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
zloy xaker [14]
3 years ago
13

A kayaker can paddle 12 mi in 2 h moving with the river current. Paddling at the same pace, the trip back against takes 4 h. Ass

ume that the river current is constant. Find what the kayakers speed would be in still water.
Mathematics
1 answer:
Firdavs [7]3 years ago
7 0
Downstream DATA:
distance = 12 miles 
time = 2 hours 
rate = 12/2 = 6 mph
----------------
Upstream DATA:
distance = 12 miles 
time = 4 hrs 
rate = 12/4 = 3 mph
----
Equations:
Downstream: b + c = 6
Upstream::: b - c = 3
------
Add to get:
2b = 9
b = 4.5 mph (speed of the boat in still water.)
-----
Solve for "c":
b + c = 6
4.5 + c = 6
c = 1.5 mph (speed of the current)
The answer is 1.5 mph
You might be interested in
I don’t get this :(
muminat
Ok so for the first one it’s super simple I’m gonna do it as less complicated so it can help you :)


So first we need to convert the mixed number to an improper fraction


1 4/5 = 9/5


Now we need to reduce the numbers greatest common divisor which is 3

3/5 x 6

Now multiply the numbers


Your answer is 18/5 I hoped this help



Now for the second one

this one is a little more complicated and I don’t know how to make it sound easier so I’m gonna tell you the answer which is 580/21


The last one is the same steps we did for the first one which is 27/20



I hoped this helped you it is a little difficult but you’ll get the hang of it :)

5 0
3 years ago
Use (<,>,=) to compare 2/3 and 3/4
lina2011 [118]
2/3 < 3/4. Hope that helps
3 0
3 years ago
Please answer correctly !!!!!!! Will mark brainliest !!!!!!!!!!!!!!
Mamont248 [21]

Answer:

y= -x^2+5

Step-by-step explanation:

It normally expontionally goes up, so across the x axis is down so it is negative, and is is all scales up, so the start is 5 up from the origin on the y axis, so it would be y=-x+5

Hope this helped!

7 0
3 years ago
Simplify this (2x)^{3}
Margaret [11]

Answer:

8x^3

Step-by-step explanation:

(2x)3

=(2x)3

=2x*2x*2x

=8x^3

7 0
3 years ago
I want to cancel my subscription effective immediately !!!
krok68 [10]

Lol, wydm???????????????????

6 0
3 years ago
Other questions:
  • A number cube is rolled and a coin is flipped.find the probabilities below
    10·1 answer
  • What is the difference 7/78 - 3 1/4=
    6·2 answers
  • Two planes intersect in exactly one point.<br><br> A)always<br> B)sometimes<br> C)never
    11·1 answer
  • Find the sum of the interior angle measures of the polygon.
    15·1 answer
  • What is the value of x?<br><br> x = ___
    7·1 answer
  • The heart rate variability​ (HRV) of police officers was the subject of research published in a biology journal. HRV is defined
    14·1 answer
  • Find the distance between the two points.<br> 8. (-1,0), (-8, 4)
    5·1 answer
  • The ratio of males to females in the class is 5 to 9. If the lunchroom has the same ratio but 45 females, how many males are in
    14·2 answers
  • Help plzzz someone solve it i need help
    5·1 answer
  • 4.what is the equation of the line perpendicular to y = 3/4x + 2 and goes
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!