Math HW, please help:
At its maximum speed, a motorboat can travel 10 miles downstream on a river in 20 minutes. It takes 30 minutes for the boat to travel back upstream the same 10 miles, also at maximum speed.
Write a system of two equations that could be used to find the maximum speed of the motorboat in still water. Let b represent the maximum speed of the motorboat in miles per hour and let r represent the speed of the river's current in miles per hour. Convert the times into hours. Solve the system of equations for b and r to determine the boat's maximum speed in still water and the speed of the river's current.

Answers

Answer 1
What is 76+80000000000000000????? I need to know
Answer 2
this is wayyyy to wordy to figure out. I’d check with your teacher about this question.

Related Questions

A duck was given $9
A spider was given $36
A bee was given $27

Based on this information, what would a cat get? - First right answer get Brainliest!! Good Luck

Answers

Answer:

18

Step-by-step explanation:

The cat would get attacked by the duck AHAHDHAJSHS

solve:[tex]\frac{x}{5}[/tex]=6.x

Answers

x = 30

multiply all terms by 6
X=0

5x6=30x but you must remove the x and add a negative variable so it’s x-30x=0, collect the terms so it’s then -29x=0. Divide them on both times and it’s x=0

I hope this helps!!

Find the equation of the line that passes through the given points on the graph below.

Answers

y = -4/3x - 1

because rise over run is slope or you can do (y2-y1)/(x2-x1) and the y intercept is -1

Answer:

y = -4/3x - 1

Step-by-step explanation:

Help and you get BRANILEST I ALSO PUT 46 points

Answers

Answer:

C

Step-by-step explanation:

my teacher told me

Can someone plz help

Answers

Answer:

it is either 300 or 10 hope this helps please mark brainliest

Step-by-step explanation:

300 or 10 hope i helped

Brainliest to the first right, :))))

Answers

Y=8 thank you for your time

Answer:

y=8

Step-by-step explanation:

You are in the band room when a shipment of new trumpets and trombones arrives. Your music teacher asks you to make sure the order is right. All the boxes are about the same size, so you find the number of boxes in the shipment. There are 27 total boxes. The bill shows the school paid $10,950. In the catalogue, the price of a new trumpet is $350 and the price of a new trombone is $475.
1. Write an equation representing the total number of instruments.
2. Write an equation representing the total cost.
3. Using your equations from Exercises 1 and 2, write and solve the linear system using substitution.
4. How many trumpets did your school receive? How many trombones?
5. Check your results by graphing your linear system.

Answers

Answer:

billington florio gossip ical vetting drop has stop is Rio id drop of hip

attic RIP shop drop tip RIP top top

Step-by-step explanation:

juli h huh unsub Guillermo gumdrop ravish

Two chemicals are mixed in a test tube and a chemical reaction takes place. If this reaction is endothermic and the test tube is touched, which of the following best describes what is felt?

The test tube is cold.

The test tube is warm.

The test tube is very hot.

The test tube is the same temperature as the air.

Answers

The test tube is cold best describes what is felt.

Option A is the correct answer.

What is a chemical reaction?

A chemical reaction is a process that leads to the transformation of one set of chemical substances into another.

In other words, it is the process of breaking and forming chemical bonds between atoms to create new compounds with different properties than the original substances.

We have,

An endothermic reaction is a type of chemical reaction that absorbs heat from the surrounding environment, resulting in a decrease in temperature.

In this case,

The chemical reaction that occurred in the test tube absorbed heat from the surroundings, including the air and the test tube itself.

As a result, the temperature of the test tube decreased, making it feel cold to the touch.

Thus,

The test tube is cold best describes what is felt.

Learn more about the chemical reaction here:

https://brainly.com/question/29039149

#SPJ3

WILL MARK BRAINLIEST PLEASE HELP

Answers

Answer:

(1,2)

Step-by-step explanation:

half it! :)

(4,8)
dilate means to get bigger, so you multiply (2,4) by two

PLEASE HELP URGENT! WILL GIVE BRAINLIEST Chad worked for 435 hours and earned $34.73.

How much would he make if he worked for 615 hours?

Enter your answer in the box

Answers

I’m not sure if you meant to put them in fraction form or not, but if you meant to put them as fractions (4 3/5) (6 1/5) then the answer would be
46.81

Please help me!!! Whoever best explains their answer will get brainliest!!!

Answers

Answer:

yellow I believe is the answer

Answer:

It is the yellow one.

Step-by-step explanation:

When you have 4x+2y=1 and -4x+4y=5 you subtract.

Select all equations that have infinite solutions.
А
2 - 2x = -2(x - 1)
B
2x + 7 = 2x – 7
С
5x + 4 = 5 (x + 4)
D
X – (x - 2) = x
E
5x
4x + 1

Answers

Answer:

Step-by-step explanation:

C

Answer:

B, C, and E, i might not be right though D:

Solve the inequality for x

-3x + 6 < 15

A) x < -3

B) x < -7

C) x > -3

D) x > -7​

Answers

Answer: The answer is maybe a but b is close to a answer also so maybe a or b but c and d is no were close

Step-by-step explanation:

Answer:

the answer is A

Step-by-step explanation:

WHAT IS THE ANSWER?!?!? 8 = 48 ÷

Answers

Answer:

6

Step-by-step explanation:

6*8=48

48/6=8

Answer:6

Step-by-step explanation:

The square below represents one whole. Express the shaded area as a fraction, a decimal, and a percent of the whole.

Answers

Answer as a fraction = 1/2

Answer as a decimal = 0.5

Answer as a percent = 50%

========================================

Explanation:

There are 5 blue rectangles out of 10 total. This forms the fraction 5/10 and that reduces to 1/2 after dividing both parts by 5. Therefore, the fractions 5/10 and 1/2 are the same. Notice that exactly half of the entire figure is shaded blue.

Use long division or your calculator to find that 1/2 = 0.5 which converts to 50% when you move the decimal point 2 spots to the right.

Answer:

5/10 , 0.5 , 50%

Step-by-step explanation:

Please help-

(Ignore the graph part)

Answers

Answer:

Uhm I thought I knew the answer but I don't

Step-by-step explanation:

Sorry I'm no help have a good day tho someone else can probably answer it right tho... Hope you have a good day!!

You would plug in numbers from -2 to 2 in the equation to fill out the chart. The y intercept is 5.

What is the value of the expression -4.5 x -8.5?

Answers

Answer:

38.25 because both numbers are negative and a negative number times a negative number is a positive number.

Step-by-step explanation:

When you multiply just forget about them being negative for a little, and move the decimal to the right until you have a integer (a whole number not a fraction/decimal). Than multiply it how you  normally multiply, now that you have 3825 you have to add the number of spots you moved the decimals which is two one for the top one for the bottom, which is 2 places and then move the decimal 2 places to the left in our number which will make it 38.25. Both numbers are negative and a negative number times a negative number is a positive number. So yeah. :D

38.25 I think is the one

-8x+2y>-6

y>-3+4x

Solve the system if equations pls help me

Ignore my username

Answers

the first one is x < 3/4 + y/4

Please help this is due in 2 periods.

Answers

Answer:

21

Step-by-step explanation:

Use Pemdas.

Parentesis first so 5+4 = 9 and 8-6=2 so, 9X2=18+3=21

12-5-6 and 20 goes into 9 100 times

A construction crew is extending a highway sound barrier that is 13 miles long. the crew builds 1/2 of a mile per week. Write an equation the represents the length Y (in miles) of the barrier after X weeks.

Answers

Answer:

y= 1/2x + 13

because the barrier is already 13 miles long, and they're adding 1/2 miles every week

The equation the represents the length Y (in miles) of the barrier after X weeks is y = (1/2)x + 13

A linear equation is in the form:

y = mx + b;

where m is the slope, b is the y intercept and y, x are variables.

Let y represent the length of the barrier after x weeks.

Since the crew builds 1/2 of a mile per week hence m = 1/2, Also the barrier is 13 miles long, hence b = 13, hence:

y = (1/2)x + 13

The equation the represents the length Y (in miles) of the barrier after X weeks is y = (1/2)x + 13

Find out more at: https://brainly.com/question/18645580

Volume questionnnnnn

Answers

Answer:

a

Step-by-step explanation:

help please
Divide. 64.2 ÷ 100

Answers

Answer:

0.642 is the answer please give brailiest

Answer:

0.642 calculator bc I'm stüpìd

Nick leaves his apartment and travels down two flights of stairs to get to the parking lot below ground level. Nick’s elevation, in feet, as it relates to time is represented by the sketch shown below.

Which statement best represents the three horizontal portions of the graph?




Nick's speed decreases.


Nick is moving but the elevation is constant.


Nick stopped but the elevation is decreasing.


Nick is moving at a constant rate as the elevation is decreasing.

Answers

Answer:

Nick’s speed decreases

Step-by-step explanation:

He’s not going at a steady speed, and his speed only decreases

The answer would be that nicks speed decreases.

Convert phrases to numerical expressions and solve
Ten to the power of four minus one thousand plus one thousand

Answers

Answer:

10000 - 1000 + 1000 = 10000

Step-by-step explanation:

10 to the forth power = 10000 - 1000 = 9000 + 1000 = 10000

1000 hopes this helps luv

solve for s: 6.49s + 8.32 = 27.79

Answers

Answer:

s=3

hope u have a great day

Answer:

s = 3

Step-by-step explanation:

STEPS FOR SOLVING LINEAR EQUATION

6.49s+8.32=27.79

Subtract 8.32 from both sides.

6.49s=27.79−8.32

Subtract 8.32 from 27.79 to get 19.47.

6.49s=19.47

Divide both sides by 6.49.

s=

6.49

19.47

Expand  

6.49

19.47

 by multiplying both numerator and the denominator by 100.

s=

649

1947

Divide 1947 by 649 to get 3.

s=3

Please help get value of x. I believe it is 7 but idk.

Answers

The value of x would be 8

Answer:

It's 8

Step-by-step explanation:

If p(x) = 5(x²+1) + 16, what is the value of p(11)?

Answers

626 bc 5(11^2+1) +16

Find the volume of a hemisphere with a radius of 8. Round to the nearest tenth.

Answers

Answer:

V(hemisphere) = 1072.3in^3

Step-by-step explanation:

To find the volume of a hemisphere, we will have to take the volume of a sphere as a whole and divide it by 2. This is because a hemisphere is half of a sphere.

The volume of a sphere is:

[tex]V(sphere) = \frac{4}{3} \pi r^3[/tex]

Let's plug in the radium of 8 into the equation and solve:

[tex]V(sphere) = \frac{4}{3} \pi (8)^3\\V(sphere) = \frac{4}{3}\pi 512 \\V(sphere) = 2144.660585[/tex]

Now, divide it by 2

V(sphere) = (2144.660585)/2

V(hemisphere) = 1072.3in^3

I hope this helps!!

- Kay :)

Answer:

the answer is V(hemisphere) = 1072.3in^3

Step-by-step explanation:

A ride-share driver completed 6 trips and was paid a flat fee of $90, not including any tips. At this rate, how many trips must he complete to be paid a total of $225?

Answers

Answer:

15

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

Because 90x2.5=225 so then you do 6x2.5 and that is 15.

help please
Dan works a paper route. He started out with 180 papers. He has 65 left to deliver. Write
and solve an equation to find the number of papers Dan has delivered.

Answers

Answer:

so if he has 180 papers now he has 65 the answer should be 115

Step-by-step explanation:

180-65=115

Answer: The Answer is 115. I belive this is correct, please comment if not.

Step-by-step explanation: Ok, so to find this answer all you have to do is subtract 180-65=115

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What was the name of the organization that sought to organize both skilled and unskilled workers, women as well as men, blacks along with whites, and achieved a membership of nearly 800,000 in 1886?. suppose you won $15 on a lotto ticket at the local 7-eleven and decided to spend all the winnings on candy bars and bags of peanuts. candy bars cost $0.75 each while bags of peanuts cost $1.50 each. A (-2,y) B (4,-6), gradient: -1/6Find y using the cross-multiply method Does a small standard deviation mean that the results of the experiment were successful?True or False Avery is renting a car and needs to compare the prices of the two car rental companies. Hertz charges $42 per day and an additional $32 in service charges. Enterprise charges $46 per day and an additional $24 in service changes.Part A: Write an equations for EACH company that represents the total charges for renting a car for a certain number of days. 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