A car travels at an average speed of 45 mph for 40 minutes.
The next part of the car's journey takes 25 minutes at an average speed of 60 mph.
Show that the average speed of the entire journey is just over 50 mph.

Answers

Answer 1

9514 1404 393

Answer:

  the average speed is 50 10/13 mph

Step-by-step explanation:

The relationship between time, speed, and distance is ...

  distance = speed × time

The distance traveled in the first part of the car's journey is ...

  (45 mi/h)(2/3 h) = 30 mi

The distance traveled in the second part of the car's journey is ...

  (60 mi/h)(25/60 h) = 25 mi

Then the total distance is 30 mi +25 mi = 55 mi.

The total time is ...

  40 min +25 min = 65 min = 65/60 h = 13/12 h

The average speed for the trip is ...

  speed = distance/time = (55 mi)/(13/12 h) = 660/13 mi/h = 50 10/13 mi/h

The average speed of the journey is 50 10/13 mi/h, just over 50 mi/h.


Related Questions

13. What is the perimeter of the triangle below?
X+14 X+14 2x+36

Answers

Answer:

4x + 64

Step-by-step explanation:

(X + 14) + (X + 14) + (2x + 36) = 4x + 64

Find the quotient: 30m12n3÷−63m4n4.

Answers

Answer:

Hi! The answer to your question is -[tex]\frac{10m^8}{21n}[/tex]+[tex]0m^{7}[/tex]

Step-by-step explanation:

↗✧*☆*: .。..。.:*☆♪↗✧*☆*: .。..。.:*☆♪

☆Brainliest is greatly appreciated!☆

Hope this helps!!

Stay Safe!!!

- Brooklynn Deka

I WILL GIVE YOU BRAINERLEST AND A LIKE



Olivia's father is going to build a new
deck in the backyard. He draws this
design for the deck.
What is the area of the deck

Answers

Answer:

A=15

Step-by-step explanation:

Please help please help please and will mark branliest

Answers

Answer:

m=w+6

Step-by-step explanation:

Use 2 points to find the slope, which is 1.

The y intercept is 6

13 is what fraction of 4? Use the tape diagram to support your answer.

Answers

Answer:

3 1/4

Step-by-step explanation:

13/4 = 3 1/3

Help pls help I need help

Answers

Answer:

bro no one can see that

Step-by-step explanation:

Answer:

8ounces

Step-by-step explanation:

pounds* 16= ounces

therefore 1/2pounds *16=8ounces

please help ///// brainiliest

A 6 cm high cone has a volume of 128π cm3 What is its exact surface area?

A. 160π cm2
B. 96π cm2
C. 144π cm2
D. 104π cm2


No dam links

Answers

I think it would be D. 104

Find missing angle measure M

Answers

Answer:

m<Q = 30 degrees

Step-by-step explanation:

Add 126 and 24 which equals 150

Subtract 180 from 150

You get 30

Please please i need help i will mark u brill

Answers

Answer:

Step-by-step explanation:

8d + 54 = 150

Putting value of D = 12 in the equation

8(12) + 54 = 150

96 + 54 = 150

150 = 150

Bringing like terms on one side

150 - 150 = 0

Answer:

Correct.

Step-by-step explanation:

8d+54=150

Putting d=12 we get

8(12)+54=150

96+54=150

150=150

at a football game, every person is either a fan of the home team or of the visiting team. omar observes that the ratio of fans of the home team to fans of the visiting team is 7:2. omar states that the total number of fans at the game must be an odd number because 7 + 2 = 9 and 9 is an odd number.

Determine a number of fans of the home team and a number of fans of the visiting team that show omar statement is false.

the first question is, enter a number of fans of the home team that would show Omar's statement is false.

the second question, enter a number of fans of the visiting team that would show omar statement is false.



pls I need help!!!!!!​

Answers

14 fans for the home team and 4 for the away will still hold the ratio and prove Omar’s statement false.

David equally shares 8 bales of hay among 15 cows.
What fraction of a bale will each cow get?

Answers

Answer:

8/15

Step-by-step explanation:

you divide 8 by 15 to get the fraction

ANSWER THE QUESTION FOR BRAINLIEST

Answers

The answer is A.
y = -5x results in a straight line

BRAINLIEST HELP ASAP!!!

Answers

2 triangles with a base of 8 and height of 6 divide the base and height in half to get the Base and height of 1 triangle and then use 1/2 B•H to find the area of one triangle 1/2 (4•3) = 6

Pls help ill give brainliest

Answers

it is located in quadrant 2, as it is originally in the third quadrant and is flipped over the x axis.

Solve for x

|x-7|=x-7

Answers

X= 7
Hope this helps :)
The answer is x = 7

Step by step

The average prices of a gallon of fuel are shown in the table. Let p=f(t) be the average price of fuel at t years since 1980. The model f(t)=0.0075t2−0.2t+2.32 fits the data well.
Year
Price​ (dollars per​ gallon)

1980
2.38
1985
1.57
1990
1.18
1995
0.95
2001
1.33
2005
1.95
2006
2.35
a. Find the​ p-intercept of the model.
The​ p-intercept is nothing.
​(Type an ordered pair. Type an integer or decimal rounded to two decimal places as​ needed.)

Answers

i think it’s 1.57 mane guy bro broski lol

Look at the system of equations below.
y = {x + 10
y = {x – 10
Which of these statements is correct?
A. The system has no solution.
B. The solution of the system is (-3,8).
C. The solution of the system is (6,-6).
D. The system has an infinite number of
tiang

Answers

Answer:

Step-by-step explanation:

A

The relationship between a relationship between his life is a stronger understanding and relationship with the revolution and his relationship between his relationship with the union of his life relationship and his life and his father relationship is a stronger understanding and understanding that his life relationship with the union and relationship is stronger understanding of understanding

AB = [ 4 ]. Find A if B=(22]​

Answers

Answer:

A = 2/11

Step-by-step explanation:

22A= 4

(22A)/22 = 4/22

A = 4/22 = 2/11

giving brainliest!! *easy*

Answers

Answer:

615.44

Step-by-step explanation:

Solve for n.
n+ 1 = 4(n-8)
O n = 1
On = 8
On = 11
O n = 16
Save and Exit
Next
Sub
Mark this and return

Answers

n=11
hope this helps!!!

-5x - 3y + z=-4
-2x - 2y + 2z = 4
Z=x+5

Answers

Answer:{x,y,z} = {85/24,-1/6,25/24}

Step-by-step explanation:

giving brainliest!! *easy*

Answers

Answer:

370 square millimeters

Step-by-step explanation:

2x9x5=90

2x10x5=100

2x10x9=180

90+100+180=370 square millimeters

Answer

450mm^3

Step-by-step explanation:

the picture has the workings

A=l×w×h

A=10mm×9mm×5mm

A=450mm^3

Question 1 of 10
Which term describes the red curve in the figure below?
O A. Hyperbola
B. Ellipse
C. Circle
O D. Parabola

Answers

Hyperbola is the answer

The red curve in the figure below is a hyperbola.

What is a hyperbola?

A hyperbola is an open curve with two branches, the intersection of a plane with both halves of a double cone.

If a double-napped cone is sliced by a plane that intersects both naps of the cone, a hyperbola is formed.

The red curve in the figure below is a hyperbola.

Find out more on hyperbola at: https://brainly.com/question/2351925

Solve the following triangle using either the law of sines or the law of cosines b=6 , c=12, A=48°

Answers

9514 1404 393

Answer:

  (a, B, C) ≈ (9.15, 29.2°, 102.8°)

Step-by-step explanation:

The given angle lies between the given sides, so the law of sines cannot be used. The third side is ...

  a² = b² +c² -2bc·cos(A) ≈ 83.6452

  a ≈ √83.6452 ≈ 9.146

__

Then angle B is found from the law of sines. We want to find the smaller angle, so we can tell if the triangle is acute or obtuse.

  sin(B)/b = sin(A)/a

  B = arcsin(b/a·sin(A)) ≈ arcsin(0.48753)

  B ≈ 29.2°

  C = 180° -48° -29.2° = 102.8°

The solution to the triangle is (a, B, C) = (9.1, 29.2°, 102.8°).

Sally weights 15 7/10 pounds cocoa weights 13 3/5 pounds how much more does sally weigh than cocoa

A.1/10
B.4/5
C. 2 1/10
D. 2 4/5

Answers

Answer:

C. 2 1/10

Step-by-step explanation:

15 7/10-13 3/5= 15 7/10 - 13 6/10=

2 1/10

I think the answer is C

I see 2 people sitting on the bench at the playground. One was Deaf and one was blind.
A name was called, and one left. Who was that?

Answers

Answer:

the blind one

Step-by-step explanation:

plz fast solve it and It should be right ​

Answers

9514 1404 393

Answer:

  (i) ∠CDF = 86°

  (ii) ∠BAD = 141°

Step-by-step explanation:

(i) Angles CDF and GFD are "alternate interior" angles, so are congruent.

  ∠CDF = 86°

__

(ii) Angles BAD and CDA are "alternate interior angles, so are congruent. Angle CDA is the sum of angles CDH and HDA. Angle CDH is supplementary to angle CDF, so is ...

  ∠CDH = 180° -∠CDF = 180° -86° = 94°

Then ...

  ∠CDA = ∠CDH +∠HDA = 94° +47°

  ∠CDA = 141°

(Will dive brainly!! please!!)

The Steven's family owns a house worth $280,000, of which they still owe $113,545 on the mortgage. They also own two cars, one worth $5,200 and the other worth $15,600. They still owe $9,200 on one of the car loans. They have $2,300 in credit card debt and owe $18,200 for their daughter's wedding. What is their net worth?


A) $157,555
B) $162,155
C) $300,800
D) $143,245

Answers

9514 1404 393

Answer:

  A) $157,555

Step-by-step explanation:

The sum of assets is ...

  house + 2 cars = $280,000 +5,200 +15,600 = $300,800

The sum of liabilities is ...

  mortgage +car loan +credit card +wedding

  = $113,545 +9,200 +2,300 +18,200 = $143,245

The family's net worth is the difference between assets and liabilities:

  $300,800 -143,245 = $157,555

What is the measure of each exterior angle of a regular 15-sided figure?

Answers

Hope this helps
This is the formula to find the interior angle

HELPPPPP its geometry and i have no clue how to do it

Answers

Answer:

OKay I am decent at geomentry and am in 7th grade but i can't help u if i have no clue whats ur problem? btw i suck at math in general but geomentry i can help with

Step-by-step explanation:

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