value (y) is zero.

The zeros of a function are the x-intercepts of a function.

Given the function, f(x) = x² - 2x - 80, substitute f(x) = 0 to find the value of x, which is the x-intercept:

0 = x² - 2x - 80

x² - 2x - 80 = 0

Factorize

(x - 10)(x + 8)

x = 10 or x = -8

Substitute x = 0 into the function to find the y-intercept:

f(0) = 0² - 2(0) - 80

f(0) = -80

x-intercepts are 10, and -8.

y-intercept is: -80.

The zeros are: x = 10 and x = -8

Find f(2):

f(2) = (2²) - 2(2) - 80,

f(2) = 4 - 4 - 80

f(2) = -80

Find x when f(x) = -65:

-65 = x² - 2x - 80

-65 + 80 = x² - 2x

15 = x² - 2x

x² - 2x  - 15 = 0

Factorize

(x - 5)(x + 3) = 0

x = 5; x = -3

Therefore, f(x) = -65 when x = 5 or -3.

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The Number system from least to greatest of the given number 8.116, 8.119, 8.18, 8.03, 8.14, 8.1 is 8.03 ,  8.1,  8.116, 8.119, 8.14, 8.11.

We were given the number 8.116, 8.119, 8.18, 8.03, 8.14, 8.1 so that we can arrange them from the smallest number to the highest number.

The first number will be 8.03 , then follow by 8.1, the after that we can see that the next number will be 8.116, which will be followed by the number 8.14, then this will be followed by 8.119 then followed by the number 8.18.

Therefore, the arrangement will be  8.03 ,  8.1,  8.116, 8.119, 8.14, 8.11.

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The distance between the two points (2, 6) and (7, -6) will be 13 units.

Let one point be (x, y) and another point be (h, k). Then the distance between the points will be

D² = (x - h)² + (y - k)²

A right triangle with the two points forming the hypotenuse. The two points are given below.

(2, 6) and (7, -6)

Then the distance between the points (2, 6) and (7, -6) will be given as,

D² = (7 - 2)² + (-6 - 6)²

D² = 5² + (-12)²

D² = 25 + 144

D² = 169

D = 13 units

The distance between the two points (2, 6) and (7, -6) will be 13 units.

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The method that can not be used to prove that lines i and k are parallel is the statement "shows that both lines are perpendicular to a third line".

and the measures of the other three angles are 60°, 60°, and 120°

Interior angles are defined as the pair of angles created on the inner side of the parallel lines and on the opposite sides of the transversal when two parallel lines are intersected by a transversal are referred to as alternate internal angles

The method that can not be used to prove that lines i and k are parallel is the statement "shows that both lines are perpendicular to a third line".

Lines l and k intersect forming two pairs of vertical angles. If one of these angles measures 120°,

As per the given question,

Let angle ∠1 is 120°

here angles ∠1 and ∠2 are supplementary

So  ∠2 = 180° - 120° = 60°

However, if a transversal intersects two parallel lines, then each pair of alternate interior angles is equal.

∠2 = ∠4 = 60°

∠1 = ∠3 = 120°

Therefore, the measures of the other three angles are 60°, 60°, and 120°.

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The equilateral triangular prism has a surface area of 1997.321 square inches

From the question, the given parameters are

The total surface area of an equilateral triangular prism is calculated using the following formula

Surface area = a(√3/2) + 3(a × h);

Substitute the known values in the above equation

So, we have the following equation

Surface area = 20 * (√3/2) + 3(20 × 33);

Evaluate the product

So, we have the following equation

Surface area = 1997.321

Hence, the surface area of the equilateral triangular prism is 1997.321 square inches

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