if i have 12 cupcakes and i have to take away 80% how many cupcakes do you have

The amount of fish needed to be served is 294 lbs

From the question, we have the following parameters that can be used in our computation:

Meat to be served: 3.5 pounds fish fillet

Number of guests: 84

The amount of fish needed is calculated using the following equation

Amount of fish = Number of guests x Meat to be served

Substitute the known values in the above equation, so, we have the following representation

Amount of fish = 84 * 3.5

Evaluate the products

Amount of fish = 294

Hence, the amount needed is 294 pounds

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Possible question

Perform the following food service calculation.

Meat to be served: 3.5 pounds fish fillet

Number of guests: 84

How much fish is needed?

____lbs.

Answer: (x+1)(x+4) is the solution

Step-by-step explanation:

Use the sum-product pattern

Common factor from the two pairs

Rewrite in factored form

Answer:

(x+1)(x+4)

Step-by-step explanation:

x²+5x+4

x²+4x+x+4

x(x+4)+1(x+4)

(x+1)(x+4)

Answer:

The correct graph is shown below.

Hope this helps!

The amount of caffeine in her body on the 1st day is, 2.4 mg

The amount of caffeine in her body on the 2nd day is, 4.8 mg

The amount of caffeine in her body on the 3rd day is, 7.2 mg

Given, Jada drinks a cup of tea every morning at 8:00 am. for 14 days. There is 40 mg of caffeine in each cup of tea she drinks. 24 hours after she drinks the tea, only 6% of the caffeine is still in her body.

So, the amount of caffeine in her body on the 1st day is,

40×6/100

24/10

= 2.4 mg caffeine

The amount of caffeine in her body on the 2nd day is,

= 2× 2.4

= 4.8 mg caffeine

The amount of caffeine in her body on the 3rd day is,

= 3× 2.4

= 7.2 mg caffeine

Hence, The amount of caffeine in her body on the 1st day is, 2.4 mg

The amount of caffeine in her body on the 2nd day is, 4.8 mg

The amount of caffeine in her body on the 3rd day is, 7.2 mg

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The angle that defines the arc is x = pi/4.

For a circle with a radius R, the area of an arc defined by an angle x is:

A = (x/2)*R^2

In this case, the diameter is 16km, then the radius is given by:

R =16km/2 = 8km

Then the area is:

A = (x/2)*(8 km)^2

And this must be equal to 8*pi km^2

Then we can solve the equation:

(x/2)*(8 km)^2 = 8*pi km^2

(x/2)*64 = 8*pi

x = 2*8*pi/64 = pi/4

That is the measure of the angle.

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18/35 fraction of students are girls who brought their lunch today.

A fraction is a mathematical concept that denotes a component of a whole or, more generally, any number of equal parts. A fraction, such as one-half, eight-fifths, and three-quarters, denotes the number of components of a specific size when used in conversational English.

Let's say,

Total number of students over school = x

Number of girls = (6/7)x

Number of girls who brought their lunch = 3/5 of (6/7)x

⇒ 3/5(6/7)x

⇒ (18/35)x

Hence "18/35 fraction of students are girls who brought their lunch today".

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We know that:

- The company offered him $46,000 per year plus 3% of his total sales.

- the average pay for this job is $64,000

And we must find what would be the sales of Andre for his pay to be at least as high as the average pay for this job

To find it we can use a equation that represents the situation

We can use the next formula

Analyzing the given information we know that

- avergare pay = 64000

- base salary = 46000

- 3% of total sales = 3% * x = 0.03 * x (x represents the total sales)

Now, replacing the values in the formula

Since x represents the total sales we need to solve the equation for x

ANSWER:

Andre should have $600,000 in his total sales for his pay to be at least as high as the average pay for this job

The present age of the Bernard is, 23.

What is age?

Given a date of birth, this free age calculator calculates age in terms of years, months, weeks, days, hours, minutes, and seconds.

Calculated using the population's arithmetic mean, average age. The median age is a factor that determines the population's average age.

As given, in 7 years Bernard will be twice as old as he was 8 years ago.

Let  the present age of Bernard = x

Bernard age after 7 years = x + 7.

Bernard age before 8 years = x - 8.

From the given information,

2(x - 8) = x + 7

2x - 16 = x + 7

2x - x = 16 + 7

x = 23

Therefore, the present age of Bernard is 23.

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First, notice that since we have an isosceles trapezoid, the base angles will be equal, then:

next, we have that the angles adjacent to opposite bases are supplementary, then we can write the following equation:

using the fact that the measure of angle 3 is 60 degrees, we can find the measure of angle 2:

then, since angles 1 and 2 are also base angles, they are equal. Therefore, the measure of the anlges is:

Answer:

y = 10x - 8

Step-by-step explanation:

The slope is "m", or how much the y-value changes on a line when the x-value changes by one.

The y-intercept is the y value of the line when it is intersecting the y-axis, or when the x-value is 0.

To find the slope, take 2 points from the graph and plug into the slope formula:

[tex]\frac{y_2-y_1}{x_2-x\\_1}[/tex]

I'll use (0, -8) and (1,2).

Plug into the formula.

[tex]\frac{2--8}{1-0}[/tex]

[tex]\frac{10}{1}[/tex]

10

Slope = 10

To find the y-intercept, look at the table. What is the y-value when the x-value is equal to 0?

-8

y-intercept: -8

Slope-Intercept form:

y = mx + b

m: slope

b: y-intercept

y, x: leave as variables

y = 10x - 8

Answer:

1.6, 1.62, 1 5/8, 7/4

Step-by-step explanation:

First, let's turn the fractions into decimals:

For 7/4 you simply divide 7 by 4. Which equals 1.75.

Next for 1 5/8 we divide 5 by 8, which equals 0.625. + the 1 in 1 5/8. So we have 1.625.

Now, we arrange the decimals:

1.6, 1.62, 1.625, 1.75

But this is NOT the answer. We have to replace the decimals that WERE fractions back to the original, then order them from there:

1.6, 1.62, 1 5/8, 7/4.

This IS the answer.

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Answer:

the answer to this question is in the screenshot. pls mark this answer as the brainliest

Step-by-step explanation:

Answer:

x²/10000 + y²/1900 = 1

Step-by-step explanation:

coordinates (-100,0) and (100,0)  missing in Question

The center of the hyperbola  is  (0,0)  = (h, k)

c = the distance form the center to either focal point  = 100

c² =  100²   =  10000

The differences  from the receiver to the transmitters  =  2a

2a =  180

=> a   =  90

=> a² = 8100

b²  = c² - a²

b²  = 10000 - 8100

b²  =1900

(x - h)²/a²  + (y - k)²/b²  = 1

=> x²/10000 + y²/1900 = 1

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Ok, so

If the scale from the real Eiffel Tower to the scale model is 15 ft to 3 in, the unit rate will be:

This means that, in the scale:

5 ft = 1 in.

Then, the unit rate is 5.

Let us take the unknown number as b.

Sum of the number and 8 can be represented as,

8 + b

Therefore, five time the sum is,

5(8+b)

This is equal to 4, so,

5 (8 +b) = 4

This is the required equation.

The number is,

The number is, -7.2.

Replacing x=1 in the equations to verify if the value of y is equal to 8, we have:

A.

y= 5*(1) + 3 = 8 (Multiplying and adding) (It is correct as the result for y is equal to 8)

y= 9*(1) - 1 = 8 (Multiplying and subtracting)(It is correct as the result for y is equal to 8)

B

y= 4*(1) + 2 = 6 ≠ 8 (Multiplying and adding) (It is not correct as the result for y is not equal to 8)

C

y= -2*(1) + 10 = 8 (Mulitplying and subtracting) (It is correct as the result for y is equal to 8)

y= 8*(1) + 1 = 9 ≠ 8 (Multiplying and adding) (It is not correct as the result for y is not equal to 8)

D.

y= 7*(1) -5 = 9 ≠ 8 (Multiplying and subtracting) (It is not correct as the result for y is not equal to 8)

The answer is the option A.

Answer:

Step-by-step explanation:

NO! Hope I helped.

ANSWER:

STEP-BY-STEP EXPLANATION:

By the statement Kevin always has $5 or more, which means that x can be 5 or all values greater than this. So the correct graph would be the first option:

The ordered pair that can be plotted together with these four points is

(0, 3).

Option C is the correct answer.

A function is a relationship between inputs where each input is related to exactly one output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

The following coordinates are from the graph.

(3, -1), (2, 3), ), (-4, 2), and (-2, -3)

We know that,

A function can have many-to-one but not one-to-many.

So,

We can not have (-2, 0), (-2, 3). and (3, 0) because we already have (-2, 3) and (3, -1).

This is an indication of a one-to-many function that is not possible.

(0, 3) is possible.

Thus,

The ordered pair that can be plotted together with these four points is

(0, 3).

Option C is the correct answer.

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Circumference

Formula

C = 2*pi*r

Substitution

C = 2*(3.14)* (5)

Simplification

C = 31.4 m This is the Circumference

Area

Formula

A =pi*r^2

Substitution

A = 3.14*5^2

Simplification

A = 3.14*25

Result

Area = 785 m^2 This is the area

Answer:

a.

linear? yes

why? because it is straight line

domain? 8

range? 8

b.

linear ? no

why? because it's curved

domain? -4

range?4

SOLUTION:

In this problem.

Let number of dimes = x, then number of quarters = 2x - 7.

The monetary values of quarters and dimes are;

Thus, 2( 13) - 7 = 19.

Therefore, there are 13 dimes and 19 quarters.

Answer:

Step-by-step explanation:

These are tough,  so picture a line ( graph)  going  up the picture.

I'm attaching my graph

M = 10*R

each raffle ticket cost 10 bucks

To identify the mass of the solute, subtract the total mass by the mass of the graduated cylinder.

Thus, we have the following:

To obtain the concentration of the solution, divide the obtained mass by the total volume and then simplify.

Thus, we have the following:

Answer:

y = 75; z = 75

Step-by-step explanation:

105 and z are a linear pair and that means they add up to 180

they are on a straight line which is why they are a linear pair

105 + z = 180

subtract 105 to both sides

z = 75

now add all of the remaining sides and subtract that from 360 because a quadrilaterals angles add to 360

75 + 89 + 95 = 259

360 - 259 = y

360 - 259 = 101

y = 101

these are your answer

Answer:

y=95

z=105

Step-by-step explanation:

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The statements the polygon has 144° rotational symmetry, The polygon has point symmetry and The polygon has 36° rotational symmetry are true.

We have to find the symmetry.

A decagon is given as

Number of sides = 10

So rotational symmetry = [tex]\frac{360^{0} }{n}[/tex]

= [tex]\frac{360 }{10}[/tex]

= 36°

So rotational symmetry angles are multiple of 36°

So 36° x 4 = 144° is a rotational symmetry.

The all sides are congruent, so decagon as point symmetry.

Hence the answer is The statements the polygon has 144° rotational symmetry, The polygon has point symmetry and The polygon has 36° rotational symmetry are true.

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The random variable x has a normal distribution with standard deviation. It is known that the probability that x exceeds is. 90. Therefore, mean  of the probability distribution is 133.09.

We are given that the random variable x has a normal distribution with standard deviation 21,i.e;

X ~ N( u, σ=21)

The Z probability is given by;

             Z = X- u/σ ~ (0,1)

Also, it is known that the probability that x exceeds 160 is 0.90 ,i.e;

P(X > 160) = 0.90

P( X-u/σ > 160-u /21  ) = 0.90

From the z% table we find that at value of x = -1.2816, the value of

P(X > 160) is 90%

which means;   160-u /21   = -1.2816

                          160 -  = 21*(-1.2816)

                             = 160 - 26.914 = 133.09

Therefore, mean  of the probability distribution is 133.09.

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To find JL

We will first find the value of x

JK = KL

2(x+6) = 3x + 8

2x + 12 = 3x+ 8

subtract 2x from both-side of the equation

12 = 3x-2x + 8

12 = x+ 8

subtract 8 from both-side of the equation

12 - 8 = x+ 8 - 8

4 = x

x=4

JK = 2(x+ 6)

substitute x = 4 into the above

JK = 2(4+6)

JK=2(10)

JK=20

KL =3x+8

substitute x=4 into the above

KL = 3(4) + 8

KL = 12 + 8

KL=20

JL = JK + KL

= 20 + 20

= 40

JL = 40 units

According to the table, the rate of change between 2018 and 2021 was 22.22%

A variable's rate of change over a predetermined amount of time. It is frequently used while discussing momentum and is typically represented as a ratio of one variable's change to another's corresponding change.

Given that,

Year Kids

2018   93

2019   92

2020  78

2021   75

2022   78

So, we have to calculate the rate of change between 2018 and 2021:

As we know, rate of change = (change in year / change in kids) × 100

rate of change = (4/ 18) × 100

rate of change = 22.22%

So, according to the table, the rate of change between 2018 and 2021 was 22.22%

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Given the point-slope equation

Simplify as shown below

The answer is -2x/3+y=-19/3. Write -2/3 in the first gap, 1 in the second gap, and -19/3 in the third one.

How to multiply fractions

How to add fractions,

Answer:

2x + -3y = 19

Step-by-step explanation:

In this question, they already gave you the equation of the line. But it is in point-slope form. We just need to rearrange the equation to look like:

Ax + By = C

A and B and C should be positive or negative whole numbers. So let's get rid of the fraction first.

y + 1 = 2/3 (x - 8)

You could use distributive property on the right side, but that is just going to make two terms have fractions. Instead, let's multiply both sides by 3 and get rid of the fraction.

3(y + 1) = 3• 2/3(x-8)

3(y + 1) = 2(x - 8)

Now use distributive property.

3y + 3 = 2x - 16

We need x and y on the left and plain numbers on the right.

3y + 3 = 2x - 16

Subtract 3

3y = 2x - 19

Subtract 2x

3y - 2x = -19

Rearrange the x and y terms, put x in the lead.

-2x + 3y = -19

This is almost standard form. The A is supposed to be positive. So change the sign of ALL the numbers. A is 2, the B is -3 and the C is 19. Those are the numbers that go in the blanks on your question.

Answer:1/4 or 0.25/1

Step-by-step explanation:

In 1 kilometer there are a thousand meters. So 250 is a quarter of 1000 which makes the fraction 1/4 or 0.25/1 whichever you need.