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
Can u answer with steps?
nasty-shy [4]

Answer:

if a:c=2:3 andb:c=3:4therefore a:c=2:4

8 0
2 years ago
Solve for x: - 2x – 4 < 10
Charra [1.4K]

Answer:

The correct answer would be the second one: x > - 7

Step-by-step explanation:

Hope this helps!

8 0
3 years ago
Solve x2 + 8x + 8 = 0 by completing the square. Which equation is used in the process?
garri49 [273]

x² + 8x + 8 = 0

x² + 8x + 8 + 8 = 0 + 8

x² + 8x + 16 = 8

x² + 4x + 4x + 16 = 8

x(x) + x(4) + 4(x) + 4(4) = 8

x(x + 4) + 4(x + 4) = 8

(x + 4)(x + 4) = 8

(x + 4)² = 8

6 0
3 years ago
Read 2 more answers
What is greater 5/6 7/12 or 7/10
algol [13]
5/6
you can do 2 things here
use a calculator and divide the numerator by the denominator
or the method you're probably meant to use
change each fraction so they all have the same denominator
the common denominator in this case would be 60
5/6*10=50/60
7/12*5=35/60
7/10*6=42/60
the number with the highest numerator would be the larger fraction
in this case, being 50/60 or 5/6
7 0
3 years ago
Read 2 more answers
Find the y-intercept and the axis of symmetry of f(x) = ax2 – 6ax +2.
stepan [7]
The axis of symmetry is x=3, and the y-intercept is 2.
7 0
3 years ago
Other questions:
  • Mark, Tom, and Travis fit in the backseat of the car. If they enter the car in a random order, what is the probability that Mark
    8·1 answer
  • Which expression has the fewest significant figures?
    10·2 answers
  • Which slope and y-intercept correspond with the graph?
    9·2 answers
  • Gcf of 6x^3, 8x^5, 10x^7
    6·1 answer
  • “Three times the sum of a number and 4”
    12·2 answers
  • What is true about preferred stocks?
    9·2 answers
  • How do I get (tan^2(x)-sin^2(x))/tan(x) equal to (sin^2(x))/cot(x)
    9·1 answer
  • Some one talk to me :(
    10·2 answers
  • Can someone help me with this?
    7·1 answer
  • The triangle below are similar. Which similarity statements describe the relationship between the two triangles? Check all that
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!