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
lesantik [10]
3 years ago
6

It takes 2 hours for a boat to travel 28 miles downstream.The same boat can travel 18 miles upstream in 3 hours .Find the rate o

f the stream's current.
Mathematics
1 answer:
UNO [17]3 years ago
4 0

Answer:

  4 mph

Step-by-step explanation:

The speed downstream is (28 mi)/(2 h) = 14 mph.

The speed upstream is (18 mi)/(3 h) = 6 mph.

The speed of the current is half the difference of these:

  (14 mph -6 mph)/2 = 4 mph

_____

The current adds to the downstream speed and subtracts from the upstream speed, so the difference of those speeds is twice the current's speed.

You might be interested in
Rewrite 9+7=16 using the commutative law of addition
avanturin [10]
Commutative law: a+b=b+a thats it...
So 9+7 can also be written as 7+9=16
3 0
3 years ago
Read 2 more answers
Louise begins factoring the polynomial, which has four terms.
ad-work [718]

Louise wants to factorize completely the given polynomial 4x^{3}+12x^{2}+5x+15

Grouping first, second terms together and third, fourth terms together

= 4x^{3}+12x^{2}+5x+15

Taking 4x^{2} common from first and second terms of the given expression and taking 5 common from the third and fourth terms.

==4x^{2}(x+3)+5(x+3)

Taking (x+3) common from the given expression,

==(4x^{2}+5)(x+3) is the completely factored form.

5 0
3 years ago
6. Find the slope. Make sure to reduce.
zaharov [31]

Answer:

the slope is -1/7 hope this helps

5 0
2 years ago
Ella calculated the missing side length of one of these triangles using the Pythagorean Theorem. Which triangle is it?
torisob [31]
I think that it is a
3 0
3 years ago
Your basketball team scored 4 fewer than twice as many points, x, as the other team. a. Write an expression for the number of po
velikii [3]

Answer:

A) p = 2x - 4  for the expression. B) Your team scored 44 points.

Step-by-step explanation:

Let <u>P</u> represent the points your team made.

Since the question says "Your basketball team scored 4 fewer than twice as many points as the other team." this is how I came up with the expression.

p = 2x - 4 ( our points = 2 times more then the other teams points minus 4.

Using this expression and the given information that the other team made 24 points, I solved B.

44 = 2(24) - 4.

3 0
3 years ago
Other questions:
  • Why is 2 the only number that is always 4 when added multiplied or squared
    5·1 answer
  • Given the function F(x)=3x+2 f(x)=8 find the following f(x)=8
    6·1 answer
  • 3 1/8 - 1 7/8 equals what
    11·1 answer
  • Use stokes' theorem to evaluate c f · dr where c is oriented counterclockwise as viewed from above. f(x, y, z = xyi + 5zj + 7yk,
    12·1 answer
  • I need help _______________________________________________________________________
    7·1 answer
  • How can we write four between five?​
    7·1 answer
  • Can someone help me pls!
    5·2 answers
  • In which part of the graph is the distance from home constant?
    11·1 answer
  • I struggle a lot with pre-algebra pls help
    5·1 answer
  • How many different 6 card hands of three face cards and three ace's can I choose from twelve face cards and four ace's?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!