if noah ran 45 minutes and john ran 6 more minutes the noah how many minutes did john run? please help

The type of energy the box have after it is done being pulled is "kinetic energy".

Kinetic energy is the type of energy which an item or particle has as a result of its motion. When work, that transfers energy, is performed on an item by exerting a net force, that object accelerates and obtains kinetic energy.

Now, according to the question;

The box's mass, m = 10 kg

F = 50 N, the force that occurs when the box is pulled

It has been moved 4 meters.

Friction force operating upon that box, f = 20 N

We must determine the box's initial kinetic energy. The box appears to be at rest at first. Because there is no movement in the box at the time.

The formula for box's kinetic energy is as follows:

K.E = (1/2)mv²

As velocity is given zero; v = 0.

Thus, K.E = 0.

The initial velocity of the box is zero.

Therefore, as the box starts moving its zero kinetic energy will start increasing.

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Answer:

this is it......sorry about the painting

Lucy has $7 less than Kristine and $5 more than Nina together, the three have $35. Lucy has $11.

Let's denote the amount of money that Kristine has as K, the amount of money that Lucy has as L, and the amount of money that Nina has as N.

According to the given information, we can form two equations:

Lucy has $7 less than Kristine: L = K - 7

Lucy has $5 more than Nina: L = N + 5

We also know that the three of them have a total of $35: K + L + N = 35

We can solve this system of equations to find the values of K, L, and N.

Substituting equation 1 into equation 3, we get:

K + (K - 7) + N = 35

2K - 7 + N = 35

Substituting equation 2 into the above equation, we get:

2K - 7 + (L - 5) = 35

2K + L - 12 = 35

Since Lucy has $7 less than Kristine (equation 1), we can substitute K - 7 for L in the above equation:

2K + (K - 7) - 12 = 35

3K - 19 = 35

Adding 19 to both sides:

3K = 54

Dividing both sides by 3:

K = 18

Now we can substitute the value of K into equation 1 to find L:

L = K - 7

L = 18 - 7

L = 11

Finally, we can find the value of N by substituting the values of K and L into equation 3:

K + L + N = 35

18 + 11 + N = 35

N = 35 - 18 - 11

N = 6

Therefore, Lucy has $11.

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Answer:

y=-2 8/9

x=31 1/2

Step-by-step explanation:

x-4y=15 --> x=4y+15

8x-5y=42

8(4y+15)-5y = 42

32y +120 - 5y = 42

27y = -78

y=-2 8/9

x=31 1/2

Answer: 5(2p-7)

Step-by-step explanation:

Answer:

a.

Step-by-step explanation:

f(x) has the highest or greatest maximum y value of 3

The value of the given expression is -1.

Given is an expression 1/4 (-4/1) (3/5) (-5/6) (-2) we need to simplify it,

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division. The terms involved in an expression in math are:

Constant: A constant is a fixed numerical value.

Variable: A variable is a symbol that doesn't have a fixed value.

Term: A term can be a single constant, a single variable, or a combination of a variable and a constant combined with multiplication or division.

Coefficient: A coefficient is a number that is multiplied by a variable in an expression.

so,

1/4 (-4/1) (3/5) (-5/6) (-2)

= 1/4 × -4 × 3/5 × -5/6 × -2

= -1 × -1/2 × -2

= -1

Hence the value of the given expression is -1.

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Answer:10+x

Step-by-step explanation:

We are asked to find the limits of two different expressions: lim (sin(7x)/8) as x approaches 0, and lim (arctan(-2)) as x approaches infinity.

For the first limit, lim (sin(7x)/8) as x approaches 0, we can directly evaluate the expression. Since sin(0) is equal to 0, the numerator of the expression becomes 0.

Dividing 0 by any non-zero value results in a limit of 0. Therefore, lim (sin(7x)/8) as x approaches 0 is equal to 0.

For the second limit, lim (arctan(-2)) as x approaches infinity, we can again evaluate the expression directly.

The arctan function is bounded between -π/2 and π/2, and as x approaches infinity, the value of arctan(-2) remains constant. Therefore, lim (arctan(-2)) as x approaches infinity is equal to the constant value of arctan(-2).

In summary, the first limit is equal to 0 and the second limit is equal to the constant value of arctan(-2).

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(a) The velocity when the particle reaches B is 8 m/s.

(b) The distance between point A and B is 5.33 m.

(c) The value of t when the particle reaches C is 1.63 seconds.

(d) The distance AC​ is 8.7 m.

The velocity when the particle reaches B is calculated as follows;

v = ∫a. dt

where;

v =  ∫(4t . dt)

v = 4t²/2

v = 2t²

v(2) = 2(2)²

v(2) = 8 m/s

Thus, the velocity when the particle reaches B is 8 m/s.

x = ∫v

where;

x = ∫2t². dx

x = ²/₃t³

x(2) = ²/₃(2)³

x(2) = 5.33 m

Thus, the distance between point A and B is 5.33 m.

when the particle reaches point C, final velocity, vf = 0

vf = v + at

where;

0 = 8 - 3t(t)

0 = 8 - 3t²

3t² = 8

t² = 8/3

t² = 2.67

t = √(2.67)

t = 1.63 seconds

x = ∫vf

x = ∫(8 - 3t²)

x = 8t  - t³

x(1.63) = 8(1.63) - (1.63)³

x(1.63) = 8.7 m

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The area of the shaded region is the area of the rectangle minus the area of the triangle

Find the coordinates of point E: Since point E lies halfway between sides AB and CD, and halfway between sides AD and BC, we can find its coordinates by taking the average of the coordinates of the opposite vertices. That is, if A = (a, b), B = (c, d), C = (e, f), and D = (g, h), then the coordinates of E are ((a+g)/2, (b+h)/2).

Find the equation of the diagonal BD: The diagonal BD passes through points B and D, so we can find its equation by using the point-slope form: y - d = (h - d)/(g - c) * (x - c).

Find the equation of the line perpendicular to BD passing through E: Since the shaded region is formed by the rectangle and the triangle outside it, we can find the equation of the line perpendicular to BD passing through E to find the height of the triangle. The slope of the line perpendicular to BD is the negative reciprocal of the slope of BD, so it is -(g - c)/(h - d). We can use the point-slope form again to find the equation of the line: y - ((b+h)/2) = -(g-c)/(h-d) * (x - (a+g)/2).

Find the intersection of the two lines: The intersection of the two lines is the point where the height of the triangle intersects the diagonal BD. We can solve the system of equations formed by the two lines to find this point.

Find the area of the triangle: Once we have the height of the triangle and the length of the base (which is the length of diagonal BD), we can use the formula for the area of a triangle: A = (1/2)bh, where b is the length of the base and h is the height.

Find the area of the shaded region: The area of the shaded region is the area of the rectangle minus the area of the triangle.

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Answer:

8 t-shirts for $38

Step-by-step explanation:

To Find which is the better deal we have to divide.

The Cost divide by the Number of T-shirts.

Thus, 38/8 and 70/14

38/8 = 4.75

70/14 =5.00

Hence, We can conclude that 8 t-shirts for $38 is the better deal.

[RevyBreeze]

\([Hello,BrainlyUser]\)

Answer:

8 t-shirts for $38

Step-by-step explanation:

\(\frac{Cost}{T-Shirt}\)

38/8 = 4.75

70/14 = 5

4.75 < 5

Hence, Answer = 8 t-shirts for $38

[CloudBreeze]

Answer:

57.14% increase

Step-by-step explanation:

The percentage change is calculated by dividing the difference value by the original value and multiplying it by 100.

If the price of the laptop was changed from $350 to $550.

The percentage change in the cost of the laptop is 57%.

The percentage is calculated by dividing the required value by the total value and multiplying it by 100.

Example:

Required percentage value = a

total value = b

Percentage = a/b x 100

We have,

The percentage change is calculated by dividing the difference value by the original value and multiplying it by 100.

The price of the laptop changed from $350.00 to $550.00.

Original price = $350

New price = $550

The percentage change in the cost of the laptop:

= [ (New price - Orginal price) / Original price ] x 100

= (200/350) x 100

= 20000/350

= 57.14%

= 575

Thus,

If the price of the laptop was changed from $350 to $550.

The percentage change in the cost of the laptop is 57%.

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The maximum number of chairs that can be made will be the minimum of 12, 15, and 11. That exists, 11 chairs can be made, limited by the number of available legs.

The study of probabilities, which are determined by the ratio of favorable occurrences to probable cases, is known as probability.

The maximum number of chairs that can be made will be the minimum of the number of parts divided by the number of parts required for each chair, as calculated across the various types of parts required.

seats: 12 available, used 1 per chair: 12/1 = 12 chairs possible

backs: 15 available, used 1 per chair: 15/1 = 15 chairs possible

legs: 44 available, used 4 per chair: 44/4 = 11 chairs possible

The maximum number of chairs that can be made will be the minimum of 12, 15, and 11. That exists, 11 chairs can be made, limited by the number of available legs.

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Answer: y-5=-3(x-10)

Step-by-step explanation:

The mean of the sampling distribution of X is 18 and the standard deviation is approximately 3.00.

What is mean ?

Mean can be defined as ratio of number of favourable outcomes , total number of outcomes.

The population proportion of people who do not wear seat belts is 0.1 or 10%. We can assume that the sample is randomly selected and that the sample size is small enough relative to the population that we can use the binomial distribution to model the number of people who do not wear seat belts.

The mean of the sampling distribution of X is:

μ = np = 180 × 0.1 = 18

where n is the sample size and p is the population proportion.

The standard deviation of the sampling distribution of X is:

σ = sqrt(np(1-p)) = sqrt(180 × 0.1 × 0.9) ≈ 3.00

where sqrt() represents the square root function.

Therefore, the mean of the sampling distribution of X is 18 and the standard deviation is approximately 3.00.

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Answer:

I think it might be the last answer

Step-by-step explanation:

sorry just tryna help ok dokie

Answer:

yaaa last one

Step-by-step explanation:

Answer:

20/27

Step-by-step explanation:

When all samples are drawn from a single population, the mean of the distribution of differences should approximate 0.

When samples are drawn from a single population, the differences between pairs of samples should reflect the inherent variability within that population. If the population has a well-defined mean, the differences between pairs of samples will tend to cancel out, resulting in an average difference close to zero.

This is because the positive differences will be balanced by the negative differences, leading to an overall mean difference of approximately zero.

Therefore, option a, "0," is the correct answer. The mean of the distribution of differences should approach zero when all samples are drawn from a single population.

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Answer:

57 in²

area of rectangle = length * width

9 1/2 * 6

19/2 * 6

114/2

57 in²

Proportionately, if a party has food to sustain 200 people for 4 days, the food will sustain 160 people for 5 days.

The proportion refers to the ratio that one quantity, value, or expression has in comparison with another.

Proportion is a fractional value that is depicted using decimals, fractions, and percentages.

The number of people sustained by the food for 4 days = 200

The number of days the food sustained 200 people = 4 days

Proportionately, the food will sustain 200 for 5 days (200/160 x 4)

Thus, the food that sustains 200 people for 4 days will sustain 160 people for 5 days, based on the principle of proportional relationships.

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Answer:

Answer is 360

to find each of the angles take 360 ÷ by the number of sides , in this case is 360 ÷ 6 = 60

Answer:

Option D is correct

Step-by-step explanation:

Sum of exterior angle measures for a regular hexagon = 360°

The values of x and y are 12 and 31 respectively

Alternate angles are the set of non-adjacent angles on either side of the transversal which cuts two parallel lines.

Alternate angle may be exterior or interior based on how you view the transversal and in geometry angles that are alternate are equal.

From the diagram, angles (5x -7)° and (3x + 17)° are alternate since they are angles formed between each parallel line and the transversal

Since both angles are alternate, it means they are equal,

So that,

5x - 7 = 3x + 17

By collecting like terms

5x - 3x = 17 + 7

2x = 24

x = 24/2

x = 12

Also (5x - 7)° + (4y + 3)° = 180 ( sum of angles on a straight line = 180°)

5x + 4y -4 = 180

5x + 4y = 180 + 4

5x + 4y = 184

Substitute x = 12 into the above equation,

5(12) + 4y = 184

60 +4y = 184

4y = 184-60

4y = 124

y = 124/4

y = 31.

In conclusion the x = 12 and y = 31

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Answer:

sorry i don't have a step to step explanation but here

x= -78

y=4

Based on the information, it should be noted that the inequality to solve for m will be D. m + 6 < 8; m < 2.

It should be noted that in Mathematics, an inequality is used to show the expressions that are hot the same or equal.

Based on the information given about the triangle, it should be noted that the hypothenuse which is given as 8 is the longest side of the triangle.

Therefore, the inequality to solve for m will be:

m + 6 < 8.

Collect like term

m < 8 - 6

m < 2

Therefore, based on the information, it should be noted that the inequality to solve for m will be m + 6 < 8; m < 2.

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A 4:2 ratio can be simpified even more to a 2:1 ratio, which means by continuing the ratio you would get a 34 books in 17 months

Answer:

If her garden is 70m long, and it's a square type, wouldn't that suggest that her garden is 280m long?(70m X 4) And if this is the case, her garden would be 280 X 3=840 since there are 3 rounds?

Step-by-step explanation:

Answer: 840m

The salesman used 460 order forms in total, when he used three types of order forms: a, b, c.

Given that,

A salesman used three types of order forms: a, b, c. he used 50 of form a. of form b he used four times as many as form a plus 1/2 as many as form c. he used as many of form c as form a plus 1/2 as many as form b

A = 50

B = 4A + 0.5C = 200+ 0.5C  .......... (i)

C =  A +  0.5B =  50 + 0.5 B  .......... (ii)

multiply (ii) with 2

B = 2C -50              .......... (iii)

B = 0.5C + 160        ...........(i)

subtract (i) from (iii)

0 = 1.5C -210

C = 420/3 = 140

put in (i)

B = 200 + 0.5(140) = 270

Total forms = A+B+C = 50 + 270 + 140 = 460

Therefore, he used 460 forms altogether.

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