please help mehbraaa

Final answer:

Two pumps working together will fill a tank in 12/7 hours, calculated by adding their rates of filling the tank and taking the inverse of the sum.

Explanation:

When two pumps are used together to fill a tank, the time it takes can be found by adding their rates of work and then finding the inverse of the sum. The first pump can fill the tank in 4 hours, which means its rate is 1/4 of the tank per hour. The second pump can fill the same tank in 3 hours, implying a rate of 1/3 of the tank per hour. When both pumps work together, their combined rate is (1/4 + 1/3) = (3/12 + 4/12) = 7/12 of the tank per hour.

To find the time taken to fill the tank jointly, we take the inverse of the combined rate: 1 / (7/12), which equals 12/7 hours. Therefore, using both pumps together, it will take 12/7 hours to fill the tank.

Answer:

3/5 of 1 page in 45  min

Step-by-step explanation:

Answer:

3(7)(4) c

Step-by-step explanaiton:

4(7)(3) d

12(7) e

Answer:

49

Step-by-step explanation:

You need to find the median,which is 30, then you figure out the innerquartile.....which is 9....then find out the outerquartile...58......then you find out the range of both of them....58 - 9 = 49

Plz correct me if I'm wrong

Of students in the sample, 90/200 fraction of the students were male.

Number of male students =90

Number of female students =110

So, total students = 90+110 =200

A fraction is a rational number that is not a whole number.

Fraction of students who were male = male students/ total students

Fraction of students who were male =90/200

So, 90/200 fraction of the students were male.

Hence, 90/200 fraction of the students were male.

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The Frequency table is shown below and the first Histogram is correct Histogram.

A frequency table is just a two-column "t-chart" or table that lists all of the potential outcomes and their corresponding frequencies as seen in a sample.

We have the data:

Ages of riders: 42, 14, 19, 30, 49, 48, 16, 24, 38, 53, 24, 15, 18, 20, 25, 11, 18, 49, 54, 20, 17, 26, 37, 15, 28.

So, the Frequency table is

Interval            Frequency

10−19                   9

20−29                 7

30−39                 3

40−49                 4

50−59                 2

and, the first Histogram is correct.

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The completed frequency table is shown below.

The correct histogram of the data is: A. histogram A.

In Mathematics and Statistics, a frequency table can be used for the graphical representation of the frequencies or relative frequencies that are associated with a categorical variable or data set.

In a frequency distribution table, all classes must have the same class width. In this context, we would develop a grouped frequency table by using a class width of 10 as follows;

Interval            Frequency

10 − 19                   9

20 − 29                 7

30 − 39                 3

40 − 49                 4

50 − 59                 2

In conclusion, we can logically deduce that only histogram A correctly represents the ages of the people who ride the new roller coaster during a fifteen-minute period.

I believe the answer is 2..

Answer:

y = 2x - 6

Step-by-step explanation:

6x = y +18

2x - y = 6

-2x. -2x

-1(-y)= -1 (-2x +6)

y = 2x -6

Answer:

y=2x-6

Step-by-step explanation:

Answer:

105

Step-by-step explanation:

the middle angle is 75 degrees

co interior angles add up to 180 so 75 +105 = 180

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Answer:

Step-by-step explanation:

hello : here is an solution :

Answer:

The missing height is 5 units

Step-by-step explanation:

Mathematically, the area of a parallelogram can be found using the formula below;

A = Base× Height

From the parallelogram diagram, we can identify that the base has a length of 7 units, a height of h units and an area of 35 square units

Substituting these values in the equation above, we have

35 = 7 × h

h = 35/7

h = 5 units

Answer:

5 real

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

All you have to do is count the number of answers imputed. Simple as that. If its a dot plot then just count the number of dots or x's

Answer:

5.36

Step-by-step explanation:

no no don't touch me there this is my no no square

Final answer:

To find the solution, add 91, 129, and 16 to get a sum of 236. Then divide this sum by 44 to get approximately 5.364.

Explanation:

To solve the given problem, we need to perform two steps: first, add the numbers together; second, divide the sum by 44.

Add 91, 129, and 16 together.

Divide the sum by 44.

We start by adding the numbers:

91 + 129 + 16 = 236

Next, we divide the sum by 44:

236 ÷ 44 = 5.363636...

The division yields a repeated decimal which we can round to a desired decimal place if necessary. In this context, we'll keep it as is or round it to the nearest thousandth, which would be approximately 5.364.

Answer:

Step-by-step explanation:

Volume  = 400 cubic inches

Area of base = length*breadth

length * breadth * height = 400

Area of the base * height = 400

Area of the base * 5 = 400

Area of the base = 400/5

Area of the base = 80 square inches

Answer:

9/50 or 0.18

Step-by-step explanation:

If you divide both 9/10 and 5 by 5, you get 9/50 of a mile in 1 minute. Hope this helps!

Answer:

[tex]\frac{9}{50}[/tex] miles per minute.

Step-by-step explanation:

To solve this, you will need to divide the total amount run by 5 to find the amount of miles run per minute.

This can be done by dividing by 5 or multiplying by 1/5 to get:

[tex]\frac{9}{10} *\frac{1}{5} = \frac{9}{50}[/tex] miles in 1 minute.

Answer:

Step-by-step explanation:

First of all we all should know about a geometric progression to solve this question.

A geometric progression is a series in which there is a first term a and all the next terms are calculated by multiplying the previous term by a common number r.

where a is known as first term and

r is known as common ratio.

In the question we are given a as 20 and we have to find out 2 terms after 20 and 4th term is given as 2500.

Formula for [tex]n^{th}[/tex] term in a geometric progression is:

[tex]a_{n} = a\times r^{n-1}[/tex]

Here [tex]a_{4}[/tex] = 2500

As per formula of [tex]n^{th}[/tex] term:

[tex]a\times r^{3} = 2500\\\Rightarrow 20 \times r^{3} =2500\\\Rightarrow r^{3} = 125\\\Rightarrow r = 5[/tex]

Now, 2nd term:

[tex]a_{2} = a \times r\\\Rightarrow a_{2} = 20 \times 5\\\Rightarrow a_{2} = 100[/tex]

Now, 3rd term:

[tex]a_{3} = a \times r^{2} \\\Rightarrow a_{3} = 20 \times 5^{2}\\\Rightarrow a_{3} = 500[/tex]

So, the two geometric means between 20 and 2500 are 100 and 500.

Answer:

-3

Step-by-step explanation:

Slope = change of x over change of y

6 over 2

3

line goes down so slope is negative

-3

The slope of the line passing through the given points (-1, 4) and (1, -2) is -3.

Given the following points:

To find the slope of the line passing through the given points (-1, 4) and (1, -2):

The slope of a line is simply the gradient of a line and it is typically used to describe both the direction and steepness of an equation of a straight line.

Mathematically, the slope of a line is given by the following formula;

[tex]Slope. \;m = \frac{Change \; in \; y \;axis}{Change \; in \; x \;axis} \\\\Slope. \;m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Substituting the given points into the formula, we have;

[tex]Slope. \;m = \frac{-2 \;- \;4}{1\; - \;[-1]}\\\\Slope. \;m = \frac{-6}{2}[/tex]

Slope, m = -3

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Answer:

c

Step-by-step explanation:

you start with $45 then for each number of days you pay $3

A member customer need to pay for the sweater during the sale if the customer paid the stores credit card is $ 15.30.

Credit card is defined as a kind of credit product offered by banks that enables users to take out loans up to a pre-approved credit limit. Earn benefits like cashback or mileage points. security from credit card theft. Free credit score information. Absence of foreign transaction costs increased capacity to spend.

Costumer is defined as a person or organization that acquires goods or services from another corporation. Positive customer experiences are extremely important for brand awareness because they frequently result in word-of-mouth promotion.

Given the market price = $24

The percent initial discount = 25%

The percent final discount = 15%

The customer paid the stores credit card

= 24 x 0.75 = 18

= 18 x 0.85 = 15.3

Thus, a member customer need to pay for the sweater during the sale if the customer paid the stores credit card is $ 15.30.

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Answer:

(x + 4y) (3x + 2z)

Step-by-step explanation:

First, write your problem as a mathematical expression:

3x^2 + 12xy + 2xz + 8yz

Factor out the greatest common factor from each group:

(3x^2 + 12xy) + 2xz + 8yz

3x (x + 4y) + 2z (x + 4y)

Factor the polynomial by factoring out the greatest common factor (GCF), x + 47

(x + 4y) (3x + 2z)

Step-by-step explanation:

Answer:

Step-by-step explanation: the awnser on edge is C the solution is for combinations, but the situation calls for permutations. Hope this helped :)

The error that is made in the work shown below is C. The solution is for combinations, but the situation calls for permutations.

It should be noted that permutations simply mean the ways that the objects from a set can be selected.

In this case, the error that is made in the work shown below is that the solution is for combinations, but the situation calls for permutations.

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Answer: 40

Step-by-step explanation: When you're asked to solve for x in an equation, what you're really being asked to do is get x by itself on one side of the equation.

In this problem since 10 is being added to x, in order to get x by itself, we must subtract 10 from the left side of the equation and when we subtract 10 from the left side of the equation, remember that we must also subtract 10 from the right side of the equation.

So on the left, 10 - 10 cancels out and

on the right, 50 - 10 simplifies to 40.

So x = 40.

Answer:

x = 40

Step-by-step explanation:

To solve for x, we must get it by itself. To do this, we have to subtract 10 from the left and right side of the equation.

Equation: x + 10 - (10) = 50 - (10)

This will cancel out the 10 on the left side (as 10 - 10 = 0) of the equation and leave you with the answer, x = 40.

Every second, the number of harmful bacteria remaining in the body decays by a factor of approximately .

To determine the rate of change in the number of harmful bacteria remaining in the body every second, we need to convert the time in the given function from minutes to seconds. The function provided is

⇒ [tex]H_{minute}[/tex](t) = 500,000,000 · [tex](0.2)^t[/tex].

A minute has 60 seconds, so we need to express the decay factor for a second. By letting t = [tex]t_{seconds}[/tex] ÷ 60, we can rewrite the function in terms of seconds:

⇒ [tex]H_{second}[/tex](t) = 500,000,000 · [tex](0.2)^\frac{t}{60}[/tex].

For every passing second, the decay factor is [tex](0.2)^\frac{1}{60}[/tex]. Using a calculator, we find:

⇒ [tex](0.2)^\frac{1}{60}[/tex] ≈ 0.98855,

rounded to two decimal places.

Therefore, every second, the number of harmful bacteria remaining in the body decays by a factor of approximately 0.99.

Complete question:

After a certain medicine is ingested, the number of harmful bacteria remaining in the body declines rapidly.

The relationship between the elapsed time t, in minutes, since the medicine is ingested, and the number of harmful bacteria remaining in the body, [tex]H_{minute}[/tex](t), is modeled by the following function:

[tex]H_{minute}[/tex](t) = 500,000,000 · [tex](0.2)^t[/tex]

Complete the following sentence about the rate of change in the number of harmful bacteria remaining in the body in seconds.

Round your answer to two decimal places.

Every second, the number of harmful bacteria remaining in the body decays by a factor of            .

The volume of the traffic pylon is 7.26 cubic feet.

To find the volume of the cone-shaped pylon, we'll use the formula for the volume of a cone, which is [tex]\( \frac{1}{3} \pi r^2 h \),[/tex]  where ( r ) is the radius of the base and ( h ) is the height.

Given that the height ( h ) of the pylon is 2.4 feet and the radius ( r ) is 1.7 feet, we can plug these values into the formula:

[tex]\[\text{Volume} = \frac{1}{3} \pi \times (1.7)^2 \times 2.4\][/tex]

Let's calculate this:

[tex]\[\text{Volume} \approx \frac{1}{3} \times 3.14159 \times (1.7)^2 \times 2.4\][/tex]

[tex]\[\text{Volume} \approx \frac{1}{3} \times 3.14159 \times 2.89 \times 2.4\][/tex]

[tex]\[\text{Volume} \approx \frac{1}{3} \times 3.14159 \times 6.936\][/tex]

[tex]\[\text{Volume} \approx \frac{1}{3} \times 21.78\][/tex]

[tex]\[\text{Volume} \approx 7.26 \text{ cubic feet}\][/tex]

So, the volume of the cone-shaped pylon is approximately 7.26 cubic feet.

Answer:

576

Step-by-step explanation:

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Thanks ;p

Answer:

576

Step-by-step explanation:

12x6 = 72

72x8=576

576

Answer:

G, the second option

Step-by-step explanation:

A triangle's degrees all adds up to 180.

45 + 60= 105 degrees

180-105= 75 degrees

that in which makes z=75 degrees.

Since z is sharing a straight angle, which is 180 degrees

180-75= 105 degrees.

Therefore, w=105 degrees

next time when you are asking a question, be sure to crop the screen shot because the screen contains some private information that may be used against you! :)

Answer:

Step-by-step explanation:

[tex]\frac{1}{4}b+6=16[/tex]

Subtract 6 from both sides,

[tex]\frac{1}{4}b+6-6=16-6\\\\\frac{1}{4}b=10\\\\b=10*4\\b=40[/tex]

Answer:

40 beads

Step-by-step explanation:

We want to find how many beads, b are being used

1/4b+6=16

To do this, we have to solve for b, by getting b by itself.

First, move all the constants to the same side. Subtract 6 from both sides, since it is being added to 1/4b.

1/4b+6-6=16-6

1/4b=10

Next, divide both sides by 1/4, or multiply both sides by the reciprocal of 1/4.

To find the reciprocal, flip the numerator (top number) and denominator(bottom number)

1/4–> 4/1

4/1*1/4b=10*4/1

The 1/4 will cancel, leaving us with:

b=10*4/1

b=40