A boat travels 120 miles with the current down the river in less time than it takes to travel 80 miles against the current up the river. The boat makes the entire trip in 12 hours. The speed of the boat, without the current, remains constant at 20 miles per hour what is the speed of the current.

Answers

Answer 1

Answer:

180 miles is answer

cuz it takes 80 miled to travel in 12 hours

Answer 2

Answer:

The speed of the current is 10 mph

Step-by-step explanation:

x= speed of the current

[tex]\frac{80}{20-x} + \frac{120}{20+x} = 12[/tex]

80 (20+x) + 120 (20-x) = 12 (20-x) (20+x)

x=10


Related Questions

Plz help me well mark brainliest if correct...........???

Answers

Answer:

A. Second Grade

Step-by-step explanation:

Can anyone solve this for me??!

Answers

Answer:
60mi^2
Step by step explanation:

25 points

A triangular prism has a height of 5.5 yards and a triangular base with the following dimensions.



What is the value of B?

41.25 yd 2
40 yd 2
120 yd 2
60 yd 2

Answers

Answer:

60 sq yd

Step-by-step explanation:

B = area of the base of the prism = area of the triangle

  = bh/2           b = 15    h = 8

  = 8*15/2

  = 60 sq yd

A new car is purchased for 15300 dollars. The value of the car depreciates at 14.25% per year. What will the value of the car be, to the nearest cent, after 6 years?

Answers

Answer:

you would have 8 cents

Step-by-step explanation:

:D hope this helps!!

Help set up the equation :D the answer in the answer box is wrong

Answers

X=3.4
Y=10 if that not right then switch x=10
Y=3.4

how would you move the green shape exactly over the gray shape using the fewest moves? check only necessary moves

Answers

Answer:

C and B

Step-by-step explanation:

The correct answer would be C and B

One radius of a circle is the same length as any other radius of the same
circle.
A. True
B. False

Answers

A. True

In a circle, all radii have the same length. The radius is the distance from the center of the circle to any point on its circumference. Since the center is equidistant from all points on the circumference, all radii will have the same length. Therefore, the statement is true.

A researcher wishes to test whether the mean of a normally distributed population is greater than 1.06 at the 5% significance level. Based upon 22 independent observations, she observes a sample mean of 1.77 and a sample standard deviation of 0.84. Determine the critical value of the test rounded to the nearest hundredth. (Rounding counts!).

Answers

Answer:

t- critical value =1.721

Step-by-step explanation:

Given

Sample size =n=22

Degree of freedom = sample size -1 = 22-1 =21

The significance level is 5%. This indicates that the test is right tailed.

The alpha value = 0.05

For given right tailed test, with value of alpha = 0.05 and degree of freedom = 21, the  t- critical value =1.721

what is 75 as a fraction of 125? give your answer in its simplest form.​

Answers

75 as a fraction of 125 would be 75/125

Now Lets simplify

75/25=3

125/25=5

We get 3/5

We can not reduce 3/5 anymore, so the answer is 3/5

A fraction is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25. 75 is 3/5 fraction of 125.

What is a Fraction?

A fraction is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25.

Let 75 be x fraction of 125. Therefore, we can write the statement as,

x × 125 = 75

x = 75/125

x = 3 /5

Hence, 75 is 3/5 fraction of 125.

Learn more about Fraction:

https://brainly.com/question/1301963

#SPJ2

125
Solve for <1.
41 = [?]
21
37°
88°

Answers

Answer:

<1+125=180°{linear pair}

<1=180-125

<1=55

Please help me find 'x' your help would be much appreciated


-Thanks

Answers

Answer:

x=25.

Step-by-step explanation:

We know because of corresponding angles, the sum of the angle adjacent to (2x-5) and (2x-5) is 180 degrees

2x-5+5x+10=180

7x+5=180

7x=175

x=25

30)
The variable y is directly proportional to the variable x. If y = 12 when x = 14, what is the value of x when y = 747

Answers

Answer:

871.5

Step-by-step explanation:

directly proportional

y = kx

y = 12 when x = 14

12 = k(14)

k = 12/14

k = 6/7

--------------------------

what is the value of x when y = 747

747 = (6/7) * x

Multiply both sides by 7/6

747 * 7/6 = x

871.5 = x

plz help me this for my grade

Answers

Answer:

[tex]\text{Equation: }V=5\cdot 4\cdot 6,\\\text{Volume: }120\:\mathrm{in^3}[/tex]

Step-by-step explanation:

The volume of a rectangular prism is given by [tex]V=l\cdot w\cdot h[/tex].

Thus, we have the equation:

[tex]V=5\cdot 4\cdot 6[/tex]

Solving, we get:

[tex]V=5\cdot 4\cdot 6=\boxed{120\:\mathrm{in^3}}[/tex].

Answer:

120

Step-by-step explanation:

length time width time height

6 times 4 times 5

would be you equation the 120 would be your volume  

Does the commutative property work for subtraction and division?


no


yes

Answers

Answer:

NO!

Step-by-step explanation:

:-p

Can someone please help me I will mark u brilliant

Answers

Answer:

The mean is 12.

Step-by-step explanation:

Add all the given numbers

7 + 14 + 15 + 9 + 11 + 14 + 11 + 10 + 17

Which equals to 108

You divide 108 by the total numbers added which in this case is 9.

108/9 = 12

Hope this helps :)

Ohh I did this before the mean is
98 you divide that by 9= 10.88

I fell like your in the same class of me because I had the same test and the it looks like what the teacher gave u

OKK PLEASE HELP if correct will give brainliest help and 5 star pls help by 1230 pt

Answers

I’m sorry but I can’t help you I don’t know this one is there any other questions I can help you withBecause I think the answer would be 12°

Please help you dont have to do them all

Answers

Answer:

can u zoom into it

Step-by-step explanation:

What is the value of r, in inches?
7 in.
B
1403
30°
D
21
X

Answers

9514 1404 393

Answer:

  A.  7√3

Step-by-step explanation:

The side length ratios in a 30°-60°-90° triangle are 1 : √3 : 2. Here, the shortest side is 7, and x is the next-longer side.

  x = 7√3

Options are:

80
45
90
100

Answers

=>x+45+45=180°

=>x+90=180°

=>x=180°-90°

=>x=90°

help will give max points and branlisest plls HELP ASAP BY 1230pt thanks ;]

Answers

Answer:

120cm^3

Step-by-step explanation:

Whats 9+10?
Answer the question.

Answers

Answer: 21

Step-by-step explanation: Okay but actually its 19 :)

One pipe fills an empty tank in 3 hours. A second pipe fills the same tank in 6 hours. A third pipe can empty the full tank in 5 hours. If all three valves were left open, how long would it take to fill the empty tank?

Answers

6 would be your answer

Which numbers are irrational?
-4
5/19
0.573
7/3
Pie
Square root of 11

Answers

The irrational numbers are 5/19, pi and square root of 11

Answer:-4 and 0.573

Step-by-step explanation:


Help plzzzzz hurry

Answers

Answer:

-9, -5, -4.1, -4

[tex]\\q\leq -4[/tex]

Step-by-step explanation:

I think what you're missing here is that there is a negative sign in front of the q. This means that whatever number you put in for q will be multiplied by negative 1. Positive numbers will become negative, and negative numbers will become positive.

If you substitute 9 for q you will get [tex]-9\geq 4[/tex], which is clearly not true, because -9 is way less than 4.

For writing the equation you divide both sides by -1. When you do this however, you must flip the inequality sign

[tex]-q\geq 4\\q\leq -4[/tex]

the > sign turned into <, and the q and 4 switched signs.

WILL


GIVE


BRAINLIST



...
..
MATH

Answers

Answer:

+213

Because its above sea level it means positive but if it is below sea level it is negative.

Gordon types 2,508 words in 38 minutes. Find the unit rate. Gordon types words per minute.​

Answers

Answer:

66 words per minute

Step-by-step explanation:

In 38 minutes , words that can be typed by Gordon = 2508 words

In 1 minute, words that can be typed by Gordon = 2508/38

                                                                                = 66 words

Therefore Gordon types 66 words per minute.

hope it helps :)

Answer:

66

Step-by-step explanation:

To find the unit rate you would need to find how many words Gordon can type in one minute. To do that, all you need to do is divide 2,508 by 38 (which would get you 66 words). If you set up a proportion to solve this it would look somewhat like 2,508/28 = 66/1.

~ ~

List the side lengths from shortest to longest. (20 points)

Answers

Answer:

b, a, c

Step-by-step explanation:'

The side opposite of the smallest angle(50) is always the smallest, which means b is the smallest

Hope this helps!

Answer:

b ,a ,c

Step-by-step explanation:

The side opposite the smallest angle is the shortest

The smallest

x = 180 - 70 -62 = 48

48 is the smallest angle so b is the smallest side

The side opposite the largest angle is the longest side

70 is the largest angle so c is the longest side

b ,a ,c

Solve for x in this equation: 3/4+ |5-x| = 13/4

Answers

Answer:

  x = 2.5 or 7.5

Step-by-step explanation:

Subtract 3/4.

  |5 -x| = 10/4 = 2.5

This resolves to two equations:

5 -x = 2.5   ⇒   x = 5 -2.5 = 2.55 -x = -2.5   ⇒   x = 5 +2.5 = 7.5

The solutions are x = 2.5 or 7.5.

A mathematics textbook has 6 pages of instruction for every 2 pages of practice problems. How many pages of instruction does it have for every page of practice problems? (NO LINKS, IF I SEE A LINK I'LL TAKE IT DOWN

Answers

Answer:

3 pages of instruction for every practice problem

Step-by-step explanation:

Which of the following set of angle measures represents the measures of the angles of a triangle?​

Answers

We need to see a pic...??
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Based on this excerpt, what was the goal of the French revolutionaries?"All the citizens have a right to decide, either personally or by their representatives, as to the necessity of the public contribution; to grant this freely; to know to what uses it is put; and to fix the proportion, the mode of assessment and of collection and the duration of the taxes."A to make the king share powerB to ban the government from collecting taxesC to give the peasants a set amount of free landD to kill the nobles and redistribute their wealth to the people plz answer these questions without putting links and fileswhat is 3/4 multiplied by 1/2 then add 3/4what is 1 and 1/8 multiplied by 1/2 then add 3/4 how did increased trade with asia affect european society? Can someone please help? !! 275436divisible by 11 The hypotenuse of a right triangle measures 17 cm. One leg of the triangle measures 15 cm. Find the length of the other leg of the triangle. Ginger spent $24 at the fair, which was three times the amount she spent last year at the fair. How much money did Ginger spend last year at the fair? Whats the answer for the last one Find the total surface area of the pyramid.4 in.6 in.6 in. Megan has 2 red marbles, 5 blue marbles, and 8 yellow marbles. What is the ratio of red marbles to blue marbles in rational number form? A. 5/2 B. 2/8 C. 2/5 D. 5/8 why the initial cost of production of GMO is high These may all be classified asesA)crustaceansB)invertebratespredatorsD)vertebrates Sources A and B emit long-range radio waves of wavelength 360 m, with the phase of the emission from A ahead of that from source B by 90. The distance rA from A to a detector is greater than the corresponding distance rB from B by 130 m. What is the magnitude of the phase difference at the detector? PLS HELP I WILL MARK BRAINLIEST Convert 12 radians to degrees. Round your answer to the nearest tenth. The purpose of informed consent is toa) justify unnecessary medical proceduresb) provide detailed records in case of legal actionc) make sure that patients get only the care that they wantd) better educate public about the importance of medicine Professor T. has a reputation for not covering very much material in his course, giving high-school-type exams that consist of spitting back memorized definitions, and being an easy grader. After several years, he discovers that a large percentage of the students who sign up for his course are only looking for the easiest way to get a high grade and are uninterested in learning the subject. This is an example of: What is a limiting factor?? 2. What does y equal? *y+3/4 = 6