The sum of the speed of two trains is 725.6miles per hour. If the speed of the first train is 6.4 mph faster than that of the second train find the speeds of each

Answers

Answer 1

Step-by-step explanation:

change it in meter and solve it


Related Questions

Which humanist idea was inspired by ancient Greeks and Romans?
O The government should protect the rights of citizens.
O People should have a say in how their churches are run.
O Formal education is the best way to improve people's lives.
O People can understand the world by using logic and reason to study it.

Answers

Answer:

the answer is c

Step-by-step explanation:

its the right answer lol

Answer:

(C) Formal Education is the best way to improve people's lives

Personally I thought it was (D) but now that I think about it...well yeah

There are 14 girls and 15 boys in a sixth grade math class. What is the ratio of girls to total students?​

Answers

I would say 14:15 it’s the only things that makes sense and this ratio can’t further be reduced

Help help help help help help help help help

Answers

Answer:

A'(-2,3) B'(-1,1) C'(-4,0)

Step-by-step explanation:

Translating just means adding whatever numbers to each coordinate. Point A translated from (3,0) to (-2,3) because 3-5 is -2 and 0+3 is 3.

Consider this expression x^2-(3x+y)+16

Answers

Answer:

x^2-3x-y+16?

Step-by-step explanation:

simplest form already, but can be converted into a proper polynomial.

x^2-3x-y+16

This morning, Megan and her dad had smoothies for breakfast. Megan made her smoothie with 1 cup of mango and 3 cups of strawberries. Her dad made a giant smoothie with 2 cups of mango and 6 cups of strawberries. Did the smoothies have the same ratio of mango to strawberries?

Answers

Answer:

Yes.

Step-by-step explanation:

I NEED HELP ASAP NO LINKS

Answers

Answer:

d =  y = 4.25x

correct answer i would say.

Step-by-step explanation:

Cheddar cheese cost 4.25 per pound . This means the cost of cheddar cheese is 4.25 for every pound in weight. Assuming we put a currency to the value we can say 1 pound of cheddar cheese is equals to 4.25 dollars($4.25). Mathematically, it can be represented as  

4.25 is the cost for 1 pound of Cheddar cheese

Let the cost of the equation be y as required from the question.

y = cost of the cheddar cheese

x is the weight value in pounds of the Cheddar cheese.

The equation can be best represented as

y = 4.25x

In the equation above if the amount in pounds is 3 pound . the value will be inputted for x and the cost will be gotten which is y.

hope this helped!

mark me brainliest :D

hallar una ecuacion de la parabola cuyo foco es (-2,2) y cuya directriz es = -8

Answers

The equation of the parabola whose focus is (-2,2) and whose directrix is x​= -8 is [tex](y+2)^2=-20(x+5)[/tex]

The standard formula for finding an equation of a parabola is expressed as [tex]y^2=4ax[/tex]

If the curve is shifted to the left and down, the equation becomes [tex](y-k)^2=4a(x-h)[/tex] where:

(h, k) is the vertex of the parabola

If the focus is at (-2, 2) and the directrix is at x = -8, the equivalent vertex of the parabola will be at (-5, -2) and the midpoint between the vertex and directrix is at a = -5

Substitute these values into the formula of the parabola.

[tex](y-k)^2=4a(x-h)\\(y-(-2))^2=4(-5)(x-(-5))\\(y+2)^2=-20(x+5)\\[/tex]

Hence the equation of the parabola whose focus is (-2,2) and whose directrix is x ​​= -8 is [tex](y+2)^2=-20(x+5)[/tex]

Learn more here: https://brainly.com/question/7243813

Solve 9x - 5 = 9x - 5. How many solutions does the equation have?
Show your work.

Answers

9514 1404 393

Answer:

  an infinite number

Step-by-step explanation:

Subtract 9x -5 from both sides.

  (9x -5) -(9x -5) = (9x -5) -(9x -5)

  0 = 0

This is true for all values of x. There are an infinite number of solutions.

_____

Additional comment

When you subtract one side of the equation from the other, there are three possible results:

ax +b = 0 . . . . (a≠0) one solution (x = -b/a)1 = 0 . . . . . . . . no solutions--not true for any value of the variable0 = 0 . . . . . . . infinite solutions--true for every value of the variable

unicorn a is 4 times older than unicorn b.The sum of their ages is 1.450.

Answers

Answer:

Unicorn a : 1,160, and Unicorn b : 290

Step-by-step explanation:

We can make this an equation

Unicorn a is 4x

Unicorn b is x

4x + x = 1,450

x = 290

Unicorn a : 4•290= 1160 years old

Unicorn b : is 290 years old

THE SIDES OF A TRIANGLE ARE IN THE RATIO 4:4:3. A.WHAT KIND OF TRIANGLE IS IT? B. CALCULATE THE SMALLEST ANGLE OF THE TRIANGLE TO THE NEAREST DEGREE.

Answers

Answer:

1

Step-by-step explanation:

.Evaluate the radical expression 256−−−√4. Enter your answer as a whole number, like this: 42

Answers

Answer:

254

Step-by-step explanation:

First get the square root of 4 and that is 2. Then minus it in 256 and you will get 254.

Hope it can help you lovelots

The solution to the radical expression 256-√4 will be 254.

What is a radical expression?

An expression with the radical (√) symbol is referred to as a radical expression in mathematics. Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

The given radical expression will be solved as below:-

256-√4 = 256 - 2

             = 254

Therefore, the solution to the radical expression 256-√4 will be 254.

To know more about radical expression follow

https://brainly.com/question/1601861

#SPJ5

The table below shows the number of classes offered at a fine arts school in New York.
Art: 45
Dance: 30
Music: 40
Theater: 35
What part-to-whole ratio represents the number of music classes offered at the school? ​

Answers

Answer:

40:140

Step-by-step explanation:

The explanation.is in the diagram above

Decide where the first digit of the quotient should be placed. Do not complete the division. The first digit in the quotient of 1.593 ÷ 64 is in place.

Answers

9514 1404 393

Answer:

  hundredths place

Step-by-step explanation:

When performing long division, the first digit of the quotient appears over the least significant digit of the first portion of the dividend that is greater than or equal to the divisor.

Here, when performing long division we compare ...

  64 vs 1 . . . no quotient digit

  64 vs 15 . . . no quotient digit

  64 vs 159 . . . the first quotient digit appears with the same place value as the 9 in 1.59. That is, the first quotient digit will be 0.02, 2 in the hundredths place.

Answer:

hundreths place

Step-by-step explanation:

A basket containing 150mangoes cost 450 find the selling price of an orange if it is to be sold at a profit of 5%

Answers

Answer:

The selling price cost 472.5

Step-by-step explanation:

Let's find the profit first.

To find that, let's turn 5% to decimal form.

5 % = 0.05

Then, lets multiply it to the initial price which is 450

450 * 0.05 = 22.5

So the profit costs 22.5

Now, let's add the profit to the initial cost to find the selling price

450 + 22.5 = 472.5

That's it.

3(x-4)-(2x+8) simplify

Answers

Answer:

x-20

Step-by-step explanation:

check a math app if u want to see

During second period, Janet completed a grammar worksheet.
​She got 14 questions correct and 42 questions incorrect. What percentage did Janet get correct?

Answers

Answer: 50%

Step-by-step explanation:

75%!
she has 56 questions in total and if she gets 14 correct, that’s 1/4 of the questions. therefore, she has 3/4 (75%) wrong.

Find x using the pictures below please. Will mark branliest for first reply.

Answers

Step-by-step explanation:

a) We are going g to use the definition of tangent to find x:

[tex]\tan{18°} = \dfrac{opp}{adj} = \dfrac{15}{x}[/tex]

[tex]\Rightarrow x = \dfrac{15}{\tan{18°}} = 46.2[/tex]

b) To solve this problem, we are going to use the definition of cosine:

[tex]\cos{70°} = \dfrac{adj}{hyp} = \dfrac{x}{46}[/tex]

[tex]\Rightarrow x = 46\cos{70°} = 15.7[/tex]

How many sides does a polygon have if the sum of the measures of its interior angles is 4,140?​

Answers

Answer:

25

Step-by-step explanation:

180(s-2)=4140

180s-360=4140

add 360 to both sides

180s=4500

divide both sides by 180

s=25


problem referred below

Answers

Answer:

Step-by-step explanation:

(f/g)(-4) = (-4² - 13) / (4 - (-4)) = 3/8

16. In April, Harry received his phone bill and found that he was charged $40 for 120
minutes of talking. In May, Harry received his phone bill and found that he was
charged $50 for 140 minutes of talking
Part A: Find the rate that Henry is charged for each minute of use.
a. $2 per minute
b. $1 per minute
C. $5 per minute
d. $0.50 per minute
Part B: Describe an equation in point slope form for calculating the cost (y) based on
minutes of use (x)

Answers

Step-by-step explanation:

A. Take two pairs of points:

(120, 40) and (140, 50)

Find the rate of change:

(50 - 40)/(140 - 120) = 10/20 = 0.5

This is the rate, $0.50 per minute

B. Take one pair of points (120, 40) to show the relationship between number of minutes and the cost:

y - 40 = 0.5(x - 120)

an oven has a maximum temperature of 220°c.what will it be in 2 days time​

Answers

Answer:

Well I assume 220ºC.

Step-by-step explanation:

That is the MAXIMUM temperature of the oven

What is the next number in the pattern

8.72, 8.52, 8.32 …

Answers

Answer:

3333

Step-by-step explanation:

3333

Answer:

8.12

Step-by-step explanation:

Because 0.20 is reduced after each number

8.72-0.20= 8.52

8.52-0.20=8.32

8.32-0.20=8.12

the difference between factors and factor pairs​

Answers

Answer:

Factors are often given as pairs of numbers, which multiply together to give the original number. These are called factor pairs. A square number will have one factor pair consisting of one factor multiplied by itself. This factor is called the square root of the given number.

Calculator
What is the measure of angle X?
Enter your answer as a decimal in the box. Round only your
answer to the nearest hundredth.
mZX

Answers

Answer:

X = 81.20º

Step-by-step explanation:

sinX = opp/hyp

sinX = 84/85

X = arcsin(84/85)

use calculator

X = 81.20º

Patient”s wt: 60 lbs Medication order: 0.5 mg/kg Stock medication : 10 mg/mL, How many mL will you give them?

Answers

Answer:

Needs 13.6077 mg/mL, but they have in stock only 10 mg/mL, so will be short 3.6077 mg/dL.

Step-by-step explanation:

1 lb= 0.45359 kg

60lbs converted to kg= 60lb = 27.2154 kg

Medication order 0.5 mg x kg = 0.5 mg x 27.2154 kg = 13.6077 mg/mL

In stock only 10 mg/mL= 13.6077 mg/mL - 10 mg/mL= 3.6077 mg/mL

Will be short 3.6077 mg/mL

12x-4=10x-10+30 find value of x

Answers

Answer:

12

Step-by-step explanation:

12x - 4 = 10x + 20

2x - 4 = 20

2x = 24

x = 12

Functions
Domain and Range

Answers

1)

Check the 1st picture below.

the arrows at the end of the lines are stating that the lines are continuing indefinetely, or namely to infinity, the lines go to infinity upwardly as well as sideways.

3)

Check the 2nd picture below.

the graph has a hole when x = 6 for the domain, meaning it doesn't include that point, but includes any values before it down to -5 and including -5.

Question 5 of 10
Which of the following lists of ordered pairs is a function?
A. (1,6), (2, 7), (4,9), (0,5)
B. (2,4), (0, 2), (2, -4), (5,3)
C. (0,2), (2, 3), (0, -2), (4,1)
O D. (1,2), (1, -2), (3, 2), (3, 4)

Answers

Answer:

A

Step-by-step explanation:

Because the x doesn't repeating

Hope it can help you lovelots

#LEARN WITH BRAINLY

Convert the decimal 0.92¯¯¯ to a fraction.

Answers

Answer:

23/25 when reduced to the simplest form.

Step-by-step explanation:

write down the number as a fraction of one

0.92 = 0.92/1

so we multiply both numerator and denominator by 100

Then 0.92/1 = ( 0.92x100) / ( 1x100)

= 92/100

Now reduce the numerator and denominator by GCD between in this case

GCD ( 92,100) = 4

so, 92/ 4

100/ 4

=23/25

Two trains travelling along parallel tracks in the same direction do 50 km/h and 100 km/h on average. The faster train starts 2 hours later than the slower. After how many kilometres will the faster train catch up?​

Answers

Answer:

200 km

Step-by-step explanation:

Let the faster train catches the slower one after x hours.

The distance the trains travel is same:

50(x + 2) = 100x50x + 100 = 100x50x = 100x = 2

The distance is:

50*(2 + 2) = 100*2 = 200 km
Other Questions
In "A Difficult Path," how does the author convey Mrs. Li's viewpoint that it would be nearly impossible to find a wife for her son? Mrs. Li provides her son with a private tutor as he grows up with the hope it will improve his chances of marrying. Fuding is very picky and immature, so Mrs. Li believes he will never choose a wife. Shuwan tells Lingsi about the many women Mrs. Li has rejected as not good enough to marry her son. Bisi explains that Mrs. Li purchased Lingsi as a bride for her son because she knows no one else will have him I need help.......... . Evaluate the expression for the given values.8x+2yz, where x=12, y = 4, and z = 2 Question 1(Multiple Choice Worth 1 points)(03.03 LC) Read and choose the option, with the correct words, that matches the image.A woman spreading butter on a toast l quiere el pollo. Ella prefiere la mantequilla. Ella prefiere el pollo. l quiere la mantequilla. Help meeeeeeeeeeeeeeeee Determine the equation of the circle graphed below Identify what Number property is shown for each statement 1. Commutative property of multiplication 3. Associative property of Addition4.Associative property of multiplication 5. Symmetric property 6. Reflexive property 7. Transitive property 8. Zero property of multiplication 9. multiplicative inverse10. Zero property of multiplication 11. Additive identity 12. Multiplicative identity A. 21=21 B. If k=15 and 5 = 3m. Then k = 3m C. 7+4=4+7D. 9x0=0E. 4+0=4F. (5x3)x4=5x(3x4)G. 10x3=3x10H. 19x1=19I. 8x1/2=1J. If 11 = y then y = 11 K. (6+2) + 1 = 6 + 2 + 1 L. 2+(2-)=0 which process is a plant incapablevof conducting in the dark why the athletic boyA. el chico deportistaB. la chica deportistaC. un chico deportistaD. el deportisto chico Give five (5) good traits of a good leader. Expand the function.4f(x)=(2x + 3)4 If f(x) =x+1\x-1 and f(a) = 5 then f(2a) is equal to? What would European immigrants bring with them to the United States? Type the correct answer in each box. Use numerals instead of words.A force of 25 newtons moves a box a distance of 4 meters in 5 seconds.The work done on the box is Nm, and the power is Nm/s. which health problem can result from choline toxicity? need help with my math please How were peoples lives affected by urbanization? pls answer 4th and 5th question . i do not understand Which expression is equivalent to (-x-16)-x-16?X-+16-X+16X-16 In what area of renewable energy does the U.S. lag far behind other countries?