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
cricket20 [7]
3 years ago
5

A rowing team rowed 60 miles while going with the current in the same amount of time as it took to row 30 miles going against th

e current. The rate of the current was 3 miles per hour. Find the rate of the rowing team in still water.
Mathematics
2 answers:
Ivanshal [37]3 years ago
4 0

Answer::

Step-by-step explanation:

Ira Lisetskai [31]3 years ago
3 0

Answer:

9

Step-by-step explanation:

60/(v+3)=30/(v-3)

2(v-3)=v+3

2v-6=v+3

v=9

You might be interested in
The price P of a good and the quality Q of a good are linked.
Irina-Kira [14]

the equilibrium point, is when Demand = Supply, namely, when the amount of "Q"uantity demanded by customers is the same as the Quantity supplied by vendors.

That occurs when both of these equations are equal to each other.

let's do away with the denominators, by multiplying both sides by the LCD of all fractions, in this case, 12.


\bf \stackrel{\textit{Supply}}{-\cfrac{3}{4}Q+35}~~=~~\stackrel{\textit{Demand}}{\cfrac{2}{3}Q+1}\implies \stackrel{\textit{multiplying by 12}}{12\left( -\cfrac{3}{4}Q+35 \right)=12\left( \cfrac{2}{3}Q+1 \right)} \\\\\\ -9Q+420=8Q+12\implies 408=17Q\implies \cfrac{408}{17}=Q\implies \boxed{24=Q} \\\\\\ \stackrel{\textit{using the found Q in the Demand equation}}{P=\cfrac{2}{3}(24)+1}\implies P=16+1\implies \boxed{P=17} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \stackrel{Equilibrium}{(24,17)}~\hfill



3 0
3 years ago
A coin is tossed 4 times. Let E1 be the event "the first toss shows heads" and E2 the event "the second toss shows heads" and so
Elden [556K]

Answer:

The events are independent.

The probability of showing heads on both toss is equal to 1/2

Step-by-step explanation:

The sample space for this experiment consists of 2⁴= 16 sample points, as each toss can result in two outcomes we assume that the events are equally likely.

Two events are independent in the sample space if the probability of one event occurs, is not affected by whether the other event has or has not occurred.

In general the k events are defined to be mutually independent if and only if the probability of the intersection of  any 2,3,--------, k  equals the product of their respective probabilities.

P (A∩B) = P(A). P(B)

P (A∩B)   = 1/2. 1/2= 1/4

                                                                  Head          Tail

 P(E1)= 1/2  ----------          Coin 1               H,H              T,H

                                                                1/4                  1/4

  P(E2)= 1/2  ---------------  Coin 2             H, H               H,T

                                                                      1/4           1/4

So the events are independent.

The probability of showing heads on both toss is equal to 1/2

The sample space for this experiment consists of 2⁴= 16 sample points, out of which eight will have heads on both toss.

Or in other words ( 1/4* 1/4) = 2/4 = 1/2

4 0
2 years ago
• Which expressions are equivalent to 14a + 286?
Sveta_85 [38]

Answer:

2(7a + 143)

what are the answers or are you asking us to find them

7 0
2 years ago
If f of x equals 3x plus 2, find f of 4
Juli2301 [7.4K]

Answer:

f(4) = 14

Step-by-step explanation:

f(x) = 3x+2

Let x=4

f(4) = 3(4)+2

    = 12+2

    = 14

4 0
3 years ago
Find the slope on the coordinate plane (slope is rise/run).​
MatroZZZ [7]

Answer:

-4/2 or -2/1

Step-by-step explanation:

the second answer is just simplified

3 0
2 years ago
Read 2 more answers
Other questions:
  • Help with number one please. Thank you
    11·1 answer
  • Which ordered pair is the solution to the system of equations?
    6·2 answers
  • What is 5.61 written as a percent?<br><br> 0.0561%<br> 0.561%<br> 56.1%<br> 561%
    14·2 answers
  • Please help please please I will give brainliest to best answer-only 2 questions
    15·1 answer
  • What is 503 rounded to the nearest hundred
    15·1 answer
  • Find the length of side a
    9·2 answers
  • Point r and s are plotted on the coordinate plane below. What is the distance between points r and s, to the nearest tenth of a
    9·1 answer
  • Can someone send the work for y=2x-1 y=2x+6
    12·2 answers
  • Plz help me! It’s math!
    8·2 answers
  • Who Bigger 4 kilograms or 4,000 grams
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!