A power boat travels along a river in which the flow of water is at a constant in one direction. If the boat travels at 40 mph downstream and 30 mph upstream. What is the speed of the boat in still water and the speed of the river?

Answers

Answer 1

Answer:

im guessing 35mph

Step-by-step explanation:

Answer 2

Answer:

30 mph and 40 mph

Step-by-step explanation:

It is the same with the speed and water.


Related Questions

what is the sum of 5 1/4 and 3 2/6

Answers

Answer:

8.5

Step-by-step explanation:

8.5 is the answer I think

A robot can complete 7 tasks in 2/3 hour. Each task takes the same amount of time. How long does it take the robot to complete one task? How many tasks can the robot complete in one hour?

Answers

Answer:

a. is 2/21 hours to complete one task

b. is 10 1/2 tasks in one hour

Robot takes 2/21 hour to complete the task.

In one hour, robot complete 21/2 task.

What is ratio?

Ratio basically compares quantities, that means it show value of one quantity with respect to other quantity.

If a and b are two values, their ratio will be a:b,

Given that,

Time taken to complete 7 tasks = 2/3 hours.

To find the time taken to complete one task and tasks that completed in one hour,

Use ratio method,

7 tasks take = 2/3 hours

1 task takes = 2/(3 x 7) = 2 / 21 hours.

In 2/3 hours = 7 tasks completed,

1 hour = 21/2 tasks.

In one hour, 21/2 tasks can be completed.

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Susie walk 10 miles each week. she has already walked 3 miles this week and expects to walk 100 miles how long will it take her to walk 100 miles

Answers

Answer:

10 weeks

Step-by-step explanation: 100÷10=10

big brain

Answer:

9 week and 4 days

Step-by-step explanation:

The ratio of blue paint to yellow paint in a certain color of green paint is 2.1. A painter wants a total of 14 quarts of green paint Blue paint is

$16.64 per quart and $34.96 per gallon. Buying the least amount needed, how much will it cost to purchase the blue paint in the most economic

way?

Answers

Answer:

The blue paint with a unit price of [tex]34.96\,\frac{USD}{gal}[/tex] is the most economic option for the painter. (Cost: [tex]x = 8.74\,\frac{USD}{qt}[/tex])

Step-by-step explanation:

Both gallon and quart are capacity units, we must keep in mind that a gallon equals 4 quarts. We need to convert each price in the same units. In this case, we decided to use US dollars per quart as our reference unit. Hence:

Blue paint 1 ([tex]16.64\,\frac{USD}{qt}[/tex])

No unit conversions are needed.

Blue paint 2 ([tex]34.96\,\frac{USD}{gal}[/tex])

We proceed to the following conversion:

[tex]x = 34.96\,\frac{USD}{gal}\times \frac{1\,gal}{4\,qt}[/tex]

[tex]x = 8.74\,\frac{USD}{qt}[/tex]

The blue paint with a unit price of [tex]34.96\,\frac{USD}{gal}[/tex] is the most economic option for the painter. (Cost: [tex]x = 8.74\,\frac{USD}{qt}[/tex])

2. During a trip, Dawn rented a car for an initial fee of $20 plus $2 per mile. The total charge comes
to $40. Which equation can be used to calculate the number of miles that Dawn drove the rental
car?

Answers

Answer:

2x+20=40

Step-by-step explanation:

40

Step-by-step explanation:

i did 20x2=40 to find the answer

Help!Asap!
The Surface areas of the two solids shown above are equal
A.true
B.false

Answers

Answer:

False

Step-by-step explanation:

For the one on the left I got 234 and the one on the right I got 248

I think the answer is false:)

S is the midpoint of RT. RS=x2 and ST= 8-2x. Find both values of x.

Answers

Answer:

x = -4 or 2

Step-by-step explanation:

We are told that S is the midpoint of RT.

Thus; RS = ST.

Now we are told that RS = x² and ST = 8 - 2x

Thus;

x² = 8 - 2x

x² + 2x - 8 = 0

Using quadratic formula;

x = [-2 ± √(2² - 4(1 × - 8))]/(2 × 1)

x = (-2 ± √36)/2

x = (-2 ± 6)/2

x = -4 or 2

18+45-9(2)
Using order of operations

Answers

Answer:

45

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

18 + 45 - 9(2)

PEM -> 18 + 45 - 18

AS -> 45 (18 and - 18 = 0)

Kenya went to the convenience store to buy some snacks. She spent a total of
$12.00 on soda and candy. The soda cost $3.00 and each candy bar cost $1.50. If
Kenya bought one soda, how many candy bars did Kenya buy?

Answers

Answer:

6

Step-by-step explanation:

12

-3

----

9 divided by 1.50= 6

Kenya buy 6 candy bars.

What is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

for example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Give:

Kenya spent a total of $12.00 on soda and candy.

The soda cost $3.00 and each candy bar cost $1.50.

Now, Money left after spending on Candy

= 12- 3

= $9

Now, number of candy bars Kenya buy is

= 9/ 1.50

= $6

Hence, Kenya buy 6 candy bars.

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40. Mari has 42 green beads, 30 yellow beads, and 54
blue beads. She wants to use all of the beads and
string the beads so that she has the same number of
each color on a string of beads. What is the greatest
number of strings of beads she can make?​

Answers

Answer:

30

Step-by-step explanation:

30 because she has 30 yellow beads and we can take away 30 from the other numbers. So 30 is the greatest number of strings of beads she can make. Hope this helped,have a great day!

Answer: The answer is 30

Ms. Lynch needs to ship 89 boxes. 47 boxes weigh 150 pounds each. Each of the other boxes weighs 210 pounds. Mia says that all 89 boxes can fit into one container. She reasons that 47x150 is less than 7,500 and 42x210 is a little more than 8,000, so the sum of their weights should be less than 15,000. Do you agree? Explain your reasoning.

Answers

Answer:

No . Mia states that the sum of the weights should be less than 15,000 .

Step-by-step explanation:

42x150=7050

   

42x210=8820

7050 + 8820 = 15,870 which is not less than 15,000

Freda saved $4 each week for 8 weeks to donate she donates the same amount to 2 charities how much will freda donate to each charity ?

Answers

Answer:

$16

Step-by-step explanation:

4 * 8 = 32

32/ 2 = 16

If she saves four dollars a week for eight weeks and divides her savings to donate to two charities, each charity would recieve $16

use the graph if y=f(x) below to find f(4)

Answers

Answer:

there is no graph. can you edit the question?

Answer:

Ok:

Step-by-step explanation:

Welp, I don't see the graph but I can tell you what to do. You find x = 4, and draw a vertical line up. Once your line reaches the graph, see what the y value is. If the question is nice, you should get an exact integer number

Help me with this question pleasee

Answers

Answer:

√23 = a

Step-by-step explanation:

/ab/²= /ac/²+/bc/² (Pythagoras theorem)

12² = a² +11²

144 = a² + 121

144 - 121 = a²

23 = a²

√23 = a

Reuben spent a total of $60 at the grocery store. Of this amount, he spent $27 of fruit. What percentage of the total did he spend on fruit

Answers

Answer:

45%

Step-by-step explanation:

Since we are given the total spent (denominator) and the amount spent on the fruit (numerator) we can simply divide one by the other which would give us the percentage, in decimal form, of the total that he spent on fruit. We then multiply this decimal by 100 to get the actual percentage value like so...

[tex]\frac{27}{60} = 0.45[/tex]

0.45 * 100 = 45%

Finally, we can see that the percentage of the total amount that was spent on fruit was 45%.

The y-coordinate of the vertex of the parabolic graph of
f(x) = ax2 + bx + c
is

Answers

hello,

y-coordinate is found by computing f(0)=c

so this is the point (0,c)

the vertex is found for x = -b/(2a)

[tex]f(\dfrac{-b}{2a})=\dfrac{ab^2}{4a^2}-\dfrac{b^2}{2a}+c\\\\=\dfrac{b^2-2b^2+4ac}{4a}\\\\=-\dfrac{b^2-4ac}{4a}[/tex]

So this is the point ( -2(2a), -(b^2-4ac)/(4a) )

thanks

The vertex of the parabolic graph is, [tex]\rm\left ( -4a, \dfrac{-b^2+4ac}{4a} \right ) \\\\[/tex]

Given that,

[tex]\rm f(x) = ax^{2} +bx+c[/tex]

We have to determine,

The y-coordinate of the vertex of the parabolic graph?

According to the equation,

The vertex of a parabola is the point at which the parabola passes through its axis of symmetry.

In case the coefficient of the x² term is positive, and then the vertex will be located at the lowest point on the graph, the point at the base of the “U”-shape.

On the contrary, if the coefficient of the x² term is negative, the vertex will be located at the highest point on the graph, at the top of the “U”-shape.

Therefore,

The vertex of the parabola of the given quadratic equation,

[tex]\rm f(x) = ax^{2} +bx+c[/tex]

The co-ordinate is founded when x = 0,

[tex]\rm f(x) = ax^{2} +bx+c\\\\\rm f(0) = a(0)^{2} +b(0)+c\\\\\rm f(0) = c[/tex]

Then, The vertex is found at point (0, c) at x = -b\2a,

[tex]\rm f \left (\dfrac{-b}{2a }\right) = a\left (\dfrac{-b}{2a }\right) ^2 + b \left (\dfrac{-b}{2a }\right) +c\\\\f \left (\dfrac{-b}{2a }\right) = a \left (\dfrac{b^2}{4a^2 }\right)- \left (\dfrac{b^2}{2a }\right) +c\\\\f \left (\dfrac{-b}{2a }\right) = \left (\dfrac{b^2}{4a }\right)- \left (\dfrac{b^2}{2a }\right) +c\\\\f \left (\dfrac{-b}{2a }\right) = \dfrac{b^2-2b^2+4ac}{4a}\\\\f \left (\dfrac{-b}{2a }\right) = \dfrac{-b^2+4ac}{4a}\\\\[/tex]

Hence, The vertex of the parabolic graph is, [tex]\rm\left ( -4a, \dfrac{-b^2+4ac}{4a} \right ) \\\\[/tex].

For more details refer to the link given below.

https://brainly.com/question/1254213

Joe is the proud owner of Joe's Old Time BBQ Pit. He sells two types of BBQ sauce - Hot N' Spicy and Mild Mannered. Each gallon of Hot N' Spicy requires 2 quarts of tomato sauce and 2 cups of hot peppers. Each gallon of Mild Mannered requires 3 quarts of tomato sauce and 1 cup hot peppers. Joe makes a profit of $38 on each gallonof Hot N' Spicy and $35 profit on each gallon of Mild Mannered. He has 18 quarts of tomato sauce and 10 cups of hot peppers on hand. How many gallons of each type of BBQ sauce should he make to maximize his profits? ​

Answers

Answer:

P=$254

Step-by-step explanation:

let Hot N' Spicy be x

and Mild Mannered be y

  the objective function is

38x+35y=P

the constraints are

1. tomato sauce

2x+3y=18--------1

2. hot peppers

2x+y=10--------2

solving 1 and 2 we have

using substitution method

2x+y=10--------2

y=10-2x

put y=10-2x in eqn 1

2x+3(10-2x)=18

2x+30-6x=18

2x-6x=18-30

-4x=-12

x=12/4

x=3

put x=3 in eqn 2 we have

2(3)+y=10

6+y=10

y=10-6

y=4

He should make 3 gallons of Hot N' Spicy

and 4 gallons Mild Mannered

38(3)+35(4)=P

114+140=P

254=P

P=$254

Solve the formula for v: A=Z+vg
V=

Answers

Answer:

(a-z)/g =v

Step-by-step explanation:

Answer:

v = (A-Z)/g

Step-by-step explanation:

you would put A-Z over g

A = Z + vg

Subtraction property of equality

A-Z = vg

division property of equality

(A-Z)/g = v

Symmetric property of equality

v = (A-Z)/g

Tell me what quadrant this angle is in.

Answers

Answer:

Second quadrant

Step-by-step explanation:

[tex] \because \: \frac{ \pi}{2} < \theta < \pi \: bounds \: second \: quadrant \\ \\ \therefore \: \sin \theta = \frac{4}{5 } \: lies \: in \: second \: quadrant.[/tex]

n f(x) =10-2( x ), Solve when given f(12) function notation

Answers

Answer:

-14

Step-by-step explanation:

[tex]10 - 2(12) = - 14[/tex]

solve this equation 16+7+4x+x+3x+7

Answers

Answer:

27+8x

Step-by-step explanation:

Calendar

Mr. Torrence goes to La Jalpita to buy rolled ice cream. An ice cream with no toppings is $2.50 and

every topping is priced at $0.29 each. Show your work and justify your answers.

Files

a) Write an algebraic equation to find the total cost (C) for ice cream depending on (t), the number of

toppings. Label the variables.

...

Equation: C=0.295 +2.50

b) Using the equation you wrote, calculate (algebraically) how many toppings Mr. Torrence can buy if

he wants to spend only $4.00 on it?

func

Apps

al

1

Answer: Mr. Torrence can get

toppings if he only has $4.00 to spend.

Help

tan

Page 1 of 2

329 words

English (U.S.)

100% +

Give Feedback to Microsoft

Answers

Answer:

(a) C = 0.29t + 2.50

(b) 5

Step-by-step explanation:

The variables are defined as follows:

t = the number of  toppings

C = total cost for ice cream

It is provided that:

An ice cream with no toppings is $2.50.Every topping is priced at $0.29 each.

(a)

The algebraic equation to find the total cost for ice cream depending on the number of  toppings is:

C = 0.29t + 2.50

(b)

Compute the number of toppings Mr. Torrance can buy if  he wants to spend only $4.00 on it as follows:

C = 0.29t + 2.50

4.00 = 0.29t + 2.50

0.29t = 4.00 - 2.50

0.29t = 1.50

t = 5.1724

t ≈ 5

Thus, Mr. Torrance can buy 5 toppings.

A right triangle has one 40° angle. Find the other two angles.
° (smaller value)
° (larger value)

Answers

a triangle = 180°

one angle = 90°
second angle = 40°
third angle = 50°

find the slope from the table

Answers

Answer:

5

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

Wayne is hanging a string of lights 45 feet long around the 3 sides of his rectangular patio, which is adjacent to his house. The length of his patio, the side along the house, is 5 feet longer than 2 times its width. Find the length and width of the patio.

Answers

Answer:

45=2w+L and L=2w+5          

45=2w+L                                  45=2w+(2w+5)

                                                45=4w+5

                                                40=4w

                                                10=w                  

L=2w+5                                    L=2(10)+5

                                                L=20+5

                                                L=25                        

The length of the patio is 25 feet and the width of one side of the patio is 10 feet. Because there are two width sides and one length side, this all adds up to be 45 feet long.

Can I get brainliest please?

Original Amount = 1,250

Amount of Change = 618

Percent Increase =
Amount of Change
Original Amount


The percent change is about
.

Answers

Answer: 49.4%

Hope this is the answer you are looking for!

Answer:

49.44%

Step-by-step explanation:

PLEASE HELP!!!!!!!!BRAINLIEST PLUS 16 POINTS
y = −5x2 + 10x + 12.

Part A: Show your work to complete the square of the function. (1 point)

Part B: Identify the vertex of the function. (1 point)

Part C: Explain how to determine the maximum or minimum value of the function. (2 points)

Answers

Answer:

5x2=10+10=20+12= 32.

Step-by-step explanation

The correct answer is 32.

Hope I helped.

Find the average height of the building shown in the table hint to find the average of the values and divide the number of value​

Answers

In order to find the average, you need to sum all values and the result divided by the number of values.

For example, let's say that you have these values: 2, 3, 4, 5 ,5 ,6 ,7.

The first

The second step is divide this result by the number of values:  

Hence, the average for this example is 4.6.

"There are 9 students in a class. 3 of them are selected to form a committee where each member is assigned a unique position in the committee (President, Vice President, etc.) How many different committees are possible?"

Answers

Answer:

6

Step-by-step explanation:

Someone please help!!!!!!

Answers

Answer:4/5 > 5/7 > 3/8 > 1/3 > 2/7

Step-by-step explanation: just make them all one denomator and do the greatest to least greatest

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A square corner of 16 square centimeters is removed from a square paper with an area of 9x2 square centimeters. A square. Most of the square is shaded blue. In the bottom right of the square is a smaller square, outlined in a dashed line, and not shaded. Which expression represents the area of the remaining paper shape in square centimeters? (x 7)(x 9) (3x 2)(3x 8) (3x 4)(3x + 4) (9x 1)(x + 16) The bee's wool beetle is an inappropriately named insect. It has no direct, lasting connection with bees. It eats larvae and dead insectsdoes attack other insects but not bees. The bee's wool has been observed resting on flowers, but it does not sip nectar. It most likely uses thisposition to hunt for other insects who might be drawn to the plant.What is the main idea of this paragraph?01. Nature can be very harsh.2. Insects often eat other insects.3. The bee's wool has a misleading name.4. Insects are often attracted to flowers. 2. y= -3x+8 and 6x+2y= -10 pls help!! slove as (x,y) Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions.Online Content: Site 1Explain the role of the task system in the daily life of slavery. (Site 1) How do the 13 Virtues relate to Franklins purpose in writing his autobiography?a. Franklin's purpose was to identify how humans can try to change, but ultimately remain the same people.b. Franklins purpose was to show individuals can improve themselves and the virtues are ways to accomplish this goal.c. Franklin's purpose was to ensure that people stayed true to previous Puritan values during the Enlightenment period. Aspirin is a weak organic acid whose molecular formula is HC9H7O4. An aqueous solution of aspirin is prepared by dissolving 3.60 g/L. The pH of this solution is found to be 2.6. Calculate Ka for aspirin. (atomic mass: C I WILL GIVE BRAINLIEST AND 36 PointsRefer to screenshots8. Which line on the graph represents the equation y=3x-2? line A line Bline C line D9.Which equation represents the graph?y = |x| 4y = |x 4|y = |x + 4|y = |x| + 412.Which equation represents the graph?y = |x| + 6y = |x 6|y = |x| 6y = |x + 6|17.Which set of ordered pairs corresponds to the graph?{(5, 1), (4, 2), (0, 1), (2, 3), (5, 1)}{(2, 3), (5, 1), (5, 1), (1, 0), (4, 2)}{(5, 1), (2, 3), (0, 1), (4, 2), (5, 1)}{(2, 4), (1, 5), (1, 0), (1, 5), (3, 2)}19.Which equation is represented by the table?Y=-|X-1|-4Y=|X-1|-4Y=-|X+1|-4Y=|X+1|-4 HELPPP !Select all that apply.What did people do when the animals they hunted became scarce?a. They moved to new areas to hunt.b. They started to farm.c. They ate nuts and berries.d. They went on diets. Math hep!!!!!!!!!!!!! The van used 12 gallons of fuel when it traveled 204 miles. How many miles will the van have traveled when it has used 18 gallons of fuel? a ship travels from savannah georgia to lisbon spain at a rate of 27.6 miles/hour. if the distance covered is 3982 miles how long did the trip take HELP ME OUT PLEASE!! I NEED HELP !This diagram represents one of the four levels of industry. Which term bestcompletes the diagram?Factory employeesOil refinery workersButchersA. Quaternary sectorOB. Secondary sectorC. Tertiary sectorD. Primary sector Which is the most effective combination of the first two sentences of this paragraph?A) The yard needed mowing badly, Clint did not want to do it.B) The yard needed mowing badly, so Clint did not want to do it.C) The yard needed mowing badly, but Clint did not want to do it.D) The yard needed mowing badly, therefore Clint did not want to do it. Is 2 an irrational number Which statements best describe half lives of radioactive isotopes Kyle has experience in tracking inventory. What company might be interested in hiring Kyle?a city clinic offering night classes to adultsa grocery store looking for a produce managera city managers office interested in balancing the budgeta state safety agency looking for an inspector what is the use of buffer? find the value of x (pic attached) examples when demand may have got out of a hand? Which is an example of a type of crime scene search pattern?))A)boxedB)circularC)gridspacial