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valentina_108 [34]
3 years ago
9

Please I needa answer !!

Mathematics
1 answer:
Alecsey [184]3 years ago
7 0

Answer:

the answer is B and C

Step-by-step explanation:

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Need help please...answer correctly ​
Lelechka [254]

Answer:

9.09

Step-by-step explanation:

x=speed of boat

y=speed of water current

Downstream relative speed = x+y

Upstream relative speed = x-y

Distance remains the same for both upstream and downstream.

a) Distance travelled downstream = speed x time = 3(x+y)

Distance travelled upstream = speed x time = 3.6(x-y)

b) Since both distances are equal, we can write

3(x+y)= 3.6(x-y)

3x+3y = 3.6x-3.6y

6.6y = 0,6x

x=11y: y=x/11

c) Water current has speed as 1/11 times of that of boat

In percent this equals 100/11 = 9.09%

3 0
3 years ago
Read 2 more answers
Micheal models an experiment. He places a model car on a tramp that can be adjusted to different heights. Each time the model ca
Nadusha1986 [10]

Answer:A

Step-by-step explanation:

because i just know iot is

8 0
2 years ago
-3/10b=2/5 what is b in this equation
forsale [732]
X = -4/3
Hope this helps ,
Give thanks !
3 0
3 years ago
Read 2 more answers
-0.9+28<br> ----<br> 6<br> help me solve the task <br>im a little lazy ​
Anvisha [2.4K]

Answer:

around 4.52.

Fraction form: 4\frac{52}{100}

Step-by-step explanation:

Brainliest?

7 0
3 years ago
A researcher randomly selected 30 people to participate in a study to investigate which of two materials, A or B, used in the he
Yanka [14]

Answer:

Design 1

Step-by-step explanation:

Design one would work better because the students get to see both materials (each on one foot) and if they do the same things each day with both feet, they can test how the material works with the activity...If that makes sense

6 0
3 years ago
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