Mathematics High School

Suppose it takes John 45 minutes to run 4 miles. How long would it take him to run 4 kilometers? Round your answer to the nearest minute

Answers

Answer 1

Answer:

28 minutes

Step-by-step explanation:

4 miles = 45 minutes

4 kilometers = (m) minutes

45 ÷ 4= 11.25

4 kilos= 2.48548 miles

2.48548 x 11.25= 27.96165

m = 28 minutes

- I hope this helps have a great day

Answer 2

John will covers 4 km distance in 28 minutes.

What is Rate of change?

A rate is anything that can be measured over time. Common rates include velocity (which is the rate of distance traveled), power (rate of work being done), etc. All these have one thing in common which is that they are all divided by the amount of time it took to obtain a certain measurement.

Here, it is given that John takes 45 minutes to run 4 miles and is known that :

1 mile ≈ 1.61 km

that is for,

4 mile ≈ 6.44 km

John covers 6.44 km in 45 minutes, John will cover 4 km in :

6.44 km ⇒ 45 minutes

1 km ⇒ 45/6.44 minutes

4 km ⇒ 4 x (45/6.44) minutes ≈ 28 minutes

Therefore, John will covers 4 km distance in 28 minutes.

Related Questions

What is the constant of proportionality for the relationship shown in this table?

x 1 2 3 4
y 4 8 12 16

14

4

8

16

Answers

Answer:

explanation:

I took the test

The constant of proportionality is 4.

What is constant of proportionality?

The constant value of the ratio between two proportional quantities is the constant of proportionality. When either their ratio or their product gives a constant, two varying quantities are said to be in a relation of proportionality. The type of proportion between the two given quantities determines the value of the proportionality constant: Variation in both a direct and inverse manner.

given relation

x 1 2 3 4

y 4 8 12 16

the equation is

y = 4x

1 * 4 = 4

2 * 4 = 8

3 * 4 = 12

and so on...

Hence the constant is 4.

Learn ore about constant of proportionality;

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If f(x) = 1/2x^2 - (1/4x +3), what is the value of
f(8)?

Answers

Answer:

Step-by-step explanation:

If [tex]f(x) = \frac{1}{2x^2} - \frac{1}{4x +3}[/tex], then the value of [tex]f(8)[/tex] is [tex]f(8) = \frac{-93}{4480}[/tex].

What is Quadratic Equation?

A quadratic equation is an algebraic equation in the variable of the second degree. The quadratic equation is in the form of [tex]ax^{2} + bx + c = 0[/tex], where [tex]a,b,c[/tex] are the real numbers.

We have

[tex]f(x) = \frac{1}{2x^2} - \frac{1}{4x +3}[/tex]

According to Quadratic Equation,

[tex]f(x)=ax^{2} +bx+c[/tex]

And we have,

[tex]f(x) = \frac{1}{2x^2} - \frac{1}{4x +3}[/tex]

So,

[tex]f(8) = \frac{1}{2x^2} - \frac{1}{4x +3}[/tex]

i.e. putting [tex]x=8[/tex],

[tex]f(8) = \frac{1}{2(8)^2} - \frac{1}{4*8 +3}[/tex]

[tex]f(8) = \frac{1}{128} - \frac{1}{35}[/tex]

Solving the above part,

[tex]f(8) = \frac{ 35-128 }{ 128*35 }[/tex]

[tex]f(8) = \frac{-93}{4480}[/tex]

Hence, we can say that value of [tex]f(8) = \frac{-93}{4480}[/tex] .

To know more about Quadratic Equation click here

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BRAINLIEST
Estadio Azteca, a stadium in Mexico City, has a capacity of 1.04 × 105 people. One day,
spectators filled Estadio Azteca in 25 minutes.
1. What division expression represents the average number of people per minute?

Answers

The average number of people who entered the stadium per minute was 4,160

we know that

To find out the average number of people who entered the stadium per minute, divide the total number of people by the time required to fill the stadium

Let

x ----> the total number of people

y ----> the time required to fill the stadium

we have

1.04*10 5/25 = 4,160 people/mintute

therefore

The average number of people who entered the stadium per minute was 4,160

I hope this helped! Plz, comment in the paragraphs soon!

There are 15 female performers in a dance recital. The ratio of men to women is 4:5. How many men are in the dance recital?

Answers

Answer:

12 Men

Step-by-step explanation:

Since the ratio is 4:5 (men:women) 15/5 = 3, so you use 3 as your multiplier and write 3 x 4 = 12 :D

whats 9 + 10? if you get it right brainliest

Answers

Since brainily make me write more than 20 character this is the answer 9+10=12

Answer:

19.

Step-by-step explanation:

How much time will it take for an amount of ₹9000 to yield ₹810 as interest at 4.5% per annum of simple interest?
[Irrelevant answers will be reported]

Answers

Answer:

2 years

Step-by-step explanation:

because 4.5 percent of 9000 is 405

405 times 2 is 810

so 2 years

Ashley solved the inequality as shown below. Which of the following describes her mistake?
1st step 6-4(6n+7)≥122
2nd step 6 -4 to the 6n and 7(6n+7)≥122
3rd step 6-24n-28≥122
4th step -22 is dashed out -24n≥122-22
5th step 24n/24≥122/24
6th step n=-4.17

A. Ashley incorrectly distributed the -4.
B. Ashley incorrectly combined her like terms.
C. Ashley incorrectly moved the constant to the right side.
D. Ashley incorrectly divided.

Answers

C because she cannot dash out -22

The diameter of a circle is 14 meters what is its radius

Answers

Answer:

A circle of radius = 14 or diameter = 28 or circumference = 87.96 meters has an area of: 0.0006158 square kilometers (km²) 615.8 square meters (m²) 6.158 × 10 6 square centimeters (cm²) 6.158 × 10 8 square millimeters (mm²) 0.000237762 square miles (mi²) 736.491 square yards (yd²) 6628.42 square feet (ft²) 9.54492 × 10 5 square inches (in²)

Step-by-step explanation:

Please help using the picture below I will give BRAINLY!

Answers

Answer:

2) 76

3) 64

Step-by-step explanation:

The actual answer is
A) 76
B) 62

The other person did a miscalculation

In a class of 65 students, 10 students liked Maths but not English and 20 students liked
English but not Maths. If 5 students did not like both, how many students liked both subjects?

Answers

Answer: 30 students liked both.

step-by-step explanation: If there are 65 students and 10 liked math but not english you subtract 10 from 65, you get 55. You continue to the next one, 55-20= 35, now there are 35 students but 5 of those students don't like either, so 35-5=30, meaning there are 30 students that like both english and math. I hope this helps.

(02.01)
Solve for x
2/3(x - 2) = 4x (1 point)

Select one
2.
a
5
5
2
с
2.
5
d. 5

Answers

Answer:

x=-2/5

Answer: 5

Step-by-step explanation:

Scale factor = [tex]\dfrac{\text{ side length of image}}{\text{Side-length of original figure}}[/tex]

Given: Black triangle ( original) having perpendicular with length 4 units. [2 blocks above and 2 boxes below the x-axis ]

Green triangle ( image) having corresponding side as 20 units [10 blocks above and 10 boxes below the x-axis ].

Scale factor of dilation = [tex]\dfrac{20}{4}=5[/tex]

Hence, the scale factor of the dilation = 5

Determine the measure of ZUXW in the diagram.

66°
57°

The measure of LUXW is

Answers

Answer:

the measure of <UXW is 57°

PLEASE HELP MEEE what is the y-intercept of this line?
A. (-2, 0)
B. (0, -2)
C. (0, 1)
D. (1, 0)

Answers

Picture??
I need it so I can see if my answer it right or wrong

Answer:

What is the line? The link isn't working...

Step-by-step explanation:

Wait, nevermind... I got it! The answer is B. (0,-2)

Hope that helps and please give me brainliest!!!

Answer:

I would think the principal is $13,000

Step-by-step explanation:

Answer:

Principle =$13000

Step-by-step explanation:

GEOMETRY) Please solve for X! plspls

Answers

Step-by-step explanation:

so the answer is would be X = 15

Correct !!!!!!!!!! Please give me thanks

angle a= 6x-5 degrees angle b=4x+45 degrees

Answers

Answer:

180

Step-by-step explanation:

Answer: the correct answer is 125°

Step-by-step explanation: i just had to get it wrong so i could get it right

A music store bought a CD set at a cost of $20. When the store sold the CD set, the percent markup was 35%. Find the selling price.
The selling price was s (Round to the nearest dollar as needed.)

Answers

Answer:

30.8 I believe is your answer

Step-by-step explanation:

Larry answered 8 out of every 10 questions on a test correctly. The test had 70 questions. How many correct answers did Larry give?----- What is the first complete ratio? (numbers)

Answers

Answer:

Step-by-step explanation:

70 / 10 = 7 > 8 * 7= 56 hha hope this helps

PLZZZZZZZZZZ HELP MEEEEEEEE IM BEING TIMED
PLZZZZ EXPLAIN THE ANSWER ALSO PLZZZZZZZZ

Terrance uses the jugs of water to fill cups with approximately 3.75 ounces of water each. About how many cups can Terrance fill if he uses all of the water in the jugs? Show your work or explain how you determined your answer.

1 gallon = 128 fluid ounces

Enter your answer and your work or explanation in the box provided.

Answers

Terrance will fill 16 cups if he fills up 2 gallons I answered on edge 2020

someone please help me answer question in attachment..

Answers

Answer:

135*

Step-by-step explanation:

trust me

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