1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
WARRIOR [948]
3 years ago
15

A boat traveled 336 miles downstream and back. The trip downstream took 12 hours. The trip upstream took 14 hours. What is the s

peed of the boat in still water? What is the speed of the current
Mathematics
1 answer:
Alexeev081 [22]3 years ago
3 0

x - boat speed; y - current speed; Path = 336:2 = 168 miles

1) 12 * (x + y) = 168; -> x + y = 14;

2)  14 * (x - y) = 168; -> x - y = 12;

1) x = 14 - y;

2) (14 - y) - y = 12;

14 - 2y = 12;

2y = 2;

y = 1 mph

x = 14 - 1 = 13 mph

Answer:

Boat speed = 13 mph

Current speed = 1 mph

You might be interested in
People who use aluminum siding are satisfied Therefore, if you don't use our aluminum siding, you won't be sati ud.
Eva8 [605]

Answer:

The conclusion is invalid.

The required diagram is shown below:

Step-by-step explanation:

Consider the provided statement.

People who use aluminum siding are satisfied Therefore, if you don't use our aluminum siding, you won't be satisfied.

From the above statement we can concluded that those use aluminum siding are definitely satisfied but it may be possible that some people don't use aluminum siding but they still satisfied.

Therefore, the conclusion is invalid.

The required diagram is shown below:

3 0
3 years ago
Events A and B are independent. find the missing probability<br> P(A)= 1/4 , P(B)= 3/5, P(B I A) =?
Svetach [21]

Answer:

hello : P(A and B) = 3/20

Step-by-step explanation:

events A and B are independent:

P(A and B) = P(A)×P(B)

P(A and B) = (1/4)×(3/5)

P(A and B) =3/20

continu ....

P(B/A)= P(A and B) / P(A)

3 0
3 years ago
Find the average rate of change for f(x) = x2 + 9x + 18 from x = −10 to x = 10.
igor_vitrenko [27]
The average rate of change formula is 
           f(b) - f(a)
arc = ----------------
               b-a
                    
Here, a= -10 and b = 10

                   (10)^2 + 9(10) + 18 - [ (-10)^2 + 9(-10) + 18]
Here arc = --------------------------------------------------------------
                                     10 - (-10)

10^2 and -(-10)^2 cancel.     18 - 18 cancel.

                                               90 - (-90)            180
This leaves us with     arc = ----------------- = ------------- = 9 (answer)
                                                   20                     20
7 0
3 years ago
8 - 3(2-(3 + 1)2 = 8.2)​
Nataly_w [17]
-3 (-6=82)+8
im pretty sure like 80%

4 0
2 years ago
14 1/6 - 7 1/3 in simplest form <br> Help plz
Firdavs [7]

Answer: 7 -1/6

Step-by-step explanation:

Multiply the denominator and numerator (1/3) by 2 to get 2/6, then do 1/6-2/6, which gives you a negative. Then subtract your whole numbers (14-7) to get 7 -1/6

7 0
3 years ago
Read 2 more answers
Other questions:
  • 100 POINTS PLEASE ITS URGENT I HAVE 5 MINS COME ON PEOPLE I WILL ALSO MARK BRAINLIEST PLEASE
    12·2 answers
  • Simplify 4a​ +​ ​ ​8b ​ -​ ​ ​6b​ +​ ​ 2a​
    13·1 answer
  • Simplify -3 square root of 84x^3
    6·1 answer
  • How do I write 0.225 as a fraction in simplest form
    8·2 answers
  • Is x to the zero power less than 1
    6·1 answer
  • What does measure angle ECF equal?
    9·1 answer
  • Which type of reasoning allows you to use observation to find the next three
    10·1 answer
  • Grandfath
    9·1 answer
  • Using the diagram, which fraction is equivalent to 1?
    10·1 answer
  • Rotation 90° counterclockwise about the origin
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!