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
AVprozaik [17]
3 years ago
8

Two people paddle a canoe 8 miles upstream in two hours. They then turn around and paddle 8 miles downstream in one hour. If the

y are paddling at the same rate both upstream and downstream, how fast are they paddling? How fast is the current?
Mathematics
1 answer:
sladkih [1.3K]3 years ago
5 0

Answer:

Step-by-step explanation:

This question can be solved by generating two equations

let V = the speed at which they are paddling and U = the speed of the stream

they paddle the canoe up stream which is 8 miles in 2 hrs

the speed = 8 miles / 2 h = 4 mi/hr

since it is upstream;

V - U = 4 mi / hr ....... (1)

downstream

V  + U = 8 mi / hr ...... (2)

make U subject of the formula in equation 2

U = 8 mi /h - V

substitute in equation 1

V - ( 8 mi / hr - V ) = 4 mi/hr

2 V - 8 mi/hr = 4 mi/hr

2 V = 4 + 8 = 12 mi/hr

V = 12 / 2 = 6 mi / hr

to find how fast current was moving substitute the value of V into any of the equation

V - U = 4 mi/hr

6 mi/hr - U = 4 mi /hr

- U = 4 - 6 mi/hr = - 2 mi / hr

U = 2 mi/hr

You might be interested in
Anton works at the First National Bank. His employer offers him a pension retirement plan, which will be 1.45% of his average sa
shepuryov [24]

Answer:

31217.34

Step-by-step explanation:

92000+92800+99000+100500+105000=489300/5=97860 avg salary

97860X.0145=1418.97x22=31217.34

5 0
3 years ago
Which equation could be used to solve the problem? Joan picked 4 bushels of apples in one hour. At that rate, how many bushels w
jeka94
Hello!

Unit rates can be written as ratios. In this case, we have 4 bushels in one hour, or 4:1. In eight hours, we can multiply like a fraction, multiplying both by eight to get eight hours.

Our final answer is B) 8·4.

I hope this helps!
3 0
3 years ago
A toy factory makes 15 teddy bears every 10 minutes. The factory makes teddy bears for 8 hours each work day. What is the fewest
Igoryamba

Answer:

hats

Step-by-step explanation:

3 0
3 years ago
Leilani is a member of her schools for person 1600 Meter relay team in each really Lelani runs 1/4 of the 1600 meter relay team
taurus [48]

Answer:

She ran a total distance of 8,800m or 8.8km

Step-by-step explanation:

In this question, we are asked to calculate the total distance ran by Leilani if at each meet she runs a distance that is exactly equal to a quarter of the total and she competed 22 times during the year.

Firstly, we proceed to calculate the the distance she runs at each relay for her team. We were told she runs a distance equivalent to a quarter.

Mathematically, the distance she runs will be ; 1/4 * 1,600 = a distance of 400 meters

Now, we are told that she ran at 22 different track meets last year. So the total distance she ran will be 22 * 400 = 8,800m or 8.8km

6 0
3 years ago
How much is two thousand three hundred and five-tenths, plus one hundred twenty-five and one-hundredth, plus five thousand ten a
mrs_skeptik [129]
The answer is B. 

Hope that helps, if you need any more help, just ask : )
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is 28.9-26.8 HELP ME PLEASE
    14·2 answers
  • Help wanted pleasse. I'd be very thankful, you'd be even more awesome
    8·1 answer
  • Some people advise that in very cold​ weather, you should keep the gas tank in your car more than half full. Lou​'s car had 6.1
    14·1 answer
  • From five number summary 7,13,17,21,43
    10·1 answer
  • Find the distance between the two points.<br><br> (−4, 7), (4, 0)
    7·1 answer
  • Jethro is planting flowers in his garden. He wants the ratio of tulips to roses to be 3 to 2. Jethro wants to plant a total of 5
    9·1 answer
  • Can someone tell the rules for this plz hurry it’s timed
    15·1 answer
  • 2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2<br> uh hi how do you cope with a p/r/nt h/tt/ng you? -Regina
    10·2 answers
  • HEYYYY I NEED HELPPPP AS SOON AS POSSIBLE
    15·1 answer
  • Solve the following inequality:<br> ALGEBRA 1
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!