A marathon runner covers a distance of 42.2 kilometers in 2 hours and 36
minutes. What was his average speed in kilometers per hour? *

Answers

Answer 1
16.23km/h. 42.2/2.6 = 16.2307692. Round to nearest hundredth. Please give me a brainliest if this helped!

Related Questions

2(x-1)+4=-(x+6)+5
..

Answers

x = -1

Step-by-step explanation:

2(x - 1) + 4 = -(x + 6) + 5

2x - 2 + 4 = -x - 6 + 5

2x + 2 = -x - 1

2x + x = -1 - 2

3x = -3

x = -1

someone please help me my math teacher didnt even come to class today

Answers

Answer:  See the worksheet below. Hope you can see.

Step-by-step explanation:

Roots: where the parabola intersects the x-axis

Axis of symmetry: the line that runs along the vertex of the parabola

Vertex: the points at which the parabola changes direction

Intercept: the point where the line intersects the y axis

Domain: the values of x (lowest to highest)

Range: the values of y (lowest to highest)

How much force is needed to push a 10kg ball to an acceleration of 0.8 m/s2?

Answers

Answer:

Mass of the object (m)= 10kg

Acceleration of the object (a)= 2m/s^2

Force acting on the object (F)= ?

Solution

F = m × a

F = 10 × 2

F= 20N

The force acting on the object is 20N.

Step-by-step explanation:

8N of force is needed to push a 10kg ball to an acceleration of 0.8 m/s²

What is Force?

Force is an influence that can change the motion of an object.

Given,

Mass of the object (m)= 10kg

Acceleration of the object (a)= 0.8m/s²

We need to find Force acting on the object (F)= ?

Force=Mass ×Acceleration

F = m × a

Plug in the values of mass and acceleration

F =10 × 0.8

F= 8N

Hence, The force acting on the object is 8N.

To learn more on Force click:

https://brainly.com/question/13191643

#SPJ2

A girl rides a bicycle with a speed of 10km/h for 2h and 15km/h for the next 3h. find the distance moved by her and average speed

Answers

That’s the answer
Like this

A student is running a 10-kilometer race. He runs 1 kilometer every 4 minutes. Select the function that describes his distance from the finish
minutes.
O f(x)=x+4
O f(x)=- tox+4
O f(x)=-*x+10
O f(x)=-*x+10


Please Real answers only, i beg you.

Answers

It’s the last answer:

f(x) = -(1/4)x+ 10

The plus 10 represents the 10km away he is at the start, and the -(1/4)x shows he is running 1/4 of a km closer to the finish every minute.

1 step multiplication equation that equals 20

Answers

Answer:

5x4

Step-by-step explanation:

5x4=20

Answer:

2 times 10 equals 20, or 5 times 4 equals 20.

Step-by-step explanation:

This is as simple as understanding what multiplies together to equal 20. I hope this helps!

if you can do any of these that would be great, just please tell me which ones you did and the more questions you do the more points you get

Answers

Answer:

14. a = 16 14. b = No she doesn't have enough money to buy it

Step-by-step explanation:

14. a = 45 - 17 - 8 - 4 = 16

14.b she only got 16 dollars left and the T-shirt cost 19 dollar

8x + y = 20
x - 2y = -6

Answers

Answer: the answer is

Step-by-step explanation:

Need help ASAP! Directions in picture;)

Answers

Answer:

[tex]x=61[/tex]

Step-by-step explanation:

We can find the angle directly above the [tex]2x+8[/tex].

We know that because they both lie on a straight line, the other angle is [tex]180-(2x+8)=172-2x[/tex].

Aha! We have a path to the solution!

[tex]172-2x=x-11[/tex] because of the parallel line angle theorem(I forget what it's called).

We then add [tex]2x[/tex] and [tex]11[/tex] to both sides to get [tex]183=3x[/tex].

Lastly, we divide by [tex]3[/tex] to get [tex]61=x[/tex].

So, [tex]\boxed{x=61}[/tex] and we're done!

20 m
20 m
6m
30 m
Area of the farm =
square meters
Area of the garden =
square meters

Answers

Answer:

Area of the farm is 600m²

Area of the garden is 120m²

Step-by-step explanation:

30m x 20m = 600m²

6m x 20m = 120m²

Solve the system of linear equations by graphing x - 3y = 3 4x + 3y = - 3​

Answers

Answer:

Assuming your equations are:

x-3y=3

4x+3y=-3

The answers are x = 0 and y = -1.

See the image for the graph.

If this solution helped you, consider upvoting it and giving a brainliest!

Step-by-step explanation:

See the image for the graph.

Make my life easier and answer number 6

Answers

Answer:

18

Step-by-step explanation:

To make it easier to understand, consider the exponent of a number with no decimals, with 1 decimal and with 2 decimals:

No decimals - the exponent has no decimals1 decimal - put the number as (a*10⁻¹)ⁿ = aⁿ10⁻ⁿ, there will be n decimals2 decimals - similar to above- (a*10⁻²)ⁿ = aⁿ10⁻²ⁿ, there will be 2n decimals

Since our given number is (0.23)⁹, with 2 decimal places, its exponent will have 2*9 = 18 decimals.

Pamela is 7 years younger than Jiri. The sum of their ages is 63. What is Jiri's age?

Answers

Answer: 35

Step-by-step explanation: (lol I read the question wrong). Basically subtract 7 from 63, then divide 56 by 2 to find Pamela’s age. Then add 28+7 because Jiri is 7 years older than Pamela

Pamela is 28 and Jiri is 35. This would make Pamela 7 years younger than Jiri, as well as ensuring the sum of their ages is 63 since 28+35=63.

In 2010, the population of a city was 168,000. From 2010 to 2015, the population grew by 7%. From 2015 to 2020, it fell by 6%. How much did the population decrease from 2015 to 2020, to the nearest 100 people?

Answers

Answer:

169,000 people

Step-by-step explanation:

increase from 2010-2015:

168000/100 = 1680 = 1%

1680 x 7 = 11,760 people

population at 2015 = 168000+11760 = 179,760

decrease from 2015-2020:

179760/100 = 1797.6 = 1%

1797.6 x 6 = 10,785.6 people

population at 2020 = 179760-10787.6 = 168,974.4 people

rounded to the nearest 100 = 169,000 people

Which number rounds to 3,400 when rounded to the nearest hundred?
O 3,348
3,429
O 3,504
O 3, 637

Answers

Answer:

The correct choice is option B.  3,429

Step-by-step explanation:

When rounded to the nearest hundred, 3429 becomes 3400.

Answer:

3,429 --- right answer

CAN SOMEONE PLEASE HELP!!! IM GONNA FAIL, ILL GIVE U BRAINLIST
What are the coordinates of F after a reflection over the line y=1? Give your answer in the format (#,#)

Answers

(-1,7) is the answer I think

Answer:

So for the coorfinates of F, you have to see how far it is from y=1. The F is 2  points under the 1 so you have to count 2 above the 1. So the point would be (7,3). Same for the other ones. For example like D. It's 2 above 1 so its going to be 2 under which would result in (1, -1)

Jenny and Tiana scored 44 points together in a basketball game. Jenny scored 4 more points than Tiana. How many points did Tiana score?

Answers

Answer:

Tiana scored 20 points.

Step-by-step explanation:

Answer: Tiana scored 20 points.

Step-by-step explanation:

44-20=24

If Jenny scored 4 more points than Tiana then Jenny scored 24 and Tiana scored 20.

5/8 times by 1/12
What is the answer in its simplest form?

Answers

Answer: 5/96

Step-by-step explanation:

If P(6, -2), Q(-2, 8), R(-4, 3), and S(-9, y), find the value of y so that line PQ ⊥ line RS.

Answers

Answer:

420-69

Step-by-step explanation:

i felt like that was the answer

Which choices are equivalent to the expression below? Check all that apply

Answers

Answer:

f son similares por defecto

Please help quickly! Find the length of the third side. If necessary, write in simplest radical form.

Answers

Answer: [tex]\sqrt{11[/tex]

Step-by-step explanation: pythagorean theorem a^2 + b^2 =c^2

switch it to c^2 - b^2 = a^2

c=6 and b=5

(6)^2 - (5)^2 = 36-25 which is 11

11=c^2. to find c, square root 11. the simplest form for this is just [tex]\sqrt{11[/tex]

One angle of an isosceles triangle is known to be 68°. What would be one of the other angles?
a 44°
b 55°
c 66°
d 112°

Answers

Answer:

44

Step-by-step explanation:

Isosceles triangles have two angles that are equal.  If the two equal angles are 68

We have  68, 68, and an unknown angle x

They add to 180

68+68+x = 180

136+x=180

x =180-136

x =44

Zack and his older brother Luke have ages that are consecutive odd integers. If Zacks age is x, Luke's age can be represented as

Answers

Answer:

x+2

Step-by-step explanation:

This is because they are both odd numbers, and rather than Luke being the younger brother, ad having to subtract, he is the older brother so you have to add.

Hope this helps!

Select all the statements that best describe the graph below.

Answers

The answer is 2 3 6 8

The Correct choices are :

The Rate of change is not constant

The dependent variable is number of book sales

The independent variable is day

The relationship is non - linear

This is a negative relationship

ab + Bbc, a=0. b = -6, and c = 5​

Answers

Answer:

180

Step-by-step explanation:

0 x -6 + -6 x -6 x 5

   0      +       180 = 180

guys pls help me!!!!!

Answers

Answer:

a=58

Step-by-step explanation:

32+a=90

32-32+a=90-32

a=58

90-32 is 58 so the missing degree is 58. The reason we use 90 first as the small box, indicates it’s a right angle thus being 90 degree and if one side is 32, then the other side must be enough to add up to 90 so 58 and 32 equal 90

How to solve this proof?

Answers

Answer:

∆ACD≅∆BCD                              definition of a segment bisector

Step-by-step explanation:

I think this is the only way to prove it in one reason

DE=DE (common)
AE=BE (CE intersects AB)
And angle AED = angle BED
So triangle ADE ≅ triangle BDE
(SAS congruence rule)

I need help, I can’t find the answer.

Answers

Answer:

to get rid of the fraction multiply both sides by six

Answer:

multiply both sides by 6

Step-by-step explanation:

you won't add 2 until you have a whole number, not a fraction.

You don't need to change the direction

and you aren't supposed to change the =, >, <, or any of those signs ever, until you get to where you are multiplying or dividing by a negative number

What is the slope of this line

Answers

Answer:

-4/12

Step-by-step explanation:

Solve for y.
6x + y = 10

Answers

[tex]6x + y = 10 \\ y = 10 - 6x \\ y = 10 - 6x,x∈ℝ[/tex]

Solved✔︎

Answer:

y = 10 - 6x

Step-by-step explanation:

6x + y = 10

=> y = 10 - 6x

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