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
Anna007 [38]
3 years ago
6

A boat traveled 189 miles downstream and back. The downstream trip took 7 hours. The trip back took 21 hours. Find the speed of

the boat in still water and the current.
Mathematics
1 answer:
SSSSS [86.1K]3 years ago
5 0
 7hrs/ =x
21hrs 189
1323=7x
7       7
189=x
the speed of the boat in still water is 189
i got the answer by setting a proportion.
hope it work
You might be interested in
joel is laying pipe for a sprinkler system before he plants his lawn . the lawn is a rectangle, 15 feet long and 8 feet wide. he
Nadya [2.5K]

Answer:

The length of the pipe = 17 feet

Step-by-step explanation:

length = 15 feet

width = 8 feet

Pythagorean theorem,

(diagonal)² = (length)² +(width)²            {all angles of rectangle are 90°}

                   = 15² + 8²

                   = 225 + 64  = 289

diagonal    = √289 = √ 17 * 17

                   = 17 feet

7 0
3 years ago
7(5 - 6x) - 4x =-8 + 35 show work
Sever21 [200]
This is the work and the answer is 4/23 or (in decimal form) 0.17391304

5 0
3 years ago
What is 7.849+0.09? can you help me find the answer?
zmey [24]

Answer:7.939

Step-by-step explanation:

5 0
3 years ago
The lengths of a professor's classes has a continuous uniform distribution between 50.0 min and 52.0 min. if one such class is r
rodikova [14]
The distribution is uniform for 50 ≤ x ≤ 52.
where x =  minutes per class.

The probability P(x < 50.6) is the shaded portion of the distribution.
Its value is
(50.6 - 50)/(52 - 50) = 0.3

Answer:
The probability is  0.3 or 30%

7 0
3 years ago
Assume the cost of a car is $25,000. With continuous compounding, in effect, the cost of the care will increase according to the
Masja [62]
The value of t that makes the factor e^(.032t) have the value of 2 can be found using logarithms.
  2 = e^(0.032t)
  ln(2) = ln(e^(0.032t)) = 0.032t
  t = ln(2)/0.032 ≈ 21.66

It would take 21.66 years for the cost to double.
4 0
3 years ago
Other questions:
  • Determine whether the rational root theorem provides a complete list of all roots for the following polynomial functions. f(x) =
    8·2 answers
  • Trini took some photos. The number of the photos she took is a two digit number.the sum of the digits is 11.the tens digit is 3
    11·1 answer
  • 5-2(4a+1)+3a=13 <br><br> A= 2/3<br> A= -2<br> A= -6/5<br> A=2
    15·1 answer
  • A batch consists of 12 defective coils and 88 good ones. Find the probability of getting two good coils when two coils are rando
    12·1 answer
  • Which of the following is the equation of a line perpendicular to the line y =
    6·1 answer
  • Find the vertex of this function <br> f(x)= x^2+4x-12
    9·1 answer
  • Dawn has 5/6 yard of lace. she uses 4/5 of it for a dress and the rest for a jewel box. how much ove does she use for the jewel
    6·1 answer
  • What is the perimeter of this rectangle?
    11·1 answer
  • What is the product of -8/1 * -1/8​
    15·2 answers
  • Find the area of the regular polygon. Give the answer to the nearest tenth.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!