The system of equations relates the distance, y,
from a station of two trains and the speed, x, at which they are moving.
y + 10x = 250
2.5y = -25x + 625
a. What does the system of equations tell you about the speed
of the trains?
b. What does the solution tell about the locations of the trains if they
left the station at the same time? If they left at different times?

Answers

Answer 1

Answer:

a . It is a simultaneous speed.


Related Questions

PLEEESE HELP
i will give brainly to the right answer

Answers

Answer: a

Step-by-step explanation:

Please help!!! Give me answer and i give you brainliest!!

Answers

Answer:

b, d, e, f

Step-by-step explanation:

Answer:

B,C, E, F

Step-by-step explanation:

B : 5+3 x 4. first you do 3 x 4 which is 12 the + 5 which equals 17

C:  I-6+4I first you do -6 + 4 which equals -2 but it is absolute power so it is 2

E: 2 x 2 x 2 x 2 x 2 is 32

F: 12 divded by 4 is 3, so then 3 x 3 is 9

I need help with this

Answers

Answer:

<A = <D, <C = <F

Step-by-step explanation:

PLZ HELP!!! ILL MARK THE FIRST ONE BRAINLIST

Answers

Answer:

Longitudinal Wave

Step-by-step explanation:

I really don't know how to explain this, it's just the answer.

the answer is longitudinal wave

the measure of an angle is 12 degrees. what is the measure of its supplement

Answers

Since the measure of an angle is 12 degrees less than the measure of its supplement, then x=180-x-12 or 2x=168 or x=84 and 180-x=96. Step 4. ANSWER: The angle is 84 degrees and its supplementary angle is 96 degrees.

Answer:

168

Step-by-step explanation:

Supplementary angle is two angles that total 180 degrees.

180-12=168

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 weekly paycheck amount for each salesman, p, is a function of the number of sales, s, they had in that week.

Salesman A Salesman B Salesman C
s = 0 (0,
) (0,
) (0,
)
s = 1 (1,
) (1,
) (1,
)
s 10 (10,
) (10,
) (10,
)

Answers

Answer:

12 sales

Step-by-step explanation:

Let x represent the number of sales each man had.

For Salesman A, he earns $65 per sale; this is 65x.

For Salesman B, he earns $40 per sale; this is 40x.  We also add to this his weekly salary of $300; this gives us 40x+300.

Since their pay was equal, set the two expressions equal:

65x = 40x+300

Subtract 40x from each side:

65x-40x = 40x+300-40x

25x = 300

Divide both sides by 25:

25x/25 = 300/25

x = 12

Need help ASAP!! I Can give brainlist for the first right person.

Answers

Answer:

Step-by-step explanation:

1. 720,000

2. 119.50

3. 17.68

4. $75

5. 77.74

Please help, giving 25 points!!!!!!!!
1/3x+y=15
Which of the following are ordered pairs of the equation above?
A. {(16, -3),(15, 0),(14, 3)}
B. {(-3, 14),(0, 15),(3, 16)}
C. {(-3, 16),(0, 15),(3, 14)

Answers

Answer:

B

Step-by-step explanation:

According to my calculations and math The answer is B


Gina visited the aquarium with some of her cousins, aunts, and uncles. The group bought 20 admission tickets for $340. Adult tickets cost $20, and children’s tickets cost $15. How many adult tickets and how many children tickets did the group buy?

Write a system of equations.

Answers

Answer:

Look at the attachment

Step-by-step explanation:

There are 12 children tickets did the group buy.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The group bought 20 admission tickets for $340.

And, Adult tickets cost $20, and children’s tickets cost $15.

Let number of children = x

And, Number of adult = y

Hence, We get;

The system of equations are,

x + y = 20  

y = 20 - x .. (i)

And, 15x + 20y = 340

3x + 4y = 68 .. (ii)

Substitute the value of y from (i) in (ii);

3x + 4(20 - x) = 68

3x + 80 - 4x = 68

80 - 68 = x

x = 12

Thus, There are 12 children tickets did the group buy.

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ3

PLEASE HELP ME PLEASE

Answers

Answer:

1

Step-by-step explanation:

Answer:

pretty sure it is 1

Step-by-step explanation:

Good luck

PLZ

2. What is the sales price for an Xbox 360 that originally sells $230 if it is on sale for 28% off the original price?


3. What is the difference between discounting a $45,000 car by 25% versus marking up the price of the car by 25%?


4. How much would you pay for the discounted price of the car including 8.875% sales tax?


5. How much would you pay for the marked up price of the car including 8.875% sales tax?


6. If Thomas helped you buy the car that was on sale in question #3, he is entitled to a 6% commission at Sherman Auto Mall. How much commission will he earn for the car that was "on-sale" in #3?

Answers

see below

Step-by-step explanation:

2.) $230 x 28% = $64.40

$230 - $64.40 = $165.60 sales price

3.) $45,000 × 25% = $11,250

$45,000 - $11,250 = $33, 750 discount price

$45,000 + $11,250 = $56,250 mark up price

$56,250 - $33,750 = $22,500 answer

4.) $33,750 x 8.875% = $2995.31

$33,750 + $2995.31 = $36,745.31 with tax

5.) $56,250 x 8.875% = $4,992.19

$56,250 + $4,992.19 = $61,242.19 with tax

6.) $33,750 x 6% = $2,025.00 Tom's commision

What are the answers to these questions??

Answers

Answer:

1) c and d

2) 44

3) a and c

1: if 96 is the 100% price and 32% is what you need to find, it is 32 out of 100. 0.32 is the same, as well as 32/100.

2: if you divide the shape into different pieces, i find it easier to find the area. 9 x 3 = 27. 4 x 2= 8. 3 x 3 = 9. 27+8+9=44.

3:  the ratio 8:20 can be simplified down to 2:5 which makes A true. if the ratio is originally blue:red, then for c, 10:4 is the same as 4:10 since it states red to blue instead of blue to red, meaning c is also true.

Answer:

1. C and D.

2. 34

3. A and C

Step-by-step explanation:

1. All you have to do is solve each equation in order to see which ones are equal to the same answer

A. 32 * 96 = 3072

B. 3.2 * 96 = 307.2

C. 0.32 * 96 = 30.72

D. 32/100 * 96 = 30.72

Both C and D have the same answer.

2. Add up all the sides

9+6+5+4+3+3+2+2= 34

3. Look at each answer carefully.

A. There are 2 blue cubes for every 5 red cubes. True

B. When the game has 56 cubes in all, there are 40 red cubes. False

C. The ratio of red to blue cubes is 10:4. True

D. The ratio of all cubes to blue is 28:20. False

HELP PLEASEEEEEE!!!!!!!!!!!!!!!


Part A
Write and simplify an expression to represent the combined number of accessories sold.
Part B
Factor the simplified expression.
Part C
If the toy store sold 5 dozen of the latest action figure, how many accessories did the store sell? Enter your answer in the box.
______ accessories

Answers

D!! Cuz it’s d lol I just did it

Answer:

d

Step-by-step explanation:

Estimate 79% of 82 show work

Answers

Answer:96.34%

Solution for 79 is what percent of 82:

79: 82*100 =

(79*100): 82 =

7900: 82 = 96.34%

Answer:

64.72

79 percent *82 =

(79:100)*82 =

(79*82):100 =

6478:100 = 64.78

Now we have: 79 percent of 82 = 64.78

Use your knowledge about parentheses and substitution to solve the following:

1. r(s)(t) =

2. (r)(s)(t)(x)(y) =

3. (7x + 2Y) =

Answers

Answer:

3x+y

Step-by-step explanation:

Please help.
What is the circumference of the following circle?
(r = 1)
____ units
(the picture wouldn't work.)

Answers

Answer:

Step-by-step explanation:

When a circle's radius is 1—called a unit circle—its circumference is 2π.

2£ sorry if it's wronge

Explain how (-2) + 8 is equal to 6

Answers

Step-by-step explanation:

-2+8 is the same as 8-2 which equals 6.

please help i'll give brainliest

Answers

Answer:

3/5

Step-by-step explanation:


Answer:


3/5





Explanation :

a mine worker discovers an ore sample containing 500mg of radioactive material. it is discovered that the radioactive material has a half life of 1 day. find the amount of radioactive material in the sample at the beginning of the 7th day.

Answers

Answer:

The miner would have 3 1/2 of radioactive material in the sample at the beginning of the 7th day.

Step-by-step explanation:

hope this helped!

3 1/2 is radioactive hope this helps’

ANSWER THESE EASY QUESTIONS WILL GIVE BRAINLY

Answers

Answer:

i dont know im only doing it for the points

Step-by-step explanation:

i cant see the rest of the pics

The distance from Earth to the moon is 384,400 kilometers. What is this distance expressed in scientific notation?
3.844E5 kilometers
3.844 x 105 kilometers
3.844E-5 kilometers
3.844E-6 kilometers
3.844 x 106 kilometers
.
3.844E6 kilometers
3.844 x 10-6 kilometers
3.844 x 10-5 kilometers
ya ​

Answers

3.1456 that’s should be the answer of the scientific notation in short you

Answer:

B and E

Step-by-step explanation:

The diagram shows a portion of a wooden support for the roof of a house. A construction worker says that ∠BDA measures 30° more than ∠DAC. Is the worker correct? Use angle relationships and equations to justify your answer.

Answers

Answer:

no because if angle ADC is 108 angle BDA would be 72

Step-by-step explanation:

because if angle ADC is 108 angle BDA would be 72

Compare your estimates for the percentage of male university students from part A and part B. Which estimate do you think is more representative of the population? Use complete sentences in your answer and explain your reasoning.

Answers

75.76 i need more info you’re welcome

At the end of the evening, there are just enough ingredients to make 4 pancakes. How many cups of flour will be used in this batch?

(Flour is 1 1/2)

Answers

Answer:

6 I'm pretty sure.

Step-by-step explanation:

tell me if I'm wrong, sorry if I am

SOOOOOOO APPAERENTLY... everyone on here is dead because i cant get any help with a question

Answers

Answer:

your answer is c i think

Step-by-step explanation:

5+5=10+4=14+6=20+0.5=

C.) 20.5 square inches

Answer:

20.5

Hoped I helped! :)

A)
-2+x=-x+2

Answer =

Answers

Answer:

The answer is x= 2

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Hoped this helped!

Brainly, Please?

BEST ANSWER GET BRAIN LIEST a thanks 5 star review AND 10 points

Answers

It’s b and d if you can add 2

On a math test, John correctly answered 10 questions. These correct answers gave him a percent score of 40%. How many total questions were on this test? (SHOW WORK)

Answers

25 total questions, do guess and check

Answer:

25

Step-by-step explanation:

10/x = 40/100

cross multiply

1000=40

25=x

The Wagner school store is having a sale! At the sale this week, a life sized stuffed animal of Wagner’s mascot is being sold for $158.40. This is a 52% discount of the original price. What is the original price? If necessary, round to the nearest cent.

Answers

the original price was $330.00

all you have to do is 52% of the 158.40

1.Scale Factor : 4

Enlargement or Reduction? →

G(4, -4) -------------------------------→ G’

H(-6, 8) -------------------------------→ H’

J(4, 6)----------------------------------→ J’

K(-8, -12) ------------------------------→K’

Answers

The answer is k lomaodbdbbxbsjsbdbxbjzjsbbejxjdbw
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