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
valentina_108 [34]
3 years ago
13

If the rate of the boat in still water is 27 mph, and the rate of the current of a river is x mph, what is the rate of the boat

in each case? a) The boat is going upstream (that is, against the current, which slows the boat down.) b) The boat is going downstream (that is, with the current, which speeds the boat up.) a) The rate of the boat when the boat is going upstream is (_) mph. b) The rate of the boat when the boat is going downstream is (_) mph.
Mathematics
1 answer:
BigorU [14]3 years ago
6 0

Answer:

a)27-x

b)27+x

Step-by-step explanation:

when a boat travels in the same direction as the current is downstream-->speeds the boat. If the rate of the boat in still water is 27 mph and the rate of the current of a river is x mph, the rate of the boat when the boat is going downstream is 27+x

when a boat travels against the current is upstream-->slow down. If the rate of the boat in still water is 27 mph and the rate of the current of a river is x mph, the rate of the boat when the boat is going upstream is 27-x

You might be interested in
Which fraction has a repeating decimal as its decimal expansion?<br> w<br> w<br> w<br> cow
ArbitrLikvidat [17]

Answer:

w

Step-by-step explanation:

idk whats cow but w over co

8 0
3 years ago
Felicia pays for $3000.00 in home repairs using a credit card with a 17% APR. She makes $200.00 monthly payments.
irina1246 [14]

Answer:

262.96 Dollars is for interest

271.91 Dollars is the monthly charged price monthly with the interest included

3262.96 Dollars is the total cost with APR

4 0
3 years ago
Which equation represents a line that is perpendicular to line PQ?
valentinak56 [21]

Answer:

B. y=1/3x+4

Step-by-step explanation:

Hi there!

We are given the line PQ and we want to find the line that is perpendicular to it

Perpendicular lines have slopes that are negative and reciprocal. When they are multiplied together, the result is -1

So first, let's find the slope of the line PQ

The point P is given as (-8, 7) and the point Q is given as (-4, -5)

The formula for the slope calculated from two points is \frac{y_2-y_1}{x_2-x_1} where (x_{1} y_1) and (x_2, y_2) are points

We have the needed information for the slope, but let's label the values of the points to avoid any confusion

x1=-8

y1=7

x2=-4

y2=-5

Now substitute into the formula (m is the slope, and remember: the formula contains SUBTRACTION):

m=\frac{(-5-7)}{(-4--8)}

simplify

m=\frac{-5-7}{-4+8}

add

m=-12/4

divide

m=-3

So the slope of the line PQ is -3

As said above, perpendicular lines have slopes that have a product of -1

So to find the slope of the line perpendicular to PQ, use this formula:

-3m=-1

divide both sides by -3

m=1/3

The only line that has a slope of 1/3 is B (y=1/3x+4), so B is the answer.

Hope this helps!

3 0
3 years ago
Write the following ratio using two other notations. 7 to 6
trasher [3.6K]
7:6 and 7/6. hope this helps.
3 0
3 years ago
Pls i need this, it’s due today.<br> i will mark brainliest.
MArishka [77]

Answer:

Step-by-step explanation:

Y intercepts : 5,-1,3,7,1

X- intercepts: 2,3,1,-1

Its decreasing

It is a negative slope

Maximum : 7 for y

Min : -1

8 0
3 years ago
Other questions:
  • Which is larger 2/25 or 0.11
    6·2 answers
  • Which statement is not always true?
    5·1 answer
  • Fill in the table using this function rule:
    13·2 answers
  • 74ft to 75ft find each percent change to the nearest percent
    8·1 answer
  • I need to replace the carpet for my bedroom floor and the supplier wants to
    12·2 answers
  • To keep her grades up madeline must earn more than 80 points on her science fair project. Let p represent the number of points s
    13·1 answer
  • A nurse is investigating the birth weights of​ non-premature babies. She selects a random sample of 41 such​ babies, and found a
    7·1 answer
  • Geometry help please. Answer choices: A, B, C, or d. Picture beloe.
    12·1 answer
  • Two fair coins are to be tossed once. For each head that results, one fair die is to be rolled. What is the probability that the
    11·1 answer
  • Thomas finished the 200-meter race in 25. 7 seconds while Mikah finished in 28. 1 seconds. How much faster did Thomas run the ra
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!