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

ravity is an attractive force that decreases as the mass of an object increases. Please select the best answer from the choices provided. T F

Answers

what are the answer choices ?

Answer:

True!!

Step-by-step explanation:

Just took the quiz on edge

how many brainliest yall got in total? I have 38. fewest gets brainliest (bc they need it more)

Answers

Step-by-step explanation:

5 :/ tvtvtvybububunubuybybyb

Answer:

i have 7

Step-by-step explanation:

...

Lucymarrisa u still there? I have a question for you I will put in comments (Mathematics)

Answers

Answer:

This is not a chatting place, OK!

Step-by-step explanation:

Q#1: Amanda and Lisa are playing games at the arcade. Amanda started with $15, and the machine she is playing costs $0.75 per game. Lisa started with $13, and her machine costs $0.50 per game. After how many games will the two girls have the same amount of money remaining?
Q#2:The Lone Star Shipping Company charges $14 plus $2 a pound to ship an overnight package. Discount Shipping Company charges $20 plus $1.50 a pound to ship an overnight package. For what weight is the charge the same for the two companies?

Answers

Let D = the amount of money Deanna has after x games.

We know Deanna started with $15 and she spends 0.75 per game, so we can make the following equation:
D = 15 - 0.75x

Let L = the amount of money Lisa has after x games.

We know Lisa started with $13 and she spends 0.50 per game, so we can make the following equation:
L = 13 - 0.5x

The question is asking how many games need to be played for L and D to be equal, so just equate L and D and solve for x:

D = L
15 - 0.75x = 13 - 0.5x
15 - 13 = -0.5x + 0.75x
2 = 0.25x
2 = (1/4)x
8 = x

Therefore they need to play 8 games each to have the same amount of money.

Answer: For question one its 8

Step-by-step explanation: Let A be the variable for Amanda! The amount of money she has for x amount of time. We know that lisa has $13 and she is spending .50 every game. The equation for this would be L=13-0.5x. SO to solve this problem of when they both will have the same amount of money use the equation. 15- 0.75x=13 - 0.5x then you will switch the equation around. So the next step would look like 15-13= -0.5x + 0.75x! Then you'll get 2=0.25x change that to a fraction and you'll get 1/4 and 8=x!

Im so sorry if this is confusing!

please help! show your work if you can.

Answers

Answer:

35 hot dogs and 52 sodas

Step-by-step explanation:

35 hot dogs and 52 sodas

solve for x: 4x + 9 = 2x - 7

Answers

Answer:

-8

Step-by-step explanation:trust me

Answer:

x=8

Step-by-step explanation:

4x+9=2x-7       (subtract both of the numbers with variables)

4x

-2x

2x=+9-7

     -9 -9           (-9-7=16)  +* 2 negatives cancels out to make a positive *+

2x=16

16/2=

x=8

Hopefully this is right! I'm rusty on multiple-step equations. This is the strategy I used over the years.

One brother says of his younger brother: “Two years ago, I was three times as old as my brother was. In three years’ time, I will be twice as old as my brother.” How old are they each now?

Good Luck!!

Answers

Answer:

17

Step-by-step explanation:

Let us suppose two years ago my brother's age was x years

Then, my age was 3x

Three years from now, my brother's age will be (x +2+3) = (x+5) years

And my age will be (3x+2+3) = (3x+5) years

But it is given that i will be twice as old as my brother.

So, 2(x+5)= (3x+5)

or, x= 5 years

So my brother's present age is 5+2= 7 years

And my age is 5*3+2= 17 years

Pretty sure that the answer is 17

The distance on the number line, is its _______________ _______________. It is always _________________________.

Answers

Answer:

answer

Step-by-step explanation:

PLS HELP ME

4.) Write the equation of the line shown below? SHOW WORK!

Answers

Answer: y=1/5x-3/5


Explanation:


Use points (3,0) and (-1,-1) to find the slope and y-intercept.

Use y1-y2/x1-x2 to find slope


-1-0/-1-4
=-1/-5
=1/5

So the slope is 1/5


Then use y-y1=m(x-x1) to find the y-intercept.

y-0=1/5(x-3)

y-0=1/5x-3/5

So the equation is y=1/5x-3/5

Select all the fractions that are equivalent to each other.

(Choose 4)
1/3
1/4
2/8
4/16
2/12
3/12

Answers

1/4
2/8
4/16
3/12

u can convert fractions into percents by multiplying the first number by the second. hope this helped:))

Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Match each expression to the scenario it represents.

Answers

Answer:

im not sure but

Step-by-step explanation:

A goes in C, C goes in D, D goes in A, and B goes in B.

At a dinner, one meal cost $22 and a sales tax of $1.87 was added to the bill.

Answers

Answer:

5.61; 8.5 %

Step-by-step explanation:

Tax = $1.87 per $22 meal

For a $66 meal,

Tax = 66 × 1.87/22

Tax = 3 × 1.87

Tax = $5.61

=====

Tax rate = 1.87/22 × 100

Tax rate = 0.085 × 100

Tax rate = 8.5 %

Does anyone know the answer

Answers

when the graphs intersect eachother

A car is traveling at a steady speed. It travels 2 1/2 miles in 3 1/3 minutes. How far will it travel in 45 minutes​? In 1 hour​? The car will travel nothing miles in 45 minutes.
PLEASE HURRY IM TIMED!!!!! PLEASE HELP!!!

Answers

Answer:

it will travel 18 miles in 45 min. and 30.5 in 1 hr.

Step-by-step explanation:

divide 45 by 2 1/2

divide 60 by 2 1/2

Haley’s recipe calls for 5.5 cups of an ingredient. Her measuring bowl only has measurements marked in liters. Haley knows that one cup is approximately 240 milliliters. Which measurement is closest to the number of the liters of the ingredient that Haley needs for her recipe?

Answers

Answer:

G 1.3 liters

Step-by-step explanation:

5.5 * 240 = 1,320

1,000 milliliters in a liter

1,320/1000 = 1.3

The answer is 1.3 hopefully it’s right

Use expansion shown to simplify the expression 1/2(3x-2/3y)+3(x/2+1/2y) I’m giving brainliest

Answers

Answer: 1 1/6

Step-by-step explanation:

They already added the x for you so all you had to do was combine the y.

-1/3 +3/2

then you find the common denominator

-2/6 + 9/6 = 7/6

therefore you should get 1 1/6

Answer:

7/6

Step-by-step explanation:

A family of 12 went to the local Italian restaurant for dinner. Every family member ordered a drink and meal, 4 ordered an appetizer, and 8 people ordered cake for dessert. Write an Expression
Please help asap

Answers

Answer:

12d + 12m + 3 ap + 6c

Step-by-step explanation:

d= drink

m=meal

ap= appetizer

c=cake

Answer:

12d + 12m + 3 ap + 6c

Step-by-step explanation:

m=meal

d= drink

c=cake

ap= appetizer

HELP PLS
ada has a new puppy that weighs 9 pounds. It is now at about 20% of its adult weight. Here is a diagram that Jada drew about the weight of her puppy. The adult weight of the puppy will be 45 pounds. How can you see that in the diagram

Answers

um we need to see the diagram in order to answer this question sorry...but have a good day :)

Answer:

suck PP for money

Step-by-step explanation:

Three salesmen work for the same company, selling the same product. And, although they are all paid on a weekly basis, each salesman earns his paycheck differently. Salesman A works strictly on commission. He earns $65 per sale, with a maximum weekly commission of $1,300. Salesman B earns a weekly base salary of $300, plus a commission of $40 per sale. There are no limits on the amount of commission he can earn. Salesman C does not earn any commission. His weekly salary is $900. The following table shows the number of sales each salesman had during the first three weeks of this month.

Week 1 Week 2 Week 3
Salesman A 11 14 16
Salesman B 14 15 13
Salesman C 16 12 11
Which salesman had the highest total earnings for the three-week period represented in the table?

Salesman A
Salesman B
Salesman C

Answers

salesman c makes the most 2700

salesman b makes the second most with 2665

salesman c makes the least with 1680

answer salesman c

make brainliest plz

The salesman that has the highest total of earnings for the three-week period  is Salesman C. Give the other answerer the brainliest. :)

Chris types at an average speed of 45 words per minute. He has already typed 1,500 words of his final paper. The paper has to be more than 3,750 words. Which of the following inequalities could be used to solve for x, the number of minutes it will take Chris to finish his paper? ANSWER CHOICES R IN COMMENTS

Answers

Answer:

C. 45x + 1,500 > 3,750

Step-by-step explanation:

You know he has already started on his paper with 1,500 words and he needs to have more words than 3,750 in his final paper which includes the 1,500. Thus, he would have 45x number of words remaining in his paper, according to his speed of 45 words per minute.

Remaining words + 1,500 words must be more than 3,750.

45x + 1,500 > 3,750

The > sign means that something on the left is more than something on the right.

Answer:

C. 45x + 1,500 > 3,750

could you mark me brainliest? xoxo

Step-by-step explanation:

A cell phone company charges $50 for the phone plus a monthly service charge of $30. The equation y =30x + 50 gives the cost y after x months. Which is true of the relationship between x and y?

A. It is linear and proportional.
B. It is not linear.
C. It is linear and nonproportional
D. It is not linear and nonproportional

Answers

Answer:

C. It is linear and nonproportional

Step-by-step explanation:

it does not pass through the orgin and it is a straight.

Answer:

c

Step-by-step explanation:

oopp

A cafeteria worker is wondering how student lunch prices at a high school have changed over time. She researches lunch prices for the years 2000 through 2015 and plots the data in a scatter plot. The best-fit line for the data has the equation y = 0.057x + 1.150, where x is the number of years since 2000 and y is the student lunch price, in dollars.

Determine whether each statement below is true or false based on the equation of the line of best fit. Select True or False for each statement:

The student lunch price was generally increasing between 2000 and 2015

The student lunch price changed by approximately 5.7 cents per year.

The student lunch price in 2015 was approximately $1.15.​

Answers

The answer has to be false.

Pls I need help 20 points

Answers

Answer:

Sorry this is hard I tried several solutions and double-checked them but they were all wrong sorry.

Step-by-step explanation:

This is the graph for both 1/2x+3 and 4x-8y=-24
4x-8y=-24 in to slope intercept form is 1/2x+3
1/2x+3 into standard form is 4x-8y=-24
They are the same equation written in different forms

i will give brainliest

Answers

4m because it looks like 1/3 of 12m and 12 divided by 3 is 4. Hope it’s correct, I deeply apologize if its wrong.

Answer:

4 m because I put it on procreate and put tics on the 12 m to see how much each m was and measured x with that

Please help! I'll give Brainleist if someone gets this right.

*Note; I might report the people who answer, just for points.*

Answers

Answer:

Hope this helps!

Step-by-step explanation:

Brianna did it right, and 552 divided by 23 is 24!

Please give brainiest if you think my answer is good :)

Answer:

brianna's work was correct

Step-by-step explanation:

her work was correct because 20 times 23 is 460 subtact 460 from 552 and u get 92 and 92 subtracted by 92 is zero

and she will get 24 as her answer

What is the difference of the polynomials?

(5x3 + 4x2) – (6x2 – 2x – 9)

Answers

Answer:

The difference of the polynomials (5x3 + 4x2) – (6x2 – 2x – 9) is 5x3 – 2x2 + 2x + 9.

Step-by-step explanation:

Answer:

5x3−2x2+2x+9

Step-by-step explanation:

Distribute the Negative Sign:

=5x3+4x2+−1(6x2−2x−9)

=5x3+4x2+−1(6x2)+−1(−2x)+(−1)(−9)

=5x3+4x2+−6x2+2x+9

Combine Like Terms:

=5x3+4x2+−6x2+2x+9

=(5x3)+(4x2+−6x2)+(2x)+(9)

=5x3+−2x2+2x+9

Mary is planning a party for her brother. She has 36 prizes and 24 balloons. What is the greatest number of children who can attend the party so that each child gets an equal number of prizes and an equal number of balloons?How many prizes and balloons will each child get at the party?Solve the problem using the Distributive Property. Write the equation and show how distributive property was used, along with your final answer

Answers

Answer:

2 balloons and 3 prizes for each child for 12 children

Step-by-step explanation:

I dont really know how to show this in distributive property but thats the answer hope this helped

Answer:

2 balloons / 3 prizes for the 12 kids.

Step-by-step explanation:

I'm not sure on how to do this distributive property work, but i'm pretty sure, from doing my math, that this is the correct answer. Sorry i couldn't help you with this part ;(

Please help!!!
Please don't do it for the points either I will give the brainiest away.

Which expression has the least value?
−14/2
negative 14 over 2
14/−2
14 over negative 2
−9 − 1
negative 9 minus 1
−9 − (−1)

Answers

Answer:c

Step-by-step explanation:

What are the rate of change and the initial value of the function represented by the graph?




The rate of change is 3 and the initial value is 5.


The rate of change is 13 and the initial value is 5.


The rate of change is 5 and the initial value is 3.


The rate of change is 5 and the initial value is 13.

Answers

the answer is either a or b

PLEASE HELP! FINALSS!
A catering company is preparing for 200 guests. They are going to serve a punch that consists of image ginger ale and image juice. The ginger ale will be purchased in bottles that contain 0.75 gallons each.

What is the minimum number of bottles of ginger ale needed so that each guest can have up to three 12-ounce servings of punch?
A. 19
B. 16
C. 17
D. 18

Answers

im guessing the answer is 17 educated guess!!
Other Questions
sin70 sin130 sin170=1/8 yoo im sorry for so many questions but i need yalls help asapWhich of the following statements BEST describes how the amount of sleep you get affects your ability to manage time?A.Too little sleep makes tasks more difficult to perform. B.A proper amount of sleep makes tasks harder to accomplish.C.Too little sleep makes tasks easier too accomplish.D.A proper amount of sleep makes tasks more difficult to perform. Please select the best answer from the choices provided.ABCD For the boy who harnessed the wind. Why are Geoffrey and William so concerned about the farm. I need these done please Jeremiah flies an airplane for 2.7 hours at an average speed of 304.6 miles per hour. How far did Jeremiah fly?82.242 miles822.42 miles8,224.2 miles82,242 miles Oxygen has 6 valence electrons. How many electrons does an atom of oxygen need to become stable?twofoursixeight Please help me the best answer gets brainliest. Why did Hitler want to sign a non-Aggression pact?A. to avoid a two front warB. to avoid going to war with ItalyC. neither 5. What is the distance of something from side to side? The hanger image below represents a balanced equation.a9.14Write an equation to represent the image. What are the rate of change and the initial value of the function represented by the graph?The rate of change is 3 and the initial value is 5.The rate of change is 13 and the initial value is 5.The rate of change is 5 and the initial value is 3.The rate of change is 5 and the initial value is 13. You are the best everyday and be kind it comes from the heart that being true and kind heart. How do we write a formula for those combinations of atoms? The hate you give chapter 12."The tank resembles the ones they show on the news when talking about war in the Middle East. Its the size of two Hummers. The blue-and-white lights on the front make the street almost as bright as it is in daytime. An officer is positioned on top, wearing a vest and a helmet. He points his rifle ahead."What effect does this imagery have? Cromwell's Interiors is considering a project that is equally as risky as the firm's current operations.The firm has a cost of equity of 15.4 percent and a pretax cost of debt of 8.9 percent.The debt-equity ratio is .46 and the tax rate is 34 percent.What is the cost of capital for this project?A) 11.97 percentB) 12.40 percentC) 11.02 percentD) 11.62 percentE) 12.38 percent Which sentence from the passage contains imagery? WILL MARK BRAINLIST PLS HELPAn animal welfare group is curious if the effects of selectively breeding goats to produce more milk is bad for the goats. What would be the BEST question that the welfare group could ask to determine the effects of selectively breeding the goats? A. What does the milk of the selectively bred goats taste like? B. What is the diet the goats are fed in order to produce milk? C. Can you make more money by producing the goats with the desired traits? D. Are there negative traits in the selected traits on the goat population? I have two beakers (A & B) containing clear liquids. The first one (A) holds 75g and after being analyzed proves to contain 4.425g of hydrogen and 70.575g of oxygen. The second beaker (B) holds 125g and analysis shows that it is composed of 7.38g of hydrogen and 117.6g of oxygen. SOMEONE HELP ME PLEASE ILL GIVE BRAINLY If m TUV = 64, mZTUW = 7x - 2,and mZWUV = 24, find the value of x.1udVX =