A boat traveled 150 miles downstream (with the current) and back (against the current). The trip downstream took 10 hours. The trip back took 30 hours. What is the speed of the boat (b) in still water? What is the speed of the current (c)?

Answers

Answer 1

Answer:

b= 10 miles/hr and c= 5 miles/hr

Step-by-step explanation:

Let it's downstream and upstream speed be d and u respectively

also speed of the boat be b and speed of stream be c.

as per question d = 150/10= 15 miles/hr

and, u= 150/30= 5 miles/hr

also we know d= b+c = 15.....i and u = b-c= 5....ii

solving i and ii we get b= 10 miles/hr and c= 5 miles/hr


Related Questions

12x^3y^2/3y
Pleaseee helppp

Answers

Answer:

4x^3^y2/y hope this helps

Step-by-step explanation:

Answer:

I'm not sure but it might be 4x³y

I might've misunderstood cause it's kinda hard to read.

90 POINTS AND A BRAINLIEST!!!!!!



A certain rectangular prism has a height of 6 m, a length of 5 m, and a width of 4 m. Give the dimensions of a SECOND rectangular prism that will have the same surface area of the first one.




Pls dont look up the question and copy and paste the same answer either
if you do i will report you
if anyone is wondering why im so "pressed' I've had LOTS of issues with arrogant people
Thanks!


PLS DON'T ASK FOR BRAINILEST UNLESS YOU TAKE YOUR TIME AND ACTUALLY DO THE QUESTION PLEASE :((((

Answers

Answer:

The surface area is 148

Step-by-step explanation:

Soooo i had to look up how to do it cause i completely forgot how. But once i did, i worked it out.

The formula i got was: A= 2(wl+hl+hw)

W= width                 h= height           l= length

From there i just replaced the corresponding numbers for the letters that represent them. (think of that as like you see someone that you think represents you and you try to replace them, with you. Same here just w/ numbers and letters)

A= 2 [ (4x5) + (6x5) + (6x4) ]

from here you do order of operations starting with what's inside the parentheses. Then you work your way out.

A= 2 [20+ 30+ 24]

A= 2 [74]

Anytime a number is next to parentheses or brackets (which are these: [ ] ) you multiply what is outside them by what's inside them. (for this think about kids. When you seperate them, they try to make more noise. When you seperate numbers, they multiply)

Final answer is

A= 148

if this is wrong i am so, so, so sorry. I hope this helps, and i hope you have an amazing day!! Be tiger fierce! :)

A length of 5.3, a width of 7, and a height of 3.  This would give you the same surface area of 148 as the 1st one. Good luck with your studies <3


How many teaspoons are in
400 milliliters? 1 tsp = 5 ml
400 mL = [?] tsp

Answers

81.153654 Teaspoons!

Peter is twice as good a workman as to when they work together they can finish a task in 16 days if Tom works alone days he will complete the task​

Answers

Answer:

As per the question, Peter can finish twice as much work as finished by Tom in a given duration of time. of their one day work will be completed by Tom. So, Tom will take 48 days to complete the task

Step-by-step explanation:

Let Tom alone take 2x days

Peter alone will take x days

Together in 1 day they do 1/x + 1/2x = 1/16

3/2x = 1/16

2x = 48

ANSWER Tom takes 48 days and Peter takes 24 days

CHECK

1/48+1/24 = 3/48= 1/16

Please help me with the problems in my picture

Answers

Answer:

1.) C

2.) miles

3.) Car A is faster

a) Jelaskan konsep Alam Melayu.​

Answers

Answer: The Malay world or Malay realm, is a concept or an expression that has been utilised by different authors and groups over time to denote several different notions, derived from varied interpretations of Malayness, either as a racial category, as a linguistic group or as a political-cultural group. The use of the term 'Malay' in much of the conceptualisation is largely based on the prevalent Malay cultural influence, manifested in particular through the spread of the Malay language in Southeast Asia as observed by different colonial powers during the Age of Discovery.

-Your friend, Bill Cipher

Step-by-step explanation: Have a great Valentines day <3

Solve the System of Linear Equations by
Substitution with work
3x - 4y = 19
x=5

Answers

3(5)-4y=19
15-4y=19
subtract 15 from both sides
-4y = 19
divide both sides by -4
y = -1


i think thats what u were trying to ask if not reply back

HURRY PLEASE!!! I WILL CHOOSE BRAINLIEST!

Answers

answer:

14

step-by-step explanation:

simply plug in

4p - 6

4(5) - 6

20 - 6

= 14

Answer:

14

Step-by-step explanation:

just plug in 5 as to equal p meaning it will be

4(5)-6

so 20-6

is equal to 14

26 out of the 65 people in a company meeting were managers. What percentage of the meeting attendees were managers

Answers

The answer is 40%.

Explanation:
First divide 26 by 65 and that will leave with 0.4.
0.4 x 100= 40%

Solve for c:



c - (-11) = -12

Answers

Answer:

-23 .......................

An item is originally marked $35.99. The store marks the price down to $28.59. What is the PERCENT MARKDOWN of the item?​

Answers

Answer: 125.8832

Step-by-step explanation:

(35.99/28.59)*100=125.8832

If 10% of x is 20, what is 23% of x? I need help ASAP!!!

Answers

Answer:

B = 46

Step-by-step explanation:

6th grade math help me pleaseeee...

Answers

Answer:

-3.8

Step-by-step explanation:

u = 3.8

u × -1 = 3.8 × -1

-u = -3.8

How do i find the value of x?

Answers

Subtract the sum of the two angles from 180 degrees.

Which line is parallel to y=2/3x−5?
thanks!!

Answers

Step-by-step explanation:

y= 2/3 x +4

for two lines to be parallel they must have the same slope and different y-intercepts

Answer:

y=2/3 z +4

Step-by-step explanation:

THAT'S MY BEST GUESS!!

ILL GIVE U BRAINLYIST

Answers

Answer:

I think the answer is C. 7

Step-by-step explanation:

Since the angle is a right angle you first subtract 55 from 90.You are left with 35.

Secondly we have to divide 35 by 5 to find x.

Therefore 35÷5= 7.

I hope this helps you in any way.

Answer:

c.7

Step-by-step explanation:

the answer is c because the angle shown is a right angle which equals 90°

and 5*7=35+55=90

(you can also use a protractor, you would just have to line it up on vertex vertically) (sorry if that was unclear)

hope this helps :) have a nice day !!

It costs Jesse $1600 to maintain and drive his car for 32 000 km.
find the cost in $ per km.

Answers

Answer:

$20

Step-by-step explanation:

32000 divided by 1600 is 20

so the answer will be $20.

thank you, and if this is right, please let me know!

Answer:

$0.05 per km.

Step-by-step explanation:

1600/32000

= 16/320

= 1/20

= $0.05.

What is the greatest common monomial factor of 6m3x4 + 30m5y2 + 45m3x6y2? 6m5x6y2 3m3 6m3 3m5x6y2

Answers

I’d say 6 but I could be wrong

Answer:

3m³

Step-by-step explanation:

The leading coefficiets, 6, 30 and 45 are all divisible by 3

m is the only variable present in all three terms.

m³ is a factor of m⁵

Their sum is 12 and their product is -85

Answers

Answer:

-5 and 17

Step-by-step explanation:

-5+17 = 12

-5*17 = 12

Look up "Everything You Need To Know About (Your Subject) In One Big Fat Notebook pdf." It's the best thing I've ever been given, I have it with me in class all the time and I've aced every test. I have it with me right now and it has everything I've ever been taught in it so it might help you.

The Big Paint “Mix-Up”
Oh no! The painting machine has gone crazy! Can you help figure out how to
complete these batches? Set up a proportion and then solve it.
write as a prop
1. Brick Red is supposed to be 7 parts red to 2 parts light blue. If the machine
already mixed 28 quarts of red, how many quarts of light blue does it need?

2. Burnt Orange is supposed to be 2 parts red to 1 part yellow. If the machine
already mixed 24 quarts of red, how many quarts of yellow does it need?

3. Sunset Yellow is supposed to be 6 parts yellow to 1 part red. If the machine
already mixed 60 pints of yellow, how many pints of red does it need?

4. Sour Apple is supposed to be 4 parts yellow to 2 parts light blue. If the machine
already mixed 12 pints of light blue, how many pints of yellow does it need?

5. Ocean Blue is supposed to be 4 parts light blue to 3 parts yellow. If the machine
already mixed 12 quarts of yellow, how many quarts of light blue does it need?

6. Midnight Navy is supposed to be 6 parts blue to 3 parts red. If the machine
already mixed 18 blue, how many quarts of red does it need?

Answers

Answer:

1. 8 quarts of blue

2. 12 quarts of yellow

3. 10 pints of red

4. 24 pints of yellow

5. 16 quarts of light blue

6. 9 quarts of red

What is the theoretical probability of rolling a number lower than 7 on a fair number die

Answers

Answer: Choice D

Explanation:

Rolling a number less than 7 is guaranteed to happen since all of the outcomes {1,2,3,4,5,6} are all less than 7. So we have a 100% probability here.

The number 100% converts to the decimal 1.00 or just 1 for short.

Only right answers please :)

Answers

Answer:

Check out the link below

Step-by-step explanation:

https://brainly.com/question/11665146

Answer:

We know

y = 3.5x represents the cost of x pounds of raisins.

Also, cranberries costs $18 per 4 pounds

So, to graph these proportions, we have to find the equation for cranberries, if 4 pounds costs $18, that means 1 pound of cranberries is $4.50, this is the ratio of change of cranberries, using this ratio, we can say that the relation is

y = 4.5x

If you compare, cranberries are more expensive than raisins, the image attached shows both proportion graphed.

Therefore, raisins represent the lower unit price, $3.50 per pound, while cranberries represent the higher unit price, $4.50 per pound.

Answer :

well one line takes the slope of y=3.5x

The cranberries take the slope of Y=4.5x

so raisins have the lowest unit price.

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Below is a drag and drop geometric proof. Complete the proof in your notebook. Click once to select an item at the bottom of the problem. Click again to drop the item in its correct place.

Prove C-2 as an activity.


Given: ∆ABC ~ ∆RST
∆DEF ~ ∆RST

To Prove: ∆ABC ~ ∆DEF

Answers

Let me fill in the statement reasoning for you:

Statement         |           Reasoning

∆ABC ~ ∆RST               Given

∆DEF ~ ∆RST                

∠A = ∠R, ∠D = ∠R         Definition of ~ ∆

∠C = ∠T, ∠F = ∠T          

∠A = ∠D,∠C = ∠F          Transitivity

∆ABC ~ ∆DEF                AA

Kenna's is earning money. The following equation models her earnings: y=55x+1300
Mike is also earning money. The following equation models his earnings. y=25x+1720
*x is the number of weeks, y is total earnings.
In how many weeks, they have the same earnings.

Answers

Answer:

In 14 weeks, they will have the same earnings.

Step-by-step explanation:

y = 55x + 1300 -------- (1)

y = 25x + 1720 -------- (2)

(2) = (1)

55x + 1300 = 25x +1720

55x - 25x = 1720 - 1300

30x = 420

30x ÷ 30 = 420 ÷ 30

x = 14

solve for −5(x + 4) ≥ 4x − 38

Answers

9514 1404 393

Answer:

  x ≤ 2

Step-by-step explanation:

Eliminate parentheses, collect terms, separate variable terms from constant terms.

  -5(x +4) ≥ 4x -38 . . . . . given

  -5x -20 ≥ 4x -38 . . . . . eliminate parentheses

  -20 ≥ 9x -38 . . . . . . . . add 5x

  18 ≥ 9x . . . . . . . . . . . . . add 38

  2 ≥ x . . . . . . . . . . . . . . . divide by 9

Please help me I’m stuck again:)

Answers

Answer:

I think the answer is 8, but i ain't sure so......

Step-by-step explanation:

2 + 8 = 10

10 + 8 = 18

18 + 8 = 26

26 + 8 = 34

Mari can walk 2.5 miles in 45 minutes. At this rate, how far can she walk in two and a half hours?

Answers

Speed = distance/time
Time = 45 min = 45/60 hours = 0.75 hours
Speed = 2.5/0.75 hours = 3.33 miles per hour or 3 1/3 miles per hour

Distance = speed * time

Distance = 3.33* 2.5 = 8.33 miles or 8 1/3 miles

Select true or false for each statement

Answers

Answer:

1.false

2.true

3.true

i am sure. these are the correct answeres

Answers:
1. False : 180 - 180 ?
2. True
3. True

HELP DUE IN 5 MINS WILL GIVE 20 POINTS!!!!

Answers

Answer:

c is the answer i believe

Step-by-step explanation:

The formula for the volume of a cylinder is V= ah, where Vis the volume, r
is the radius, and his the height. Solve the formula for r, and then use it to
answer the question.
A cylindrical bucket contains 452 cubic inches of water. The height of the
water is 4 inches.
What is the radius of the bucket, to the nearest whole number? Use 3.14 for
TT.
A. 8 inches
B. 5 inches
C. 7 inches
D. 6 inches

Answers

Answer:

volume=452in³

πr²h=452

r²=452×4/3.14=575.8

r=√575.8=23.99=24in is your answer

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