Marcelo jogs at a speed of 7 miles per hour when there are no hills. He plans to jog up a mountain road which will cause his speed to decrease by r miles per hour. Which of the following expressions represents the time, t, in hours it will take him to jog 13 miles up the mountain road?
a. t=13/7r
b. t=7+r/13
c.t=13-r/7
d. t=13/7+r

Answers

Answer 1

Answer:

2.3 hours rounded I suppose.

Step-by-step explanation:

You have jogged 5 miles from the park at a rate of r miles per hour. On your way back to the park your average speed increases by 1 mile per hour.

a. Write an expression for the time t (in hours) it takes to jog 5 miles

from the park as a function of your average speed r (in miles per hour) ___________

b. When you run back to the park, your average speed increases by 1 mph.

Write an expression representing your new speed. ___________

c. Write an expression for the time t(in hours) it takes to jog 5 miles

back to the park. ___________

d. Use your answers to parts a and c to write an expression that gives the total jogging time T (in hours) as a function of your average speed r (in miles per hour) when you are jogging away from the park. Write your answer as a single rational expression.

e. Find the total jogging time if you jogged away from the park at an average speed (r) of 4 miles per hour. Round your answer to the nearest tenth.

hours or 135 minutes

2.3 hours rounded I suppose.


Related Questions

can some help please lolz

Answers

Answer:

I believe the measurement of angle 5, would be 114.

Step-by-step explanation:

We can solve this by using alternate interior angles. First we must find the other alternate interior angle for angle 5. To do this we take 66 and subtract it from 180. We now find that the angle adjacent to the angle measuring 66 degrees is equal to 114 degrees.  Now, the angle we just found the measurements for, is the alternate interior angle for angle 5. Therefore, since they are alternate interior angles, angle 5 is equal to 114 degrees.

I hope this helps!

2 ways that you can write 2%?

Answers

Answer:

2/100 and .02

Step-by-step explanation:

Answer:

0.02 and 2/100

Step-by-step explanation:

These two are some of the more simple ways to write 2%

you are buying decorations for a birthday party. the before tax total for 3 rolls of crepe paper and 20 balloons is $11.40. after you start decorating, you need more supplies. you buy 2 more rolls of crepe paper and 10 more balloons for $7.20 before tax. how much did each cost?

please help with an explanation.

Answers

Answer & Step-by-step explanation:

Let's have

C = Creepers

B = Balloons

1) 6C + 20B = 11.9  

2) 2C + 15B = 6.05

Eliminate

16C + 20B = 11.9 x3  

-2C + 15B = 6.05 x4

18C + 60B = 35.7  

-8C + 60B = 24.2

10C/10 = 11.5/10  

C = 1.15

HELP PLEASE THIS IS HARD!!!

Solve and check
6x - 5x + 7x = 34

Answers

Answer:

Step-by-step explanation:

6x-5x+7x=34

x+7x=34

8x=34

x=[tex]\frac{34}{8}[/tex]

Answer:

X= 5 2/3

Step-by-step explanation:

Combine Like terms

6x=34

Inverse Operation

x=35/6

Simplify

X=5 2/3

Five chicken nuggets have 135 calories. How many calories are in 9 chicken nuggets

Answers

Answer:

243 calories

Step-by-step explanation:

Help Please Slope!!!!

Answers

Answer: 1/2

Step-by-step explanation:

Answer:

The slope is -[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

The rate of change (the slope) is up one and left two, which would be [tex]\frac{1}{-2}[/tex] or just -[tex]\frac{1}{2}[/tex].

I would appreciate brainliest but if not that's ok!

Someone plz help me with both I will give brainliest

Answers

3- 4 x 1 / 5 x 8 = 4/ 5 x 8 = 4/ 40

5- 3 x 3/ 5 x 7 = 9/ 5 x 7 = 9/35

Answer

3.- *in order* 4,8,   4 aka- 4/40- 1/10

                               40

5.- *in order* 3/5 x 3/7 = 9/35

Step-by-step explanation:

you have to simplify 4/40 wich is 1/10 and the rest s self explanitory. hope this helped!!

Determine how (if possible) the triangle can be proven similar:

Answers

Answer:

Not similar

Step-by-step explanation:

 You can only find the vertical angles at the intersection.

So, you know they share one angle.

That is not enough information to prove similarity.

Therefore, I'd say they're not similar.

A woodworker wants to cut a board that is 8.225 feet long into 5 equal-length pieces.How long will each of the cut boards be?



A. 0.1645
B. 1.645
C. 4.1125
D. 41.125

Answers

The answer would be B. 1.645 because 8.225/5=1.645

Hope this helps

Have a great day/night

Feel free to ask any questions

3. Triangle ABC has angle measures as noted below. Please note this triangle is not drawn to scale, and the longest leg of the figure may not be the longest leg of the actual triangle.
You will need to use the expressions for the angles given below.
A) 2(x + 15) B) 3x+10 C) 5x
(a) Identify the angle relationship and setup your equation with the given expressions.
(b) What is the value of x? Show your work.
(c) What is the measure of angle A, B, & C? Show your work and make sure to identify which is which.

Answers

Answer:

I only know B and C

Step-by-step explanation:

Part B)

2 (x+15) + 3x + 10+ 5x = 180        2x + 30 + 3x + 10 +5x = 180           10 +40 = 180

- 40 -40            10x divided by 10 = 140 divided by 10             x= 14

Part C)

A = 2 (x + 15) = 2 (14 + 15) = 2 * 29 = 58 degrees

< B = 3 x + 10 = 3 * 14 + 10 = 52 degrees

< C = 5 x = 5 * 14 = 70 degrees

6 is what percent of 9?

Answers

Answer:

33 1/3 %

Step-by-step explanation:

6/9 = 1/3 = 33 1/3 %

Hope that helps!

The 6 is approximately 66.67% of 9.

To calculate what percent 6 is of 9, we can use the following formula:

Percent = (Part / Whole) * 100

In this case, 6 is the part and 9 is the whole. Substituting these values into the formula:

Percent = (6 / 9) * 100

To simplify, we divide 6 by 9:

Percent = (2 / 3) * 100

Multiplying 2/3 by 100:

Percent = (2 * 100) / 3

Percent = 200 / 3

To express the result as a decimal:

Percent ≈ 66.67

Therefore, 6 is approximately 66.67% of 9.

To know more about Percent:

https://brainly.com/question/31323953


#SPJ6

Find the measure of the missing angles. Need help ASAP

Answers

Answer:

I don't see the photo. Can't help OOF

Step-by-step explanation:

Help!! Will give brainliest

Answers

Answer:

c

Step-by-step explanation:

c

................................................................

(10³⁰ × 10⁴⁵ ) - (10⁹⁰ ÷ 10¹⁵)

Answers

The answer to your problem is 0

Answer:

0

Step-by-step explanation:

Multiply. Write your answer in simplest form.
[tex] \frac{1}{8} \times \frac{1}{2} [/tex]
[tex] \frac{2}{3} \times \frac{4}{5} [/tex]
[tex] \frac{3}{10} \times \frac{5}{6} [/tex]

Answers

1.
1/16 or .0625

2.
8/15 or .53

3.
1/4 or .25


Hope it helps :)

Answer:

1.

1/16 or .0625

2.

8/15 or .53

3.

1/4 or .25

Step-by-step explanation:

hope it helps bro

Jill flipped a coin 40 times. The coin landed as heads 28 times and tails 12 times. Based on her results, which of the following is true?
A. If she flips the coin 20 more times, it will land as heads 14 times.
B. The next time she flips the coin it will land as heads.
C. The theoretical probability of a coin landing as heads is greater than her results.
D.The experimental probability of the coin landing as heads was 7 to 10.​

Answers

Answer:

There are many conclusions we can come to for this!

70% of the flips were heads, and 30% are tails

28/40 was heads, and 12/40 were tails

There were more heads than tails

There were 14 more heads than tails

:)

Step-by-step explanation:

The radius of the circle on a basketball court is 6 feet. What are the approximate circumstance and area of the circle?

Answers

Answer:

C= 38 in Approx

A=113 in^2 Aprprox

Step-by-step explanation:

Given data

radius= 6 ft

Circumference, C=2πr

substitute

C=2*3.142*6

C=37.704 in

Area A= πr^2

substitute

A=3.142*6^2

A=3.142*36

A=113.112 in^2

how many 5/8 foot peices of wood can you cut from a board that is 4 5/8 feet long

Answers

Answer:

7

Step-by-step explanation:

5/8 x 7= 4 3/8

That's the closest you are going to get without going over.

1/3y y = 15
please help

Answers

Answer:

Step-by-step explanation:

y in (-oo:+oo)

(1/3)*y = 15 // - 15

(1/3)*y-15 = 0

1/3*y-15 = 0 // + 15

1/3*y = 15 // : 1/3

y = 15/1/3

y = 45

y = 45

Answer: The answer is five

Step-by-step explanation: This is because if the equasion is 1/3 x y and y=15 than the equasion is 1/3 x 15 or 1/3 x 15/1 which is 5

Write the coordinates of the vertices after a rotation 270° counterclockwise around the origin.
y
x
-10
10
-10
10
0
K
L
M


K(0, 5)

K′(
,
)
L(7, 5)

L′(
,
)
M(1, 7)

M′(
,
)

Answers

Answer:

YOUR ANSWER IS 45675675

Step-by-step explanation:

Need the answer for this

Answers

Answer:

2

Step-by-step explanation:

Seth is a gold miner. The function P = 45g + 15 represents the amount of money he gets for each gram, g, of gold. If he finds a nugget, the value of the nugget is 1.5 times the value of the weight of gold. The function B = 1.5P represents the amount of money for a gold nugget. Which function represents the amount of money for a gold nugget weighing g grams?

Answers

Answer: 67.5G + 22.5

Step-by-step explanation:

Help Please!! On the 1st and 2nd one. just the decent and independent variable and the equation please!

Answers

hi, did you attach the picture for it?


m : _____
b : _____
Equation : ______

PLEASE HELP ME !!!

Answers

Answer:are you saying mx+b

Step-by-step explanation: hopefully that helps you mark me brainlest please

and like

The ratio of the three angles of a triangle is 2:3:5. What are the three angles of the triangle?​

Answers

FIRST STEP:

2x + 3x + 5x = 180

10x = 180

x = 18

SECOND STEP:

2*18 = 36

3*18 = 54

5*18 = 90

36:54:90

PLZ MARK AS BRAINLIEST

Answer:

let ratio be 2x,3xand 5x

Step-by-step explanation:

2x+3x+5x=180(sum of interior angle of triangle)

10x=180

x=180/10=18

:.required angle

2x=2×18=36

3x=3×18=54

5x=5×18=90

Chris bought 2 chicken sandwiches and 3 bowls of vegetable soup for $16.50. Jim bought 1 chicken sandwich and 2 bowls of vegetable soup for $9.50. What was the cost of a bowl of soup? A) $4.50 B) $2.50 C) $5.50 D) $3.25​

Answers

Answer:

Step-by-step explanation:

This is a system of equations, best solved by using the elimination method. But first we have to come up with our 2 equations that represent the system. Let's call the chicken sandwiches "c" and the bowls of soup "b".

If Chris bought 2 chicken sandwiches and 3 bowls of soup for $16.50, his equation is:

2c + 3b = 16.50

If Jim bought 1 sandwich and 2 bowls of soup for $9.50, then his equation is:

1c + 2b = 9.50

We put these together, one above the other, lining up the variables:

2c + 3b = 16.50

1c + 2b =   9.50

If we multiply the second equation by -2 we can eliminate the c variable. Multiplying the second equation by -2 changes only that equation, making the "new" system:

2c + 3b = 16.50

-2c - 4b = -19.00

When we add straight down each column, the c's cancel each other out (they subtract away) and in the b column we have -1b, and in the answer column, we have -2.50.

That equation is -b = -2.50 or b = 2.50

A bowl of soup costs $2.50, choice B

A shelf has four books on it. The weight, in pounds, of each of the four books on the shelf is listed below.

2.5, 3.2, 2.7, 2.3

Which inequality represent the weight, w, of any book chosen from the shelf?
A ) w > 2.3
B ) w < 2.4
C ) w > 3.2
D ) w < 3.3

Answers

Answer:

C ) w > 3.2

C ) w > 3.2

Step-by-step explanation:

Because 3.2 times 4 is 12.8.

3.2

+3.2

6.4

+3.2

9.6

+3.2

12.8

HELP I NEED HELP ASAP

Answers

15 hope this helps you

Find the measure of the missing angles.
50

Answers

Answer:

B 50 C 130

Step-by-step explanation:

Please help it emergency I will mark you as brainlist please help

Answers

Answer:

I cant tell if you need help with the problem, or if this is a life or death emergency.

Answer:

The area of the polynomial is 35 square unit.

Step-by-step explanation:

It is given that area of the polygon WXYZ with its vertices at W(–3, –2), X(–3, 5), Y(2, 5), and Z(2, –2)

From the below graph it is noticed that the given polynomial is a rectangle with length 5 and width 7

The distance formula

Using the above formula we get,

The length of opposing sides are equal

Using the Pythagoras theorem, the length of diagonal WY and XZ are

Since the length of the diagonal are same, therefore the given polygon is a rectangle.

The area of a rectangle is

Where l is length and w is width.

The area of given polynomial is

Therefore the area of the polynomial is 35 square unit.

Other Questions
What is an effect of government instability in Africa? Name four methods of attacking a castle and describe how they worked What was the first European colony called in West Africa that was established by Portuguese in 1482? A: silver haired trade colonyB: Gold Coast C: leopard skin coast D: Slave coast -2x+4y=40 find the y intercept and find the x intercept DNA code is TAC ACA CGA GGA GGG TCT AAA ATT what is the sequence of amino acids?bio what is 5.5% of $24.9 Question 7Determine whether the following sentences are written in active orpassive voice.The beaker was filled with a saline solution.AnswerAActiveBPassive Complete the dialogue with the correct form of the verb estar in the present tense.1.Dnde ests? ____en el laboratorio.2.Dnde estn ustedes?Nosotros ____ en la biblioteca.3.Vosotros _____ en la clase de fsica hasta las dos, verdad?No, estamos all hasta las dos y media. A male polar bear is 2 7/9 meters long. A female polar bear is 1 5/6 long. Sidney thinks the male polar bear is 1 2/3 meters longer than the female polar bear. She is incorrect. How did she get that answer? Mike is doing a project for science class. He is making an analogy of a cell and relating it to the structure and function of a city. He is looking for a building to represent the mitochondria. Which building in a city has a similar function and would best represent the role of the mitochondria in the cell?Group of answer choicesthe water towerthe power plantthe police stationthe library How does the mood or feelings change throughout the poem in Call Me Maria Please help me lm begging you please A mutation in which cell would only affect the organism and not future generations A. Sperm cell and lung cellB. Sperm cell and egg cellC. Nerve cell and brain cellD. Egg cell and liver cell Two people are pushing on a shopping cart from opposite sides. When will the motion ofthe shopping cart change?A. When the two forces are equalB. When the forces acting on it are unbalancedC. When both people stop applying a forceD. When the two people push with the same force Although I am a new student at this high school, I can seealready how the current organization of the studentgovernment excludes many of us. I have not yet been atthe school long enough to establish popularity, but I havesome good ideas and the right to share them with my newschool. Many other students also have the capacity forleadership and deserve a chance to participate. If you votefor me, you will see that even we new students havesomething to offer.Which statement best explains why the final sentence is effective?A. It asks the audience to play a role in solving a problem.B. It makes a moral claim regarding the issue.C. It draws connections between the speaker and other students.D. It identifies a problem to be solved.< PREVIOUS Assault and battery is a tort not a crime when the action involves people who know each other Evaluate 4 ^ x for (a) x = - 2 and (b) x = 3 . Write your answers in simplest form What is the Quran? Also, what guidelines does it provide? 1/2x -5-1/3y when x =48 and y=15 What do strict parents teach kids?