The time, t, it takes a runner to cover a specified distance is inversely proportional to the runner's speed. If Jann Avery runs at an average of 6 miles per hour, she
will finish a race in 2. 1 hours. How long will it take Jackie Donofrio, who runs at 4 miles per hour to finish the same race?

Answers

Answer 1

To solve this problem you will need this tool, it is the formula of speed :

speed = distance/time

(I suggest you to remember this one for life, it is a really useful one)

Let's check how long that Jackie nice dude will take to finish the race...

Jann avery runs at an average of 6 mph (miles per hour), so we already got the speed for our formula. And she will finish the race in 2.1 hours so we got the time. What do we miss ? The distance.

Let's write what we already know to solve this puzzle :

6 = d / 2.1

Where d is that unknown distance..  So we are in front of an equation here let's solve it :

d / 2.1 = 6

d = 6 * 2.1

d = 12.6 miles

Now that we know that distance, for the race, we can see if that poor Jackie Donofrio has all his chances to catch Jann Avery...

We already know his speed... and since we have the distance, we write :

4 = 12.6 / t

Where t is the unknown time, for Jackie, to finish the same race. Let's solve the equation :

4t = 12.6 (we multiplied t on each side of the equation)

t = 12.6 / 4

t = 3.15

Jackie Donofrio, who runs at 4 miles per hour, will finish the race in 3.15 hours

Good Luck


Related Questions

If you and 2 friends went to dinner and the bill was $57.90 after taxes and you wanted to leave a 25% tip. How much total would you have to pay each? (round to the nearest hundredth)

Answers

Answer:14.48

sorry if it is wrong.

Step-by-step explanation:0.25*57.90=14.475

1 point
10.) Tampa is about 275 miles from Tallahassee. How far about would they
be on a map with a scale of 1 in. = 15 mi?
20 inches
20.25 inches
O
19.24 inches
18.33 inches

Answers

Answer:

18.33

Step-by-step explanation:

its easy divide 275 ÷ 15 = [18.33]333333333333 the only number you need is [18.33]333333333333

and boom that simple you get your answer

What is the fourth equivalent fraction to 6/7

Answers

Answer:

3/4 is equivalent to 6/7

Hey there!

Equivalent fractions have the same value. Here are some fractions that are equivalent to 6/7:

[tex]\frac{6}{7} =\frac{12}{14} =\frac{18}{21} =\frac{24}{28} ...[/tex]

Hope it helps. Please let me know if you have any questions.

~An excited gal

[tex]MagicalNature[/tex] here to help

(2/3)³×(-3/4)²×(-1)²⁰⁰³
(2/5)²×(-5/12)³

Answers

Answer:

Step-by-step explanation:

[tex](-1)^{n} = -1 , if \ n \ is \ a \ odd \ integer\\\\\\\\(-1)^{2003} =-1 \\\\(\dfrac{-3}{4)}^{2}=\dfrac{3}{4}, \ as \ 2 \ is \ even \ number.\\\\(\dfrac{2}{3})^{3}*(\dfrac{-3}{4})^{2}*(-1)^{2003}=\dfrac{2^{3}}{3^{3}}*\dfrac{3^{2}}{4^{2}}*(-1)\\\\\\=\dfrac{2^{3}}{3^{3}}*\dfrac{3^{2}}{2^{4}}*(-1)\\\\\\=\dfrac{-1}{3^{3-2}*2^{4-3}}\\\\\\=\dfrac{-1}{3^{1}*2^{1}}\\\\=\dfrac{-1}{6}[/tex]

[tex](\dfrac{2}{5})^{2}*(\dfrac{-5}{12})^{3}=\dfrac{2^{2}}{5^{2}}*\dfrac{(-5)^{3}}{(2^{2}*3)^{3}}\\\\\\=\dfrac{2^{2}}{5^{2}}*\dfrac{- 5^{3}}{2^{6}*3^{3}}\\\\\\= -\dfrac{5^{3-2}}{2^{6-2}*3^{3}}\\\\\\= -\dfrac{5}{2^{4}3^{3}}\\\\= -\dfrac{5}{16*3}\\\\\\= \dfrac{-5}{48}[/tex][tex]HINT: \dfrac{a^{m}}{a^{n}}=a^{m-n}, m >n\\\\\\\dfrac{a^{m}}{a^{n}}=\dfrac{1}{a^{n-m}}, n >m\\\\\\(a^{m})^{n}=a^{m*n}[/tex]

1. A length of rope is stretched between the top edge of a building and a stake in the ground. The
head of the stake is at ground level. The rope also touches a tree that is growing halfway
between the stake and the building. If the tree is 38 feet tall, how tall is the building?
stake
38 ft.
O 19 ft.
076 ft.
57 ft.

Answers

Answer:

I want to say the building is most likely 76 ft tall

help me please. i have been doing this for a long time

Answers

Answer:

I am deeply sorry.

Step-by-step explanation:

I am really sorry about how long it takes you to do "this". My best advice is to take a break and think it out slowly.

2q+6=12. 2q=6. Q= plz help me

Answers

Answer:

2q=6       Subtract both sides by 6

q=3          Divide both sides by 2

Step-by-step explanation:

2q+6=12

2q=6       Subtract both sides by 6

q=3          Divide both sides by 2

Hope this helps :)

Answer:

Well this is common algebra

So you want to isolate the variable so in this case you subtracted 6 on both sides.

Now you jsut divide both sides by 2 which is 2q/2=q

6/2=3

q=3

Help please important if you help you get brain lay

Answers

[1] 1/2

    - It will be 1/2 as large because of the scale factor

[2] 1/4

    - 1/2 * 1/2 = 1/4

[3] (1/2)n

    - For every scale factor (n), there will be a chance of 1/2

Have a nice day!

  I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

sebuah mobil dalam 12 km menghabiskan bensin 1 liter. apa bila mobil menempuh jarak 96 km ,maka bensin yang di butuh kan adalah__liter

Answers

☆Jawaban :

[tex] \frac{12}{1} = \frac{96}{x} [/tex]

[tex] 12x = 96[/tex]

[tex]x = \bold{8liter}[/tex]

What's the Answer of 5+5=09

Answers

Answer:

5+5=10

Step-by-step explanation:

i dont understand

:') kdhsafhiusijuasjksavbaubdhbsaiuvbasofa

Answers

Answer:

reatsrhgfdwdqewrgtyj :'(

Step-by-step explanation:

could you provide the polygons so I can answer?

podria proporcionar el poligono que puedo responder?

PLEASEEE HELP ME WITH THIS!!!

Answers

Answer:

m∠H = 10°

Step-by-step explanation:

ΔFGH is an isosceles triangle. I made a diagram, so m∠F ≅ m∠H by B.A.T(base angle theorem). This is because an isosceles triangle have to congruent sides and angles.

Diagram is attached:

-Chetan K

Theresa created a piece of art by attaching a square plank to a triangular plank. The square plank has a perimeter of 48 inches. The triangular plank has a base length of 12 inches and a height of 6 inches. She wants to cover the piece of art with colored paper.

How many square inches of paper are needed to cover Theresa's art piece?

Answers

Answer:

180

Step-by-step explanation:

Answer:

180

Step-by-step explanation:

The perimeter of the square is 48. The Square has 4 sides so 48/4 = 12.

One side of the square is 12. Use [tex]12^{4}[/tex] to calculate the area. [tex]12^{4}[/tex] = 144.

Triangle base = 12 and height = 6. 12 times 6 divided by 2 = 36.

144 + 36 = 180

3/4 ÷ 1/2 +1 ddgngadgaekyfyuktyjrthrgefwretrytjyktuli;obpnML"NKP?boliykujhtgrfedw

Answers

Answer:

5/2

Step-by-step explanation:

alternative = 2 1/2 , 2.5

What is the Factor of 3/9+8/9

Answers

Step-by-step explanation:

the lcm is 9 so....

3/9+8/9

multiply both sides by their lcm which is 9...

so....

9 (3/9)+9 (8/9)

3+8=11

This is the last one! Picture is provided!!

R is the midpoint of AC, and S is the midpoint of BC.
AB = 12
Find RS.

Answers

Answer:

RS = 6

Step-by-step explanation:

The line joining the midpoints of 2 sides of a triangle is half the length of the third side, that is

RS = [tex]\frac{1}{2}[/tex] AB = [tex]\frac{1}{2}[/tex] × 12 = 6

112781+89809030248234812394124-8

Answers

Answer:

See picture

Step-by-step explanation:

My calculator only allows numbers up to 15 digitss-

djsjdjcvfb

Here

Work

Picture

I just want the points so please tell me I didn't just waste my time :'D

plz help will mark as brainliest​

Answers

The 3 sides are 8, 12 and 16.

Answer:

the three sides are 8, 12 and 16

Step-by-step explanation:

since the ratio is in 2:3:4, we need to work out each side individually so add them=2+3+4=9

9n=36, n=4

2:3:4

2 × 4 = 8

3 × 4 = 12

4 × 4 = 16

Is that the right answer

Answers

Answer:

25.12 square feet

Step-by-step explanation:

Area of a circle

a = 3.14 * r^2

a = 3.14 * 4^2

a = 3.14 * 16

a = 50.24

Since this is a semi-circle the area is half the circle

a = 50.24/2

a = 25.12 square feet

A triangle has sides with lengths of 16 meters, 7 meters, and 12 meters. Is it a right triangle?

Answers

No because all the sides don’t add up to 90 degrees

if marsha deposited 9,500$ into a savings acc 4 years ago The simple interest rate is 2% how much money did masha earn

Answers

Answer:

Kasha earned $10,260.00

Step-by-step explanation:

The total amount accrued, principal plus interest, from simple interest on a principal of $9,500.00 at a rate of 2% per year for 4 years is $10,260.00.

Find two numbers whose difference is 16 and whose product is a minimum. (Enter your answers as a comma-separated list.)

Answers

Answer:

8, -8

Step-by-step explanation:

  Let's say that x is the larger number,

x - y = 16

y = x - 16

xy = P  where P is a minimum  

x(x-16) = P.  

(We can find the vertex, which is the minimum, by writing it in vertex format)  

  Completing square:  

x2 - 16x = P  

x2 - 16x + 64 = P + 64  

(x - 8)2 = P + 64.

 So,

x = 8 and -8

(8 - -8 -> 8 + 8 = 16)

Have a nice day!

  I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

HURRY PLEASE I NEED HELP

Answers

the answer is 8y-3x=32

i just used desmos graphing calculator to answer this question

PLSSSSS I WILL MARK BRAINLIEST PLSSSSSS
Raven is making pillows. Each pillow requires 1/3 yard of fabric. Raven has 6 yards of fabric. How many full pillows can she make?????????????????????????????????

Answers

Answer:

10

Step-by-step explanation:

3/5 simpilfied is 0.6

So 6/0.6 = 10

6 divided by 3/5 is 10

please help this is a hard question and i just cant figure it out

Answers

Answer:

y=x+6.

Step-by-step explanation:

the slope-interception form is: y=s*x+i, where s - slope, i - interception.

according to the data in the graph i=6, s=1, then finally,

y=x+6.

.Question.[Mathematics]

6! =

7! =

Answers

[tex] \: \: \: \: \: \: [/tex]

[tex]6! = 720 \\ \\ 7! = 5040[/tex]

Step-by-step explanation:

[tex]6![/tex]

Usen! -n × ( n - 1 )×...× 2 x 1 to = calculate the factorial

[tex]6 \times 5 \times 4×3× 2×1[/tex]

calculate the product

[tex] = 720[/tex]

[tex]7! = [/tex]

Usen! - nx(n-1)×...*x2x1 to = calculate the factorial

[tex]7 \times 6 \times 5 \times 4×3×2×1[/tex]

calculate the product

[tex] = 5040[/tex]

hope it helps

[tex] \: \: \: \: \: \: \: [/tex]

Answer:

720 and 5040

Step-by-step explanation:

Using the definition of n! ( n factorial )

n! = n(n - 1)(n - 2) ...... × 3 × 2 × 1

6! = 6 × 5 × 4 × 3 × 2 × 1 = 720

7! = 7 × 6 × 5 × 4 × 3 × 2 × 1 = 5040

How do I solve this question? The wording is confusing to me

Answers

Step-by-step explanation:

Use Pythagarus theorem

17^2=15^2 +x^2

289= 225 + x^2

64=x^2

x = 8 m

find x.
please i need help!!

Answers

Step-by-step explanation:

sin45°=x/4√2

=> 1/√2 = x/4√2

=> x= 4√2/√2

=>x= 4.

hope this helps you.

The question is an illustration of right-angled triangles

The value of x is (b) 4

To calculate the value of x, we make use of the following sine ratio

[tex]\sin(45) = \frac{x}{4\sqrt 2}[/tex]

Multiply both sides of the equation by [tex]4\sqrt 2[/tex], to make x the subject of the formula

[tex]x = \sin(45) \times 4\sqrt 2[/tex]

Evaluate sin(45)

[tex]x = \frac{1}{\sqrt 2} \times 4\sqrt 2[/tex]

Cancel out the common factors

[tex]x = 4[/tex]

Hence, the value of x is (b) 4

Read more about right-angled triangles at:

https://brainly.com/question/16195823

HELP ASAP. Dilation scale=2, center (5,4)
Graph the new points

Answers

Answer:

3.5

Step-by-step explanation:

Giving brainliest to correct answer
1/4 + 1/3 + 11/12 6/15 + 3/10 + 3/5
4/5 + 3/15 - 2/3 4 2/5 + 5 2/6

Answers

Answer:

#1) 3/2 #2) 13/10 #3) 1/3 #4) 49/15

Step-by-step explanation:

This may not be right because I don't know if you wanted the answers in fractions or not, but I tried. There's too much work to show. Sorry.

Other Questions
Jeannette is 82-years old, but participates in balance training that reduces her risk of falls. This balance training increases what component of Jeannette's physical fitness compare the segregated south during the great depression era to our time and place today. using evidence from the text, how are we similar? how are we different? (to kill a mockingbird) whats the answers can anyone answer this question please if i was night time but the sun is still out and the moon i out to it will be night or day timeA daytime B night time C both D none up above Expressions with Hacer1. Put the following words in the correct order (1, 2, 3, 4) to express how long someone has been doing something.quehacetrabajo aqutres aos.2. Put the following words in the correct order to express how long someone has been doing something.hacetreinta minutosqueesperamos 3. Put the following words in the correct order to express how long someone has been doing something.hacemi mam cocinaquedos horas4. Put the following words in the correct order to express how long someone has been doing something.hacedesdeTengo un tos6 das5. Put the following words in the correct order to express how long someone has been doing something.3 aosdesdehaceJuego al baloncesto PLEASE HELP QUICK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! MY QUESTION KEEPS GETTING DELETED FOR NO REASON!!!!!!!!!Which is true about water molecules?A. Water molecules are nonpolar, meaning their charges balance each other out.B. Water molecules are polar, meaning they have a net partial negative charge.C. Water molecules are polar, meaning they have partial negative and positivecharges.D. Water molecules are nonpolar, meaning they do not interact with each other. complete the diagram by writing your plans and then draw your dream marriage life in the heart Intended for it. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!8 plss help me..Consultative or Frozen communicative style. 1. Jake asks his teacher's advice on their group project. Mushroom is a fungi. A parking area that is to be resurfaced is shaped like a trapezoid. The bases are 90 feet and 100feet, and the height is 30 feet. What is the cost if the price of the resurfacing is $1.10 per squarefoot? Answer in a whole dollar amount, without the dollar sign. the reappearance, after a time lapse, of an extinguished cr is called Which of the following types of agriculture is most likely to use economies of scale?BiodynamicConservationIndustrialSlash-and-burn anatomy of the skeletal system Brianna understands that her father is crying because his best friend died. This shows that Brianna has developed: True or false ? The Tax Court is a court established by Congress, The New Kingdom of Egypt declinedbecause ofA. financial troublesB. droughtC. warD. all of the above From Latin adamant. hardest metal or diamondWhat might it mean to call a person adamant?O A. The person collects precious metals.O B. The person appreciates fine jewels.O C. The person does not stand up for herself.O D. The person is stubborn or insistent. help for this question, please and thanks Can someone help with this please?