Mathematics High School

Danielle and David will run in a marathon. Danielle's running pace is 7 miles per hour, and David's is 4 miles per hour. If they both start at the same point, how many
minutes should it take Danielle to be mile ahead of David?

Answers

Answer 1

Answer:

I believe it is 20 minutes.

Step-by-step explanation:

It takes 1 hour for Danielle to run 3 miles ahead of David.  You would have to divide 3 hours by 3 which is 1 mile. You have to do the same for the time it took to run 3 miles ahead (1 hour).  1 hour = 60 minutes and 60 divided by 3 is 20. This means it should take Danielle 20 minutes to be 1 mile ahead of David.

Hope this explanation helps!

Answer 2

Answer:

10 minutes

Step-by-step explanation:

I've had the same question, and although the other answer was correct, the question asked how long it would take to be 1/2 mile ahead, so I guess you'd do 20 divided by 2 in order to get the correct answer. Hopefully this helps you, if not, ignore me :)

Related Questions

Can two triangles shown be proven congruent ?if so by which theorem or poslulate ?

Answers

Answer:

theorem

Step-by-step explanation:

If 20 chickens laid 120
eggs. At this rate, how
many eggs would 30
chicken lay?

Answers

Answer:

180 eggs is the correct amount.

Please help and answer

Answers

Answer:

coefficient - 5

constant - 7

variable- y

Step-by-step explanation:

variables are letters

constants are added to variables and are only numbers

coefficients are numbers in front of variables.

Answer:

A. 5

B. 7

C. y

Step-by-step explanation:

hope this helps

PLease help! I'll mark you brainliest!

Answers

Answer:

b. [tex] {x}^{2} - 7x - 18[/tex]

Step-by-step explanation:

Area of shaded region

[tex] = (2x + 4)(x - 5) - (x + 2)(x - 1) \\ \\ = 2 {x}^{2} - 10x + 4x - 20 \\ - {x}^{2} + + x - 2x + 2 \\ \\ = {x}^{2} - 7x - 18[/tex]

what is 7/9 divided by 1/3? A.2 B.2 1/9 C.2 1/3. D.3​

Answers

Answer:

It would be 2 1/3!

Step-by-step explanation:

Question is in the image

Answers

Answer:

I think you are correct but I'm not sure

Step-by-step explanation:

A square has a perimeter of 52ft. What is the length of each side?

Answers

A square has all sides equal to each other and 4 sides. 52/4 is 13 so each side length measures 13

Write the equation of a line in slope-intercept form. (Brainliest)

Answers

the equation of the line is y=x-2
y = -2x + 1 pretty sure this is the answer lol

Anyone know this ill give brainliest pls help

Answers

answers are 7, 5, 3, 1

Answer:

The answer is 3

Step-by-step explanation:

18-15=3

15-12=3

12-9=3

7

5

3

1

1
Solve this quadratic using two different
methods. Show both methods.
x2 + 4x - 5 = 0

Answers

Answer:

x = -5 or x = 1

Step-by-step explanation:

[tex]x^{2} + 4x - 5 = 0\\(x+5)(x-1)=0\\[/tex]

7/9 - 5/6 - (-1/3) =

Answers

Answer: 0.278. I did the math. Can I has brainliest..?

someone pls help i will give brainliest.(it looks like there is a lot of questions but its only two questions 3 and 4.)

Answers

Answer: 3. 117 cm^2

4. 104 m^2

Step-by-step explanation:

See images attached

Answer the question. I need it fast. Thank you. This is for math

Answers

1. (-5, -7)
(-3, -3)
(0,3)
(1,5)
(-4,-5)

2. (-8,-6)
(0,-2)
(2, -1)
(8, 2)
(-0.5,3)

hope this helps just fill out the graph :)

Tell whether the function y = 5x − 2 is linear.

Answers

Answer:

Step-by-step explanation:

Yes, it is a linear equation

Answer:

Yes, it is Linear

Step-by-step explanation:

This is the answer because A linear equation is an equation of a straight line, which means that the degree of a linear equation must be 0 or 1 for each of its variables. In this case, the degree of variable y is 1 and the degree of variable x is 1.

Hope this helps!

John is stuck downtown Atlanta and has used is cell phone to order an Uber. The pick up fee is $20 with an additional charge of 0.25 cents per mile driven. Which equation below could be used to find out the total cost for a 30 mile trip? What is the total cost of the 30 mile trip?

Answers

Answer:

$25 + (0.25 * 30)

Step-by-step explanation:

Given that :

Cost of Uber :

Pick up fee = $25

Additional charge = 0.25 cent per mile driven

Cost of 30 mile trip :

Pickup fee + (additional charge * number of miles)

$25 + (0.25 * 30)

25 + 7.5

= $32.5

Please do it’s for algebra 1 it easy but I’m dumb

Answers

Answer:

One solution:  (1,1)

Step-by-step explanation:

Where the lines cross.

r - 5 = 4
I
Pls help I’m still in test

Answers

Answer:

R = 9

Step-by-step explanation:

or you can rewrite it like this: r = 4 + 5

Can someone please help me with this ill mark you as brainlist

Answers

Isosceles: side

Right: angle

obtuse: angle

scalene: side

acute: angle

equilateral: side

Hope this helps!

Ony scored 22 and 25 points in the first two games of a basketball tournament. Tony's goal is to make the All-Tournament Team. So far, in all of the tournaments he's been to, all of the players who made the All-Tournament Team scored an average between 27 and 32 points in the tournaments. Determine the range of points Tony should score in his next game to make the All-Tournament Team.

Answers

Answer:

34 and 49

Step-by-step explanation:

Calculation to Determine the range of points that should be score in his next game

Based on the information given we were told that he scored 22 and 25 points in the first two games which means that his current scores will be : 22 and 25 point

Secondly we were told that Tony All-Tournament Team as well scored an average between 27 and 32 points in the tournaments based on this we are going to calculate Tony's next score in the next game.

Hence,

Let x be Tony's next score in the next game.

Now let calculate the lower required score of 27 points

(x + 22 + 25)/(25-22) = 27

(x + 22 + 25)/3 = 27

(X+47)=3*27

Collect like terms

x = 81 - 47

x= 34

Let calculate the upper required score of 32 points

(x + 22 + 25)/(25-22) = 32

(x + 22 + 25)/3 = 32

(X+47)=3*32

Collect like terms

x = 96 - 47

x= 49

Therefore the range of points that should be score in his next game will be 34 and 49

Find the measure of each numbered angle

Answers

Answer:

m∠1 = 54° m∠2 = 63° m∠3 = 117°

Step-by-step explanation:

We know that 117 + m∠2 = 180°, which when calculated is equal to 63. Now, we know that 63 + 63 + m∠1 = 180°. This comes out to be 54°. Finally, we know that m∠3 has to equal 117° because they are same side interior angles.

The measure of m<1, m<2 and m<3 are 54, 63 and 63 degrees respectively

The sum of angle in a straight line is 180 degrees, hence:

m<2 + 117 = 180

m<2 = 180 - 117

m<2 = 63 degrees

For the diagram, m<2 - m<3 = 63 degrees (alternate angle.)

Also, the sum of interior angle of the triangle is 180 degrees, hence:

m<2 + m<2 + m<1 = 180

63 + 63 + m<1 = 180

126 + m<1 = 180

m<1 = 180 -126

m<1 = 54degrees

Hence the measure of m<1, m<2 and m<3 are 54, 63 and 63 degrees respectively

Learn more on angles here: https://brainly.com/question/25770607

The rate of change is

A. -4
B. -1
C. 1
D. 4

Answers

the rate of change is 4 so your answer would be D. 4

NEED HELP ASAP, WILL GIVE BRAINLIEST

SPORTS The probability that Kelly makes a free throw is 0.85. What is the approximate probability that she makes at least 8 of her next 10 attempts??

a.
61%

b.
68%

c.
72%

d.
82%

Answers

D.........................

Will mark as brainleist

Please help!

Answers

Answer:

y=10x-2

Step-by-step explanation:

-2 is the y-intercpt

Answer:

y=4/3x-2

Step-by-step explanation:

2) Anna bought 31 items at the grocery store. There was a glitch in the
computer system that caused the processing of the payment to take
longer than usual. If the total time for Anna's transaction took 2
minutes, how much time did the processing of the payment (p) take?
A)
60 seconds
B)
58 seconds
50 seconds
Eliminate
D) 45 seconds
See

Answers

A or b I think not sure

Answer:

B

Step-by-step explanation:

Solve for X and Solve for Y

Answers

Answer:

x is 56 and y is 65

Step-by-step explanation:

x=56
y=65

EXPLANATION:
Angles inside a triangle add up to 180 degrees, and the angle of a line is 180 degrees. Given we have the angle outside the triangle of 124, do 180-124 to get x, or 56. Now we add 56 and 59, subtract that from 180, and get our y value!

Can y’all help me please

Answers

Answer:

What is the question and possible answers

Step-by-step explanation:

Answer:

What you need help with

Step-by-step explanation:

Tell me in the comments below so i can answer like do you need help solving? help learning how to solve? Tell me.

someone help 6th grade math i will give brainliest

Answers

Answer:

262.5

Step-by-step explanation:

all you have to do is mutiply the decimal version of the percent so .35 by 750 which gives you the answer

hope this helps

Answer:

262.5

Step-by-step explanation:

I'm going to let you in on a secret about how to answer these very easy. if you use a calulator you can do 35 then press the % button then press times 750. if you cant use a calculator then you can convert your percantage to a decimal.really what you do for that is just but a decimal point in frond of your numbers in the percentage and then multiply. i know that they dont tell u that in sixth grade so im telling  you to make ur year much easier. good luck kid! :)

FREE BRAINLIEST TO EVERYONE TO ANSWERS RIGHT
Using the graph below, answer the following question.

Which of the following statements is false?

Group of answer choices

Luke can mow 5 lawns in 2.5 hours.

The graph shows a proportional relationship.

The constant of proportionalty is 2 lawns per hour.

The constant of proportionality is 1.5 lawns per hour.

Answers

Answer:

the constant of proportionality is 2 lawns per hour is the true one

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

The constant of proportionality is actually 2 lawns per hour, not 1.5

In the diagram below of triangle BCD, E is a midpoint of BC and F is a midpoint of CD. If EF = 44 - 8x, and BD = 44 - 5x, what is the measure of BD?​

Answers

Answer:

BD = 24

Step-by-step explanation:

EF = 44 - 8x,

BD = 44 - 5x.

Since EF is a midsegment of ∆BCD, therefore, based on the Midsegment Theorem,

[tex] EF = \frac{1}{2}(BD} [/tex]

[tex] 44 - 8x = \frac{1}{2}(44 - 5x} [/tex]

Multiply both sides by 2

[tex] 2(44 - 8x) = 44 - 5x [/tex]

[tex] 88 - 16x = 44 - 5x [/tex]

Collect like terms

[tex] 88 - 44 = 16x - 5x [/tex]

[tex] 44 = 11x [/tex]

Divide both sides by 11

[tex] 4 = x [/tex]

x = 4

BD = 44 - 5x

Plug in the value of x

BD = 44 - 5(4) = 44 - 20

BD = 24

Can anyone give me the answer for this one
a²(b²-c²)+b²(c²-a²)+c²(a²-b²) Simplify it

Answers

Answer:

After Multiplying them.

we get 0 as an answer.

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