When Helen jogs, every 20 minutes she checks the total distance she traversed. One day, the first time she checked, Helen had jogged a distance of 2.5 miles, the second time she checked, she had jogged a total distance of 4.8 miles, and the third and final time that she checked, Helen found out that she jogged a total distance of 6.8 miles. What is the difference between her average speeds, in miles per hour, during the first 20 minutes of jogging and the last 20 minutes of jogging?

Answers

Answer 1
Answer

1.5 miles / hour

Step-by-step explanation

She jogged 2.5 miles in the first 20 minutes

Speed = distance/time

2.5 miles / 20 minutes = 0.125 miles / minute

Convert to hours

0.125 • 60 (60 minutes in an hour) = 7.5 miles / hour

She jogged 2 miles (6.8 - 4.8) in the last 20 minutes

2 miles / 20 minutes = 0.1 miles / minute

Convert to hours

0.1 • 60 = 6 miles / hour

7.5 miles / hour - 6 miles / hour

= 1.5

Related Questions

HELP PLEASE!
Isosceles triangle ABC is shown below.
Triangle A B C. Angles B and C are x. Sides C A and B A extend to form an exterior angle at point A with a measure of 22 degrees.

What is the value of x?
22°
79°
136°
158°

Answers

Answer:

Isosceles add upto 180°

To find x =180°-22°=158°

Answer:

x = 79°

Step-by-step explanation:

→ Remember that vertically opposite angles are equal so 22° is opposite to CAB so angle CAB is 22°

CAB = 22°

→ Remember the fact that

Angles in a triangle add up to 180°Base angles in an isosceles triangle are equal

Using the information we form an equation,

2x + 22 = 180

→ Minus 22 from both sides to isolate 2x

2x = 158

→ Divide both sides by 2 to isolate x

x = 79°

There are two right circular cylinders. The radius of the first cylinder is 4 centimeters, and its height is 5 centimeters. The radius of the second cylinder is 12 centimeters, and its height is also 5 centimeters. What is the ratio of the volume of the larger cylinder to the volume of the smaller cylinder? A. 3:1 B. 5:1 C. 6:1 D. 9:1

Answers

Answer:

D. 9:1

Step-by-step explanation:

The formula for the volume of a cylinder is πr² · h (pi · radius² · height) (use 3.14 for pi).

The two right circular cylinders have the same height. The larger cylinder has a radius that is three times the size of the smaller radius.

4 · 3 = 12

However, in the equation for volume, the radius is squared. Because of this, the larger cylinder is 9 times the size of the smaller cylinder because 3² = 9.

You can check your work by finding the volume of the two cylinders using the volume formula πr² · h:

3.14 · 4² · 5 = 251.2

3.14 · 12² · 5 = 2,260.8

The cylinder with a radius of 12 cm is 9 times the size of the cylinder with a radius of 4 cm.

2.260.8 ÷ 9 = 251.2

Answer:

252.1

Step-by-step explanation:

The box-and-whisker plots below represent the scores for two basketball teams throughout an entire season of games. Which of the two teams had the highest score in a single game?

Answers

Answer:

90

Step-by-step explanation:

*One half of two fifths of x.

Answer: Red Hawks

We can see this by looking at the max value of the bottom box plot. This is the tip of the whisker on the right. This value (115) is larger than the corresponding max for the Gophers (110).

What is the equation, in point-slope form, of the line that
is perpendicular to the given line and passes through the
point (-4, -3)?
2
y + 3 = -4(x + 4)
y + 3= -1/4x + 4)
y + 3 = 1/4x + 4)
y + 3 = 4(x + 4)

Answers

Answer:

the answer is y+3=1/4x+4

A box of cereal is supposed to weigh 13.8 oz, but it's acceptable for the weight to vary as much as
0.1 oz. Write and solve an absolute value inequality to find the range of acceptable weights.

Answers

The answer is 1.0 hope it helped

Subject algebra I just wanted to know if these are good if not please correct me

Answers

Answer:

Correct

Step-by-step explanation:

Everything seems correct.  I would just put the two answers for questions 3 & 4 in the separate boxes, instead of having two answers in each box.

In how many different ways can 6 people be seated at a round table

Answers

120

1x5x4x3x2x1

The nth term is going to be (n-1)

Which is true regarding the graphed function f(x)?
O FO) = 3
O f/5) = -1
Of(3) = 2
Of(2)= -2

Answers

Answer:

The answer is option B

f( 5) = - 1

Hope this helps you

Regarding the graph function f(x), it is only F(5) = -1 that is true. Option B is the correct answer.

The slope (m) of the graph is

m = (4 - 0) / (0 - 4)

m = -1

From general linear equation:  y = mx + c

The equation of the function is;

y = -x + 4

f(x) = -x + 4

Let us check all the options one by one.

If x = 0,

F(0) = 4  This is not true

If x = 5

F(5) = -5 + 4

F(5) = -1  This is true.

Therefore, regarding the graph function f(x), it is only F(5) = -1 that is true. Option B is the correct answer.

Learn more about Function here : https://brainly.com/question/17043948

Bob traveled 90 miles which was 83 1 3 % of his entire trip. How many miles did he have left?

Answers

The answer is going to be 7

Answer:

Bob has 18 more miles to go

Step-by-step explanation:

90 ÷ 83 1/3 • 100 = 108

108 - 90 = 18

18 miles

explain the words and the connections of population ,area, urban,and density

Answers

Step-by-step explanation:

1. Population Area: this can be defined as a group of similar species

                                  inhabiting/ co-existing in a defined location or space

2. Urban population: urban areas are often more developed areas with                                                                   greater population than rural environments

                                   it's the people living in cities.

3. Population density: this  is a measurement of population per unit area..

Reflection over the y-axis and a translation of shifting down 7 units.

Answers

Answer:  (-x, y-7)

Step-by-step explanation:

A reflection across the y-axis changes the sign of the x-value.

(x, y)   →  (-x, y)

Shifting down 7 units subtracts 7 from the y-value.

(-x, y)   →   (-x, y-7)

This is a trigonometry related problem, but I don't understand the question itself, finding the missing sides when it appears all the sides are given, as well as all the angles. Can someone help me out with this question? Thanks!

Answers

Problem 13

Answer: Choice C. x = 7*sqrt(2), y = 7

----------------------------

Explanation:

For any 45-45-90 triangle, the legs are the same length. One leg is 7, so the other leg is 7 as well. This means y = 7.

The hypotenuse of a 45-45-90 triangle is equal to sqrt(2) times the length of either leg. So that leads to 7*sqrt(2) being the hypotenuse. You can use the pythagorean theorem to solve 7^2+7^2 = x^2 to confirm that x = 7*sqrt(2)

============================================================

Problem 14

Answer:   Choice D. x = 3, y = sqrt(3)

------------------------------

Explanation:

The hypotenuse is 2*sqrt(3). Take half of this to get sqrt(3), which will be the length of the short leg y. So y = sqrt(3)

Multiply the short leg's length with sqrt(3) to get the length of the long leg

In other words,

long leg = (short leg)*sqrt(3)

long leg = sqrt(3)*sqrt(3)

long leg = sqrt(3*3)

long leg = sqrt(9)

long leg = 3

Therefore, x = 3

All of this applies to 30-60-90 triangles only. Like with problem 13, if you know two sides of a right triangle, you can use the pythagorean theorem to solve for the third missing side.

The figure shows the cross section of a tunnel which was
dug through a mountain. Rectangle MNPQ is 40 feet by
20 feet. Arc NOP is a semicircle.
O
N
-P
M
Q
If the length of the tunnel is 1050 feet, find the volume of
dirt and rock that was dug out to create the tunnel. (Round
answer to the nearest 100.000 cubic feet.)​

Answers

Answer: approximately 1,500,000 cubic feet

This is the same as 1.5 million cubic feet

======================================================

Work Shown:

area of rectangle = length*width

area of rectangle = 40*20

area of rectangle = 800 square feet

area of semicircle = 0.5*(area of circle)

area of semicircle = 0.5*pi*r^2

area of semicircle = 0.5*pi*20^2

area of semicircle = 200*pi .... exact area

total area = (rectangle area) + (semicircle area)

total area = 800 + 200pi

total area = 1428.31853 approximately

-----------------

Multiply this with the length of the tunnel to get the volume

volume of tunnel = (cross sectional area)*(length of tunnel)

volume of tunnel =  1428.31853*1050

volume of tunnel = 1,499,734.4565

Rounding to the nearest 100,000 cubic feet, we get roughly 1,500,000 cubic feet as the approximate volume.

The sum of two consecutive integers is 61. What are the integers?
Include a let statements and checks in your answer.

Answers

Answer:

30, and 31

Step-by-step explanation:

Let n=the smaller of the two integers

n+n+1=61

2n+1=61

2n=60

n=30

Answer:

30, and 31

Step-by-step explanation:

Let the "x" mean the smaller of the two integers

x+x+1=61

2x+1=61

2x=60

x=30

CHECK:

30+30+1=61

2(30)+1=61

60+1=61

61=61 ✓

HOPE THIS HELPS

Factor Completely: 3x2 + 9x - 30

Answers

Answer:

3(x-2)(x+5)

Step-by-step explanation:

1. Factor out common term 3

3(x^2 +3x-10)

2. Factor (x^2 +3x-10)

3(x-2)(x+5)

5. Which model is most appropriate for the data shown in the graph below?


Answers

Hey there! :)

Answer:

Exponential.

Step-by-step explanation:

Exponential is the best choice because the graph is increasing geometrically. This means that the parent function of the equation looks like this:

[tex]f(x) = a(b)^{x}[/tex]

The shape of this equation will resemble an curve that has a horizontal asymptote that the graph will not intersect.

We can also narrow down each choice:

a) Quadratic. Incorrect because the graph pictured is not a parabola.

b) Linear. Incorrect because the rate of change is not constant, and the graph is not a straight line.

c) Most probable answer.

d) Incorrect.

Chicken is normally $2.15/ib.but if you purchase 26 pounds for $41.34,how much do u save per pound

A$0.19
B$0.26
C$0.56
D0.79

Step by step explanation

Answers

Answer:

C. $0.56

Step-by-step explanation:

26 x $2.15= $55.9

$55.9 - $41.34= $14.56

$14.56 / 26= $0.56

Answer:

You'd be saving $0.56 per pound of chicken.

Step-by-step explanation:

The regular price for 26 lb of chicken would be ($2.15/lb)(26 lb) = $55.90.

Subtracting $41.34 from that figure, we get $14.56.

Dividing that result by 26 lb results in $0.56.

You'd be saving $0.56 per pound of chicken.

A rectangle has a perimeter of 269.4 miles and a base of 77.6 miles. What is the height?

Answers

Answer:

you have to divivide both number to find the height=57.1

Step-by-step explanation:

Step-by-step explanation:

Perimeter = 2×(Height × Base)

269.4 = 2(Height × 77.6)

269.4 = 155.2 × 2Height

2Height = 114.2

Height = 57.1 miles

Plz help asap!!!!!!!

Answers

282600 yards because the formula is pi times radius squared. The radius was 300

PLEASE HELP! ILL REWARD BRAINLIEST

Answers

Please take a look at this picture. The intersection point is at (2, 0)

If you need help with graphing, you can use the Desmos graphing calculator.

Hope I helped!

Answer: (2,0)

Step-by-step explanation:

the amount of fluid that a three dimensional object can hold is called

Answers

Answer:

Volume

Step-by-step explanation:

Volume is the space of a three-dimensional object, that can hold an amount of fluid.

Answer:

The answer is the Capacity or volume.

Step-by-step explanation:

This is usually measured in the metric system using a basic unit.

Help with this question(will gove thanks and brainlist)(Your suppose to determine the pattern and then fill in the 3 blanks)

Answers

Answer:

Step-by-step explanation

1.  8/9, 9/9, 10/9

2.  1/64, 1/128, 1/256

3.  -39, -48, -57

Answer

8/9,1,1 1/9

1/64, 1/128, 1/256

Step-by-step explanation:

the second sequence you just add1\9 each time then the other one you just double the denominator.

steve can run 3.5 miles in 30 minutes. if he increases his rate by 1/2 mile per hour, how far will he run in 2 hours?​

Answers

Answer:

15 miles

Step-by-step explanation:

Currently, he can run 3.5 * 2 = 7 mph. Adding 1/2 mph to that gives us 7.5 mph, so therefore, in 2 hours he can run 7.5 * 2 = 15 miles.

Answer:

15

Step-by-step explanation:

because its correct just did the thing.

Solve the equations to find the number and type of solutions. The equation 8 − 4x = 0 has real solution(s).

Answers

Answer:

its 1

Step-by-step explanation:

no cap

Answer:

1,2,1,2 answers for the rest of the question

Step-by-step explanation:

help i not smart plz

Answers

Answer: The third one

Step-by-step explanation:

4d-6<18 Add six to both sides

4d<24 Divide both sides by 4

d<6 It is an open circle because it is not less than or equal to

ANSWER: The Third Graph

STEP BY STEP:

4d - 6 < 18
+ 6 + 6
4d < 24
/4 /4
d < 6

The < means less than :
- open circle
- pointing to the left

What transformations were applied to ABC to obtain A'B'C'?
A. rotate 180 degrees counterclockwise, then shift 3 units down
B. rotate 270 degrees counterclockwise, then shift 3 units down
c. rotate 180 degrees counterclockwise, then shift 3 units up
D. rotate 270 degrees counterclockwise, then shift 3 units up
O

Answers

A
You can also find this on google

The required transformation is to rotate 270 degrees counterclockwise, then shift 3 units down. Option B is correct.

What is the geometry across the coordinate plane transformation?

Transform the coordinate plane's shapes by translating, rotating, or reflecting them. In the 19th century, Felix Klein introduced transformational geometry, a novel perspective on geometry.

Here,
In the graph, triangle ABC is transformed into triangle A'B'C' by a combination of rotation and translation. First, the triangle is rotated 270 degrees counterclockwise around the origin. Then, the resulting triangle is shifted 3 units down.

Thus, the required transformation is to rotate 270 degrees counterclockwise, then shift 3 units down. Option B is correct.

Here's where you can find out more about transformation: brainly.com/question/18065245
#SPJ7


Which student correctly solved their equation below?

a. Emery
b. Savannah
c. Both students
d. Neither student

Answers

Answer:Savannah

Step-by-step explanation:Just subsitute the variables for the nuber they said it is equal to and if it is true then it is correct

Answer: Savannanah  subsitute the variables for the number they said it is equal to and if it is true then it is correct

Fill in the missing values in the pattern:

-7, , 3, , 13,...

Answers

-7, -2, 3, 8, 13....

Answer:

-2 and 8.

Step-by-step explanation:

The difference between 3 and -7 = 3 - -7 = 10

and between 13 and 3 = 10 also.

So the missing 2 numbers are -5 + 5 = -2

and 3 + 5 = 8 so the pattern is

-7, -2, 3, 8, 13  where the common difference is 5.

last algebra question if i get it correct

Answers

Answer:

(3, 0)

Step-by-step explanation:

Step 1: Find slope

m = (-48 + 64)/(-15 + 21)

m = 8/3

y = 8/3x + b

Step 2: Find b

-32 = 8/3(-9) + b

-32 = -24 + b

b = -8

Step 3: Write linear equation

y = 8/3x - 8

Step 4: Find x-intercept

0 = 8/3x - 8

8 = 8/3x

x = 3

Answer:

The correct answer is (3, 0)

Hope this help!

In which quadrant does the point (25 , 21) lie? A. Quadrant I B. Quadrant IV C. Quadrant III D. Quadrant II

Answers

A) Quadrant 1

Not 2,3,4

Answer:

A

Step-by-step explanation:

Both of the coordinates are positive. The quadrant that has points with positive x and y coordinates is Quadrant I.

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