It takes 3 hour 15 minutes to fly from city a to city b at constant speed. Find how long the journey takes if
A) the speed is 1×1÷2 times of the original speed and
B) if the speed is three-quarters of the original speed.

Answers

Answer 1

Answer:

a) t= 2hours and 10 minutes

b) t=4hours and 20 minutes

v1t1=v2t2

Answer 2

Answer:

Step-by-step explanation:

rate = distance / time     distance is constant (a-b) so call it D

time = distance / rate      rate = speed (ie miles per hour = mph)

time = distance / speed      

A)  if the new speed is 1.5 of the original speed    

     original time = 3.25 hours  or 195 minutes

  3.25  = D / 1       new time = D/1.5       find new time

         3.25 is to D   as    new time is to  D/1.5

            3.25/D = new time / D/1.5                   multiple D/1.5 on both sides

            (3.25/D) ( D/1.5)      = new time           the distance D cancels

            3.25 (D / D) / 1.5   = new time

            3.25 / 1.5  = 2.167 hours   or 2 hours and 10 minutes

B)   if the speed is 3/4 the original speed

original time = 3.25 hours  or 195 minutes

  3.25  = D / 1       new time = D/(3/4)       find new time

         3.25 is to D   as    new time is to  D/0.75

            3.25/D = new time / D/0.75                       multiple D/0.75 on both sides

            (3.25/D) ( D/0.75)      = new time

            3.25 (D / D) / 0.75     = new time

            3.25 / 0.75  = 4.333 hours   or 4 hours and 20 minutes


Related Questions

Convert. (13/5) into a mixed number.

Answers

Answer:

2 3/5 :)

Step-by-step explanation:

I can help with financial algebra if not just a freebie

Answers

Answer:

Well, okay then. I'll consult you if I ever need help. Thanks friend. xx

Please help me with this problem

Answers

Answer:

B

Step-by-step explanation:

Please try and answer my questions aswell :) have good day


The locations, given in polar coordinates, for two ships are (8 mi, 63°) and (8 mi, 123°). Find the distance between the two ships.

Answers

Answer:

It can therefore be noted that all angles are equal and thus the resulting triangle is actual an equilateral triangle and thus all the sides are equal. It can be concluded that the ships are 8 miles apart.

The sum of 2 numbers is equal to 63 and their difference is equal to 12. Find the numbers

Answers

Answer:

X=37.5

Y=25.5

Step-by-step explanation:

Assume first number is x and second is y, according to the question:

x+y=63

x-y=12

Adding two equation together:

2x=75

x=37.5

37.5-y=12

y=25.5

I really need help with this​

Answers

sorry to ruin ur chance of getting help bud but we can’t see the answer choices

Coach Elyson claims that 90% of her volleyball serves are good serves. The captain of the team thinks Coach Elyson has a lower rate of good serves. To test this, 50 of the coach’s serves are randomly selected and 41 of them are good. To determine if these data provide convincing evidence that the proportion of Coach Elyson’s serves that are good is less than 90%, 100 trials of a simulation are conducted. The team captain’s hypotheses are: H0: p = 90% and Ha: p < 90%, where p = the true proportion of Coach Elyson’s serves that are good. Based on the results of the simulation, what is an estimate of the P-value of the test?


A dotplot. A number line labeled simulated sample proportion of good serves goes from 80 to 98 percent. 80, 2; 84, 13; 86, 11; 88, 12; 90, 23; 92, 12; 94, 14; 96, 10; 98, 3.


0%

2%

4%

98%

Answers

Answer:

The correct answer is: 2%

Step-by-step explanation:

Took the quiz

Students in a school are asked to pick either football, rugby or tennis to play in their lesson.

The number of students who picked football and rugby are in the ratio of 5:4
The number of students who picked rugby and tennis are in the ratio of 12:25

125 students picked tennis.Work out how many students picked football.

Answers

Step-by-step explanation:

let x be rubgy liked let y football liked

x/125=12/25

ansx=60

again

y/60=5/4

ans y=75

football liked students are 75

Which of the following is not a possible value for a probability?

Answers

you didnt list the options

Answer:

the answer is 11/10, but be sure to list the answer choices next time, okay?

Step-by-step explanation:

a p e x :))

how do I answer this and can you explain it to me​

Answers

Answer:

5cm

Step-by-step explanation:

This is a trick question

5 t-shirt cost R120.how much will 9t-shirt cost​

Answers

Answer:

5 t-shirt = 120

1 t-shirt = 120/5= 24

9 t-shirts = 24*9= 216

rs 216

Evaluate 3.2x0.4/
0.016?​

Answers

The answer is down below this

At the time of shipping, Jacob can place 10 small boxes or 8 large boxes into a carton. A total of 96 boxes were sent in one shipment. The number of small boxes was less than large boxes. What is the total number of cartons he shipped?

Answers

Answer:

7 large boxes and 4 small boxes

Step-by-step explanation:

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What is the product of -3 and 5

Answers

Answer:

-15

Step-by-step explanation:

have a good day/night

may i please have a branliest

If you can buy 6 soccer game tickets for $45.00, how much would it cost you to buy 9
soccer game tickets?

Answers

Answer:

$67.50

Step by Step:

$45.00 divided by 6 = $7.50

$7.50 x 9 = $67.50

All of the following numbers are rational except _____.

Answers

Answer:

D 1.44

Step-by-step explanation:

the answer is the last one 1.44

Answer:

√17

Step-by-step explanation:

√121 = 11

√25 = 5

√1.44 = 1.2

√17 is an irrational number/

The sum of Theorem states that the sum of all angles in a triangle is_____.

Answers

Answer:

180°

I hope it's helps you

convert 30 minutes into seconds​

Answers

Answer:

1800 seconds.

Step-by-step explanation:

30 × 60 = 1800

Hopes this helps:

Answer: 1800 seconds

Just multiple the time value by 60.

help me asap .. please:C :C

Answers

Answer:

6ft²

Step-by-step explanation:

A= LxW

A= 3x2= 6

A= 6ft²

Answer:

6ft

Step-by-step explanation:

Area of Missing Rectangle:

height*base

==> 2*3

==> 6 ft^2

help screenshot below

Answers

Answer:

Scalene right

Step-by-step explanation:

So there's a right angle in the corner over there, so we know it's going to be ___ right triangle. And none of the sides are the same length, so its scalene

hope this helps:)

The group of decimals in ascending order is:
A 261,2; 261,3; 261,342; 261,4
B. 261,2; 261,3; 261,4; 261,342
С 261,342; 261,4; 261,3; 261,2
D 261,4; 261,342; 261,3; 261,2
E 261,03; 261, 30; 261,33; 261,003​

Answers

Answer:

A

Step-by-step explanation:

it's just going from least to greatest

-12=-8z+12 please need help​

Answers

Answer:

z=3

Step-by-step explanation:

-12=-8z+12

-12-12=-8z

-24=-8z

-24/-8=z

z=24/8

3=z

z=3

Answer and Step-by-step explanation:

To solve for z, we have to get everything away from z.

First, subtract 12 from both sides of the equation.

-24 = 8z

Now, divide each side by 8.

-3 = z

z is equal to -3 (negative three).

#teamtrees #PAW (Plant And Water)

how to write an equivalent fraction for 3/5 with a denominator of 10 ​

Answers

Answer:

Equivalent fractions of 3/5 are:

(3 × 2)/(5× 2) = 6/10,

[tex]\huge\textsf{Hey there!}[/tex]


[tex]\mathsf{\dfrac{3}{5}}\\\\\mathsf{= \dfrac{3\times\bf 2}{5\times \bf 2}}\\\\\mathsf{= \dfrac{\bf 6}{10}}\\\\\mathsf{= \dfrac{6\leftarrow numerator}{10 \leftarrow denominator}}\\\\\huge\textsf{Thus, your numerator is \boxed{\mathsf{6}}, whereas the}\\\huge\textsf{denominator is \boxed{\mathsf{10}}}\huge\checkmark[/tex]


[tex]\huge\textsf{Good luck on your assignment \& enjoy your day!}[/tex]


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Find the length of the rectangle.

7 mi

Area = 56 sq mi

1

A. 21 mi

B. 8 mi

C. 30 mi

D. 4 mi

Answers

Área # 56 sq mi
1
A) 21 mi
the answer is 21 mi which is A

Verify that your point from Question 2 is a solution to 2x-y=-12x−y=−1 AND is also a solution to y=5x-5y=5x−5. What does it mean if your point is a solution to both?

(The point is (2,5))

Answers

Answer:

(a) Verified

(b) They are simultaneous equations

Step-by-step explanation:

Given

[tex]2x - y = -1[/tex]

[tex]y =5x - 5[/tex]

Required

Verify that: [tex](x,y) = (2,5)[/tex] is a solution

We have:

[tex]2x - y = -1[/tex]

Substitute: [tex](x,y) = (2,5)[/tex]

[tex]2 * 2 - 5 = -1[/tex]

Evaluate all products

[tex]4 - 5 = -1[/tex]

Subtract:

[tex]-1 = -1[/tex]

Because both sides of the equation are equal, then the point is a solution

Also: [tex]y =5x - 5[/tex]

Substitute: [tex](x,y) = (2,5)[/tex]

[tex]5 = 5 * 2 - 5[/tex]

Evaluate all products

[tex]5 = 10 - 5[/tex]

Subtract:

[tex]5 = 5[/tex]

Because both sides of the equation are equal, then the point is a solution

Because the given point is a solution to both equations, then they are simultaneous equation

What is the answer please help no links I will report

Answers

Answer:

links.

Step-by-step explanation:

Answer:

the answer is essentially A

please help me solve this

Answers

9514 1404 393

Answer:

  sin(θ) ≈ -0.92

  cos(θ) ≈ 0.38

  tan(θ) = -2.40

Step-by-step explanation:

Let r represent the distance of the point from the origin. The Pythagorean theorem tells us ...

  r² = (5)² + (-12)²

  r² = 169

  r = √169 = 13

The trig relations for a point on the terminal ray are ...

  (x, y) = (r·cos(θ), r·sin(θ))

Then ...

  sin(θ) = y/r = -12/13 ≈ -0.92

  cos(θ) = x/r = 5/13 ≈ 0.38

  tan(θ) = y/x = -12/5 = -2.40

Solve for m: K = 3a + 6m

Answers

Answer:

m = [tex]\frac{K-3a}{6}[/tex]

Step-by-step explanation:

subtract 3a first

then divide by 6

middle school math problem.....

Answers

Answer:

hi bro how are yuo join this meeting i will say you ans

Step-by-step explanation:

Answer:

Part A: 27.32

Part B: 4.92

Step-by-step explanation:

25.30*.08(or 8%) is equal to 2.024

25.30+2.024=27.324=27.32

32.24-27.32=4.92

Solve for
3+4 |x/2 + 3| = -11

Answers

9514 1404 393

Answer:

  no solution

Step-by-step explanation:

The absolute value cannot be negative. Here, the absolute value expression must be -3.5 in order to satisfy the equation. It cannot have that value.

  there is no solution

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