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
Aneli [31]
3 years ago
12

Alvin wants to know what his average paddling rate was for a canoe trip to a campsite. On the way there it took him 8 hours agai

nst a river current of 3 km/ hr. On the way back, the same distance took him 3 hours with the same 3 km/hr current. Let r = Alvin's average paddling rate.

Mathematics
1 answer:
Marizza181 [45]3 years ago
7 0

let

r--------> Alvin's average paddling rate in km/hour

y -------> speed of the current in km/hour



we know that

speed= distance/time ------> solve for distance

distance=speed*time


to Campsite against the current

speed=r-y-----> speed=(r-3)

time=8 hours

distance=(r-3)*8------> equation 2


From Campsite with the current

speed=r+y-----> speed=(r+3)

time=3 hours

distance=(r+3)*3------> equation 1



equate equation 1 and equation 2-----> because is the same distance

(r+3)*3=(r-3)*8----> 3r+9=8r-24----> 8r-3r=24+9-----> 5r=33----> r=6.6 km/hour


therefore


the answer is

Alvin's average paddling rate is 6.6 km/hour


You might be interested in
Find the remainder of (x4 – 2) ÷ (x + 1).
prisoha [69]
Please write   (x4 – 2) ÷ (x + 1)  as  <span>(x^4 – 2) ÷ (x + 1).

We can find the remainder using synth. div. as follows:

      _________________
-1  /  1    0    0    0    -2
              -1    1   -1    1
     ------------------------------
         1   -1    1   -1    -1

The remainder is -1.</span>
5 0
3 years ago
Can someone please tell me what 2 - 1 1/2 equals? Please answer quickly !!!
sergeinik [125]

the answer is 3/2 to this question

7 0
3 years ago
Read 2 more answers
What is the set of integers
amid [387]
The set of integers consists (0), the positive natural numbers (1,2,3,) also called whole numbers, and their additive inverses the negative integers(-1, -2, -3,).
7 0
3 years ago
I’ll give you an extra 60 points please me within 5 minutes
azamat

Answer: (3p^2 + 1) . (p^3 +4)

Step-by-step explanation:

Area of a rectangle equals length multiplied by width. Given length as 3p^2 + 1 and width as p^3 + 4

Area = 3p^2 + 1) . (p^3 +4)

This is so as 4 is not a cube and cannot be factored.

I hope this helps.

7 0
2 years ago
Use the order of operations to find the value of the following expression.
AURORKA [14]
The answer is 95

Work

100 - (2)(8) + 11
100 - 16 + 11
84 + 11
= 95
3 0
2 years ago
Read 2 more answers
Other questions:
  • Help me plz i need help.
    13·1 answer
  • V equals lwh solve for l<br><img src="https://tex.z-dn.net/?f=v%20%3D%20lwh%20%5C%3A%20solve%20%5C%3A%20for%20%5C%3A%20l" id="Te
    12·1 answer
  • I am very confused, please help!
    8·1 answer
  • If April jump ropes 1/3 of an hour everyday how many hours does she jump rope in a week?
    13·2 answers
  • Which ordered pair is a solution of the equation?
    15·2 answers
  • 1. The graph below shows the past 9 months of sales for the Carver Cars company. у Carver Cars Sales Car Sales (in dollars) 200,
    6·1 answer
  • Help me with this its super hard
    5·1 answer
  • At a school bake sale, all of the pies were cut into 6 pieces, so each person who bought a piece got ⅙ of a pie. Each slice sold
    11·2 answers
  • PLS HELP WILL GIVE BRAINLIEST!!!!!
    13·2 answers
  • Y'all... Please help I need help with freaking math...
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!