1. A circular running track is 1/4 mile long. Elena runs on this track, completing each lap in 1/20 of an hour. What is Elena's running speed, in miles per hour?

Answers

Answer 1

Answer: Elena's running speed = 5 miles per hour.

Step-by-step explanation:

Length of track = [tex]\dfrac14 \text{ mile}[/tex]

Time taken to complete one lap = [tex]\dfrac{1}{20}[/tex] of an hour.

Elena's running speed = [tex]\dfrac{Distance}{Time}[/tex]

[tex]=\dfrac{\dfrac14}{\dfrac1{20}}\text{ miles per hour}\\\\=\dfrac{20}{4}\text{ miles per hour}\\\\=5\text{ miles per hour}[/tex]

Hence, Elena's running speed = 5 miles per hour.


Related Questions

I need help who can help me ??

Answers

Answer:

Step-by-step explanation:

10

A popular hardware store is having a spring sale on gardening supplies. If a bag of potting soil usually sells for $15.99, how much money can one save if it's discounted by 10%?

Answers

Answer: $1.60

Step-by-step explanation:

Bag of soil normally sells for $15.99.

If it is discounted by 10%, a person can save:

= 15.99 * 10%

= 1.599

= $1.60

How do I know if an equation has one solution no solution or infinitely many solutions?

Answers

Answer:  If the equation ends with a false statement (ex: 0=3) then you know that there's no solution. If the equation ends with a true statement (ex: 2=2) then you know that there's infinitely many solutions or all real numbers.

Step-by-step explanation:

The price of a car was bought for $20,000 and has depressive 15% yearly find the price of the car in 6 years

Answers

Answer:

7542.99

Step-by-step explanation:

20,000(0.85)6

please i’m so confused please helpp

Answers

Answer:

∠5=∠7=∠6=∠8=143°

∠4=∠2=∠1=37°

Step-by-step explanation:

∠4=180-∠6=180-143=37°

Kristen and her brothers had a pizza divided into 10 slices. She and her two
brothers ate a total of 5 slices. What fraction of the pizza did they eat?

Answers

Answer:

1/2

Step-by-step explanation:

1/2 because half of 10 is 5

3. Kathy earns a 6% commission on every house she sells. How much
commission would Kathy make on the sale of a $650,000 house
A. $3.900
B. $39.000
C. $390,000
D. $3.900.000
Please please help

Answers

Answer:

The correct answer is Option B: $39000

Step-by-step explanation:

Given that

Price of House = P = $650000

Rate of commission = r= 6%

In order to calculate the commission amount of Kathy, we only have to calculate 6% of $650000 or by simply multiplying the price by 0.06

So,

[tex]Commission = 6\%\ of\ 650000\\=0.06*650000\\=39000[/tex]

The commission is: $39000

Hence,

The correct answer is Option B: $39000

What degree of rotation about the origin will cause the triangle below to map
onto itself?

A. 360°
B.90
C.180
D.270

Answers

A is the answer as it will go in a full circle in order to map onto itself

The degree of rotation about the origin will cause the triangle below to map onto itself is 360 degree.

Option A is correct.

What is Transformation?

A point, line, or geometric figure can be transformed in one of four ways, each of which affects the shape and/or location of the object. Pre-Image refers to the object's initial shape, and Image, after transformation, refers to the object's ultimate shape and location.

In the figure ABCD, is transformed to figure A'B'C'D'.

A figure will be mapped onto itself if it circles the graph 360 degrees.

As there are 360 degrees in a circle, the figure has just completed a full circle and returned to where it was before rotating.

Learn more about transformation here:

https://brainly.com/question/11709244

#SPJ5

Solve the inequality and graph the solution on the line provided.
3 + 8x < 67
>
<
>
or
Inequality Notation:
Number Line:
-12
-10
-8
-6
-4
-2
O
2
4
6
8
10
12
Clickand drag to use

Answers

Answer: x < 8

                       <--------------------------------------- *

__________________________________________________

-7  -6  -5  -4  -3  -2  -1  0  1  2  3  4  5  6  7  8  9  10  11  12  13  14  

Step-by-step explanation:

20 POINTS!!!!!
w + 4 = - 6

Answers

Answer: w= -10

Step-by-step explanation: move all terms not containing w to the right side of the equation

HELP ASAPPPP PLZ N THX U SM

Answers

I CANR SEE IT that well


Write 4:5 in the form n:1

Answers

Answer:

0.8

Step-by-step explanation:

5 is divided by 5 to get to 1. Divide 4 by 5 to get 0.8.

In a ratio, whatever you do to one side you have to do to the others.

Answer:

it will be

4/5 : 1 or 0.8 : 1

in n : 1 form

helppppppppppppppppppp

Answers

Answer:

c =2

Step-by-step explanation:

2(6c+2)+3c=2 (19 -c)

1. Distribute

2(6c +2 ) + 3c = 2 ( 19 - C )

12c + 4 +3c = 2 (19 - C )

2. Combine like terms

12c + 4 + 3c = 2 ( 19 - c )

15c + 4 = 2 (19 - c )

3. Rearrange terms

15c + 4 = 2( 19 - C )

15c + 4 = 2 ( -c + 19 )

4. Distribute

15c + 4 = 2 ( -c + 19 )

15c + 4 = -2c + 38

5. Subtract 4 from both sides of the equation

15c + 4 = -2c + 38

15c + 4 -4 = -2c + 38 -4

6. Simplify

Subtract the numbers

Subtract the numbers

15c = -2c +34

7. Add 2c to both sides of the equation

15c = -2 +32

15c +2c = -2c + 34 + 2c

8. Simplify

Combine like terms

Combine like terms

17c = 34

9.Divide both sides of the equation by the same term

17c = 34

17c/17 = 34/17

10. Simplify

Cancel terms that are in both the numerator and denominator

Divide the numbers

c = 2

Find the value of each variable in the parallelogram.

Answers

Answer:

m = 8

k = 7

Step-by-step explanation:

Diagonals of a parallelogram bisect each other. This implies that:

m = 8, also,

k + 4 = 11

k = 11 - 4 (subtraction property of equality)

k = 7

Can anyone please help me?

Answers

Answer:

You multiply 5 by 1/5 to get 1. So with 2x, you multiply by 1/(2x) to get 1. That's about all you know, since we only know that x is positive.

Step-by-step explanation:

Hope it helps

Answer:

[tex]\frac{25}{10x-1}[/tex]

Step-by-step explanation:

The multiplicative inverse of "a" is " [tex]\frac{1}{a}[/tex] "

a × [tex]\frac{1}{a}[/tex] = 1

~~~~~~~~~~~

[tex]\frac{1}{5}[/tex] ( 2x - [tex]\frac{1}{5}[/tex] ) = [tex]\frac{2}{5}[/tex] x - [tex]\frac{1}{25}[/tex]

1 ÷ ( [tex]\frac{2}{5}[/tex] x - [tex]\frac{1}{25}[/tex] ) = 1 ÷ ( [tex]\frac{10x}{25}[/tex] - [tex]\frac{1}{25}[/tex] ) = 1 ÷ ( [tex]\frac{10x - 1}{25}[/tex] ) = [tex]\frac{25}{10x-1}[/tex]

The multiplicative inverse of the product is  [tex]\frac{25}{10x-1}[/tex]

And here we go! Please answer! IMPROPER!!!!!

Answers

Answer:

5/4

Step-by-step explanation:

1/4 times five = 1/4 + 1/4 + 1/4 + 1/4 + 1/4 = 5/4

Answer:

1 1/4 = 5/4. Answer in improper fraction

Answer

HELP ME PLEASE I NEED HELP

Answers

Answer:

D.

Step-by-step explanation:

7>=3+p

first, subtract 3 from both sides, getting 4>=p or p<=4

Graph it!

Closed circle at 4, follow direction of inequality sign, going to left. so arrow is going left from 4

what is 1 2/5 × x = 7​

Answers

Answer:

x=5

Step-by-step explanation:

It’s X=5 the answer is x=5

hi im a little confused do u thinm you can help me​

Answers

Answer:

what are you confused on

Step-by-step explanation:

Answer:

yep, whats up

Step-by-step explanation:

what’s the area of the figure for a brianlist !?!

Answers

Answer:

12a^3b^4

Step-by-step explanation:

area of triangle = bh/2

area = 3ab^3 * 8a^2b / 2

area = 24a^3b^4/2

area = 12a^3b^4

The surface of an office desk has an area of 18 square feet. Its perimeter is 18 feet. What are the dimensions of the desk?​

Answers

Answer:

the dimensions are 3 and 6 feet

Step-by-step explanation:

xy=18

x+y=9

x=9-y

y(9-y)=18

-y^2+9y -18=0

y^2-9y+18=0

(y-6)(y-3)=0

if y=6, x=3

if y=3, x=6

Find the rate of change

Answers

Answer:

non linear

Step-by-step explanation:

you can see it doesnt go up a specific number each time, aka changes each time, therefor its  non linear

Answer:

2

Step-by-step explanation:

Use the method

 

Change in output  / Change in input

The input progresses by 1, and y progresses by 2.

We will plug the numbers in.

2/1

Then simplify.

2/1 = 2

Hence, the rate of change is 2.

What is the slope of a line that passes through the points (–3, 2) and (–6, 5)?

A. 1
B. -3
C. -1
D. 1/3

Answers

The answer is A. One / 1

Answer:

The answer is C. -1

Which expression is equivalent to the following complex fraction?
2-
V
3+
1
3y + 1
2y-1
h
on
cs
(2x-1)(3+1)
le
ole
(-1*81
2y-1)(3y + 1)
2y-1
3y + 1
Mark this and return
Save and Exit
Nexi
Submit

Answers

Answer:

pls rewrite the question

Step-by-step explanation:

pls rewrite

3-ACT mathematical modeling: powering down answer act 1 and act 2 please

Answers

Answer:

hi

Step-by-step explanation:

sup

A store is going out of business. Everything is marked down 40%. How much do you pay now for an item that used to cost $150? Explain how you got your answer.

Answers

Answer:

You would pay $90 now for an item that used to cost $150.

Step-by-step explanation:

Here's how I thought of it. There are two ways to solve this problem.

Because we know that the item is discounted by 40%, that leaves 60% of its price left. (100% price - 40% price = 60% price).

Thus, you would multiply $150 by 0.6 (or, 60% in decimal form), which equals $90.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Alternatively, you could also multiply $150 by 0.4 and just subtract what you get from the total. That number is 60, and $150 - $60 = $90.

Use whichever way makes more sense to you!

Use the distributive property to remove the parentheses
(v +5)5

Answers

Answer:

5v + 25

Step-by-step explanation:

Why I'm even answering?

A map has a scale of 1 inch : 3 miles.
How far are two airports apart if they are 6 inches apart on the map?

Answers

the answer is 18 inches

Can anybody solve this? Will give out 20 POINTS if you are SMART!

Answers

Answer:

⬇️

⬇️

⬇️

⬇️

⬇️

⬇️

⬇️

Answer:

11x^2- 16x- 4

Step-by-step explanation:

PLSS HELP WILL MARK BRAINLIEST

Answers

Answer:

i will try to help, but with what tho?

Step-by-step explanation:

i dont see a question

Answer:

Help you with what

Step-by-step explanation:

Like your pic

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