Mallory walks 7/10 of a mile in 1/5 hour. What is her walking speed in miles per hour?

Answers

Answer 1

Answer:

Here walking speed is 3.5 miles per hour

Step-by-step explanation:

Here, we want to calculate the average speed in miles per hour

mathematically, we know that;

speed = distance/time

from the question, the distance is 7/10 miles

The time is 1/5 hour

Thus we have;

Speed = 7/10 divided by 1/5

speed = 7/10 * 5/1 = 7/2 = 3.5 miles per hour


Related Questions

Pls help meeeee and thank you so so much i don’t know how to do this

Answers

Answer:

The new coordinate after translating the figure are : (- 1 , -2)

Step-by-step explanation:

By using the following a translation mapping rule for this problem:

( x,y) → (x -2, y - 5)

Aisha collects 1p coins and 2p coins. 24 of these are 1p coins. The probability of choosing a 2p coin at random is 1/2 How much money does she have in total?

Answers

Answer:

Aisha has 24 2p coins and 24 1p coins, then she has in total:

2p*(24) + 1*p*(24) = 48p + 24p = 72p

Step-by-step explanation:

Suppose that we have a set of N elements in a bag (if the bag is closed and we put our hand inside to grab one element, we could not distinguish them apart), and K of these elements have a given property (for example, these are red).

The probability of selecting at random one of these red elements is equal to the quotient between the number of elements with that property (K) and the total number of elements in the bag (N)

P = K/N

Now let's go to our problem.

We have 24 1p coins.

We have X 2p coins.

Then the total number of coins is: (24 + X)

We know that the probability of choosing at random a 2p coin is then:

P = X/(24 + X)

And we know that this is equal to 1/2

Then:

X/(24 + X) = 1/2

X = (1/2)*(24 + X) = 24/2 + X/2

X = 12 + X/2

X - X/2 = 12

X/2 = 12

X = 2*12 = 24

Then Aisha has 24 2p coins.

Aisha has 24 2p coins and 24 1p coins, then she has in total:

2p*(24) + 1*p*(24) = 48p + 24p = 72p

The surface of a pedestrian bridge forms a parabola. Let the surface at one side of the bridge be represented by (4,0) and the surface at the other side be represented by (8,0). The center of the bridge is 3 feet higher than each side and can be represented by a vertex of (6,3). Write a function in vertex form that models the surface of the bridge.

Answers

Answer:

y = -3/4(x - 6)^2 + 3

Step-by-step explanation:

y = ax^2 + bx + c

(4, 0)

16a + 4b + c = 0     Eq. 1

(8, 0)

64a + 8b + c = 0     Eq. 2

(6, 3)

36a + 6b + c = 3      Eq. 3

We have a system of three equations in three variables.

Eq. 2 - Eq. 1

48a + 4b = 0      Eq. 4

Eq. 2 - Eq. 3

28a + 2b = -3     Eq. 5

Eq. 4 - 2 * Eq. 5

-8a = 6

a = -6/8

a = -3/4

48a + 4b = 0

48(-3/4) + 4b = 0

4b = 36

b = 9

16a + 4b + c = 0

16(-3/4) + 4(9) + c = 0

-12 + 36 + c = 0

c = -24

The equation of the parabola is

y = -3/4 x^2 + 9x - 24

y = -3/4(x^2 - 12x + 32)

y = -3/4(x^2 - 12x + 36) + (-3/4)32 - (-3/4)(36)

y = -3/4(x^2 - 12x + 36) -24 + 27

y = -3/4(x - 6)^2 + 3

How many tenths are equal to 1/2+4/5?

Answers

answer: 13

1/2+4/5= 13/10 so the answer would be that 13 tenths equal 13/10

What is the value of this expression when c=-4 and d = 10?
1/4(c3+d2)

Answers

Question:-

What is the value of this expression when c = -4 and d = 10 ? [tex] \frac{1}{4} [/tex] (c³ + d²)

Answer:-

Given:-

[tex] \frac{1}{4} [/tex] (c³ + d²) where c = -4 and d = 10

To Find:-

The value of the expression [tex] \frac{1}{4} [/tex] (c³ + d²)

Solution:-

[tex] \frac{1}{4} [/tex] (c³ + d²) [Given expression]

Now, putting the value of c = -4 and d = 10 , we get,

[tex] \frac{1}{4} [/tex] { (-4)³ + (10)² }

[tex] \frac{1}{4} [/tex] ( -64 + 100 )

[tex] \frac{1}{4} [/tex] ( 36 )

[tex] \frac{1}{4} [/tex] × 36

[tex] \bf = \: 9 \: ( Answer ) [/tex]

7,-3,12,-0.8,0.8,-10,-2 if these numbers represent elevations in meters which is the farthest away from sea level?

Answers

Answer:

-10 would be correct

Step-by-step explanation:

-10

#4) Solve the following systems of equations by any method.

x - y = 7

3x + y = 1


A (2,-5)
B (3,-4)
C (2,5)
D (-4,3)​

Answers

A (2,-5) i used the substitution method

will give brainliest!!

Caleb made a sand castle of a pyramid when he was on vacation. His pyramid had a square base with side lengths of 2 feet and a height of 5 ft. How much sand did he use?​

Answers

20ft, just multiply the width, height, and length, which is 2x2x5

5. Find the volume of the cylinder. Leave your
answer in terms of t.
8 cm.radius
8 cm.height

Answers

Answer:

[tex]512\pi[/tex]

use the formula

I need help please thank you

Answers

Answer:

See attachment

Step-by-step explanation:

We can graph this line using the equation given to us. The equation is in slope-intercept form, [tex]y=mx+b[/tex]. In this form, [tex]m[/tex] = slope and [tex]b[/tex] = the y-intercept.

So, we can tell that the slope is -[tex]\frac{1}{5}[/tex] and the y-intercept is (2,0).

We begin by plotting on the graph the y-intercept, (2,0).

The slope also equals the [tex]\frac{rise}{run}[/tex]. The slope is negative, so the line will slope down. From the point we have plotted, we will rise negative 1 unit. This means to move down 1 unit. From this point, we will run 5 units. Because the line is negative, we will move 5 units to the left, not the right. We land on point (5,1).

Now, we will draw a line from these two points. This is the line shown in the equation.

Good luck ^^

I need help please. Honestly I barely understand this.

Answers

Answer:

[tex] - 12288 \div {2}^{11} = - 6 \\ forth \: answer \: is \: correct[/tex]

Answer:

4th option

Step-by-step explanation:

The nth term of a geometric sequence is

[tex]a_{n}[/tex] = a₁ [tex](r)^{n-1}[/tex]

where a₁ is the first term and r the common ratio

To find a₁ use a₁₂ = - 12288 , then

a₁ [tex](2)^{11}[/tex] = - 12288 , that is

a₁ × 2048 = - 12288 ( divide both sides by 2048 )

a₁ = - 6

Then the explicit formula is

[tex]a_{n}[/tex] = - 6 . [tex]2^{n-1}[/tex]

length=2
width=2
height=3

Answers

Answer:

12

Step-by-step explanation:

The computation of the volume of the rectangular prism is shown below:

As we know that

The  volume of the rectangular prism is

= length × width × height

where

Length is 2

width be 2

And, the height be 3

So, the  volume of the rectangular prism is

= 2 × 2 × 3

= 12

what is the equivalent expression for( 7 x 6+7 x y)

Answers

Answer:

7x (y + 6)

x(7 y + 42)

Step-by-step explanation:

What is the solution set of the equation (x - 2)(x - a) = 0

Answers

Answer:

x=2, x=a

Step-by-step explanation:

Find x, y, and z
3
7
Z

Answers

Step-by-step explanation:

If x=3, y=7 when x+y=z

z=3+7

z=10

I'm stuck on two polynomial questions and any help would be greatly appreciated!


1. (4x-3y) is a factor of [tex]a^{2}x^{2} -b^{2}y^{2}[/tex] what is the value of [tex]a^{2} + b^{2}[/tex]?


2. [tex]x^{2} +19x+c[/tex] has a factor of (x+7) what is the value of c?

Answers

Answer:

1) 252) 84

Step-by-step explanation:

#1

a²x² - b²y² = (ax + by)(ax - by)

Since (4x - 3y) is one of the factors, we have:

a = 4, b = ± 3

The value of a² + b² is:

4² + (±3)² = 16 + 9 = 25

#2

x² + 19x + c, has a factor of (x + 7).

It means the equation:

x² + 19x + c = 0 has one root of x₁ = -7.

Sum of the roots:

x₂ + (- 7) = -19/1 x₂ = -19 + 7x₂ = -12

Product of the roots:

x₂*(-7) = c-12*(-7) = cc = 84

What value of y makes the equation 4x – 3y = 17 true, when x = 2?

Answers

Answer:

y = -3

Step-by-step explanation:

4x – 3y = 17

x = 2

4(2) - 3y = 17

8 - 3y = 17

-3y = 9

y = -3

Answer:

y= -3

Step-by-step explanation:

if x =2, substitute

4(2) - 3y = 17

8-3y = 17

(add 3y to both sides)

8= 17 + 3y

(subtract 17 from both sides)

8-17=3y

-9= 3y

(divide both sides by 3)

-9/3=y

y= -3

find the constant terms 5x^2+6x+c

Answers

Constant terms are just numbers (no x). The answer is 2

Elizabeth was practicing with her bow an arrow. She made 11 of the 12 shots right in the center. What percentage did make in the center? Round your answer to the nearest whole percentage.​

Answers

92%
Aka
11/12= 91.6 rounded is 92

Please help me!! I don’t get it

Answers

Answer:

x=3

Step-by-step explanation:

Solve for  x  by cross multiplying.

What is the MEDIAN of the data - (12, 8, 6, 12, 16, 12) *

Answers

Answer:

12

Step-by-step explanation:

Median basically means middle. So when you get a set of numbers, put them in order from least to greatest. This leaves us with ( 6  8  12 * 12  12  16 ). Now, we have to find the middle number (shown by *), but because this is an even amount of numbers (no defined middle), we take the two numbers in the middle, which would be the two 12's. If these were different numbers, we would add them together and then divide by two to get the median, but that's unnecessary here. Your median will be 12!

Answer:

When finding median, first arrange the values in ascending or descending order.

Suppose I take the ascending order:

[tex]6 \: \: 8 \: \: 12 \: \: 12 \: \: 12 \: \: 16 \\ median = ( \frac{n}{2} + 1) ^{th} value \\ n = number \: of \: terms = 6 \: digits \\ = ( \frac{6}{2} + 1) {}^{th} \: value \\ = 4 {}^{th} value \\ from \: the \: values 4 {}^{th} value = 12 \\ median = 12[/tex]

Determine area of polygon with side length of 10

Answers

Area: 1119.615

Formula: A = 3 x (2 + √3) x a²

Brooklyn has a points card for a movie theater. She receives 35 rewards points just for signing up. She earns 14.5 points for each visit to the movie theater. She needs at least 45 points for a free movie ticket. Which inequality can be used to determine x x, the minimum number of visits Brooklyn needs to earn her first free movie ticket?

Answers

Answer:

35+14.5x≥45

Step-by-step explanation:

35+14.5x≥45

What is the percentage of decrease from 2 to 1

Answers

I believe it would be -0.5, because you’re going down by half. If I’m incorrect, I’m sorry.

please help me !!!! trigonometric ratios !!!

Answers

Answer:

Step-by-step explanation:

If the questions  is    "What's x" then the answers is...

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

use CAH

Cos(x) = 46/60

x = arcCos(46/60)

x = 39.9445 °

Answer:

[tex]\displaystyle 40°[/tex]

Step-by-step explanation:

[tex]\displaystyle sec^{-1}\:1\frac{7}{23} = x; 39,94450519...° \\ \\ \boxed{40° \approx x}[/tex]

OR

[tex]\displaystyle cos^{-1}\:\frac{23}{30} = x; 39,94450519...° \\ \\ \boxed{40° \approx x}[/tex]

I am joyous to assist you at any time.

Plss help me out!!!!!!

Answers

Answer:

its D because they all match the sides

Line x and line z are straight lines.

Which pair of angles are vertical?

O Za and Zd

Zb and Zd

Za and ZD

O Zc and Ze

Mark this and return

Answers

Answer:

[tex]\angle c[/tex] and [tex]\angle e[/tex]

Step-by-step explanation:

Given

See attachment

Required

Identify the vertical angles

Keynotes

Vertical angles opposite one anotherVertical angles are equal to one another

Using the keynote as a reference, we have the following observation from the attachment:

[tex]\angle c[/tex] and [tex]\angle e[/tex] are opposite

[tex]\angle c[/tex] and [tex]\angle e[/tex] are congruent

Hence:

[tex]\angle c[/tex] and [tex]\angle e[/tex] are vertical

(d) is correct

help me out please :)

Answers

C. Lime segments that have the same length

Someone plz help me, I need help with this so bad.

Answers

Answer:

1. Corresponding Angles

2. Alternate Interior Angles

3. Alternate Exterior Angles

4. If <a=25 then <h will equal 25 because they are congruent

1-corresponding angles
2-alternative interior angles
3- same side exterior angles
4-155

*PLEASE HELP*
A magazine contains fourteen pages. You open to a random page.

Find the probability that the page number is 3 or 7.


Answers

“Or” meaning they want both. Since they each represent 1/14 add them together. 1/14+1/14=2/14. Then simplify 2/14 to get 1/7

So, the answer the 1/7

P=3/14 answer for a

P=7/14
=1/7
If asked just put as a fraction and the. Reduced.

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