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
pentagon [3]
3 years ago
13

I need step by step explanation for this problem :) Thank you >3

Mathematics
2 answers:
IrinaVladis [17]3 years ago
7 0

Step-by-step explanation:

Since Bridget rows 1 hour 4 kilometers upstream and 30 minutes (half of one hour) kilometers, downstream, then we have to find the average speed of both times. First, let's find how long Bridget would have to row upstream every kilometer.

Step 1:

60 minutes ÷ 4 kilometers = 15 minutes per kilometer (upstream)

30 minutes ÷ 4 kilometers = 7.5 minutes per kilometer (downstream)

Step 2:

Now, we find the average of 15 and 7.5. To do that, we add the values together and divide them by the number of values there are (2).

15 + 7.5 = 22.5

22.5 ÷ 2 = 11.25

Answer: Bridget takes 11.25 minutes to row 1 kilometer in still water.

mestny [16]3 years ago
3 0

Answer: Bridget rows at an average of 6 km per hour. The speed of the current is 2 km per hour.

Step-by-step explanation: Given the distance of 4 km and the two times, 1 hr and 1/2 hr, we can figure the speeds to be 4k/h and 8k/h. The average is 6k/h. The difference between her average and the actual speeds recorded is 2k/h against hr going upstream and with her going downstream.

You might be interested in
Do you guys know the answers to these?
frutty [35]

Answer:

The first one is 0 slope.

The second one undefined slope.

Step-by-step explanation:

I hope it helps you!!!:-)

7 0
2 years ago
If the congruent angles of an isosceles triangle each measure 41 degrees, What is the measure of the third angle?
geniusboy [140]

Answer:

98 degrees

angles of a triangle always add up to 180 degrees. 41+41= 82. 180-82= 98

3 0
3 years ago
Which expression is equivalent to (144k^2r^14)1/2 for all positive values of k and r?
FrozenT [24]

Answer: B

Step-by-step explanation:

4 0
3 years ago
Scarlett is trying to find the height of a dam. She stands 90 meters away from the dam and records the angle of elevation to the
andrew-mc [135]
90(tan26) + 1.65 = about 107.7378 meters
3 0
3 years ago
Please help thanks!!
Sidana [21]

So for this, you will be doing two different multiplications: 3 x 4 and √8 x √3.

3 x 4 = 12

√8 x √3 = √24

Now our result is 12√24, however, this can be simplified. Using the product rule of radicals (√ab = √a x √b), our simplification is such:

12√24 = 12√(8 x 3) = 12√(4 x 2 x 3) = 2 x 12√(2 x 3) = 24√6

In short, the answer is 24√6, or the first option.

4 0
3 years ago
Other questions:
  • What are like terms in the expression?
    8·2 answers
  • Consider the following hypothesis test:H 0: = 17H a: 17A sample of 40 provided a sample mean of 14.12. The population standard d
    13·1 answer
  • 739/1000 as a decimal
    8·2 answers
  • Please helpp, and please don’t use links
    8·1 answer
  • Pls answer both questions for branliest and 20 points
    8·2 answers
  • Solve by Graphing: y = 2x - 1. (1/3x + 4 )<br>Answer ( , ) ​
    10·1 answer
  • In the figure shown below If line m is parallel to line n then find the value of x
    8·1 answer
  • Find the commission on a sale of $8,432 at 12 % commission.
    11·1 answer
  • How do we convert decimal numbers into binary numbers 2483?.
    9·1 answer
  • (((20 POINTS)))
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!