Mathematics Middle School

If train A and train B, on a side-by-side roller coaster track, both leave the starting point at 9:00 A.M., at what time will they next leave the starting point together? pls can anyone answer this???


train A:every 8 minutes

train B: every 6 minutes

Answers

Answer 1

Answer:

answer 2

Step-by-step explanation:

Answer 2

Answer:

At 9:24 a.m.

Step-by-step explanation: Because if train A arrives every 8 minutes and train B arrives every 6 minutes then every 4 stops train B will meet A and every 3 stops they will see each other.

Related Questions

Write the volume of a cylinder with a base radius of 3 m and height of 8 m in terms of pi.

Answers

Answer:

Volume=

Step-by-step explanation:

The volume in terms of pi is 226.195 :)

The pi would be 226.195:)

The circumference of a circle is 11pi inches, What is the area in inches of the circle express in terms of pi. Round to the nearest thousandths. 3.14

Answers

The circumference of a circle having radius r is 2πr. Hence, by what is given, 2πr=11π⇒r=112. :. The Area of the circle=πr2=π(112)2=30.25π sq.

can any one help me with this?

Answers

Answer: to #3 is no it is not a function

Step-by-step explanation:

10. x= -1

3x + 7 =11x +15
-3x -3x

7=8x + 15
-15. -15

-8=8x
—. —
8. 8

X=-1

-5 1/2 + 6 3/4 + (-4 1/4) =

Answers

Answer: -3  

I think its -3 you can pick it if you want

Jada had a monthly budget for her cell phone bill. Last month she spent 120% of her budget, and the bill was $60. What is Jadas monthly budget? What's the answer to this question?

Answers

Answer:

$50

Step-by-step explanation:

Answer: If $60 is the budget then it is 100%.

Hope this helps!

-8n - 7 (n+5) math homework only confident/right answers please

Answers

Answer:

-15n-35 is the answer

Step-by-step explanation:

For another question, Nancy needs her to mark the numbers 1 1/3 and -1 1/3 on the number line. How many spaces does she need between 1 and 2, and between -1 and -2, so that she can mark 1 1/3 and -1 1/3 ?
PLS! HELP!!

Answers

9514 1404 393

Answer:

  3 each

Step-by-step explanation:

Nancy is planning to mark numbers that have fractions with a denominator of 3, so she needs 3 spaces between the integer values.

__

The denominator tells you the number of equal parts that each unit is divided into.

A runner charted how long it took her to run certain distances here is the information she gathered

Answers

Answer:

The answer would be 9.

Step-by-step explanation:

It is going up by 8 each time, so you just have to divide 72 by 8. You will then receive your answer.

The Answer is 9 because 9 times 8 equals 72
9 x 8 = 72

Pls help me and thank you

Answers

Answer:

5 im pretty sure

Step-by-step explanation:


The correct answer is 5.

help me please, picture provided

Answers

Im sorry but can you scroll a bit lower cause i can’t see the numbers of the hourly rate

Answer:

$1.50/hour

Step-by-step explanation:

6 ($$) divided by 4 (hours) is 1.5 dollars/hour.

Kim planted sunflower seeds in a flower patch. The tallest sunflower grew 2.65 meters tall. The height of the shortest sunflower was 0.34 meters less than the tallest sunflower. What was the height, in meters, of the shortest sunflower?

Answers

Answer:

Its 2.31 meters

Estimate how many times larger 6.1×10^7 is than 2.1×10^−4. PLEASE WILL GIVE BRAINLIEST!!!!!!

Answers

Answer:

around 300000000000

Step-by-step explanation:

6.1 is about 6 and 2.1 is about 2.

(6*10^7)/(2*10^-4)

is 3*10^(7+4)=3 followed by 11 zeroes.  Please let me know any feedback you have for me

The exponents are solved and the number of times larger is n = 290,476,190,476.19

What is Exponential Form?

The exponential form is an easier way of writing repeated multiplication involving base and exponents. It has a base and a power

The exponential form of a number is a way of representing a number using exponents, where the base is typically a number greater than 1.

It is often used in mathematics and science to represent large or small numbers more efficiently. It can also be used to simplify certain mathematical operations, such as multiplication and division, by using the properties of exponents.

Given data ,

Let the first number be p = 6.1 x 10⁷

Let the second number be q = 2.1 x 10⁻⁴

And , the exponents are divided and the value of n is

To estimate how many times larger 6.1 x 10⁷ is than 2.1 x 10⁻⁴, we can divide the two numbers and then round the result to the nearest whole number.

n = 6.1 x 10⁷ / 2.1 x 10⁻⁴ ≈ 290,476,190,476.19

Rounding this to the nearest whole number gives us:

n ≈ 290,476,190,476

Hence , we can estimate that 6.1 x 10⁷ is approximately 290,476,190,476 times larger than 2.1 x 10⁻⁴

To learn more about exponential form click :

https://brainly.com/question/29337692

#SPJ2

1. The school office is now selling neon mechanical pencils. If the office pays $10.80 for a dozen pencils, how much should be charged to make a profit of 75 cents each?
2. Several cases of 16-ounce bottles of water were purchased for $252.00. If one case costs $7.00, how many cases were purchased?
3. Okolona College ordered jerseys to sell at the homecoming game. The college paid $9.25 each for 225 jerseys. Each jersey was sold for $15.75. What was the percent of markup for each jersey? How much profit was made if all of the jerseys were sold?
4. A truck traveled 654 miles on a long distance run. If the truck averaged 55 mph, how many hours did it take to reach the truck's destination? (Round to the nearest hour)
5. Della Riley borrowed $2400 for 6 months to invest in a business venture. If she agreed to pay 8% interest annually, how much will she be repaying?
6. It takes Dan an average of 45 minutes each evening to do his chemistry homework. Dan calculates that he worked a total of 3 hours on chemistry last week. Assuming that Dan worked his average time per evening consistently, how many evenings did Dan work?
7. Jon's car averages 20 mpg in town and 28 mpg on the road. What is the percent of decrease between the two driving conditions?

Answers

Answer:

1. Each pencil cost .90 cents each. So if they want to make a profit of 75 cents each they will get $9 for a dozen pencils. They must charge 75 cents.

2.  Several means 4 but in this case, it means 36. When you divide 252 by 7 you get 36. Because each case is $7 and the total is 252.

3. The percent markup for each jersey was around 65%. They almost doubled the price by 6.50. They would make $3543.75 if they sold all the jerseys at the homecoming game.

4. The truck took 12 hours to reach its destination.

5. She would be repaying $ 1,152.00 in one year.

I hope this helps. I did not do 6 and 7 because I hope these help you figure those out. : )

Whoever can answer all these get brainliest please! this is due today!!

Answers

#1 is -32
#2 is -11
#3 is -5
#4 is 6

Hi, could you please answer my question...I will give brainliest!! Please have the correct answer...


A newspaper started an online version of its paper 14 years ago. In a recent presentation to stockholders, the lead marketing executive states that the revenues for online ads have more than doubled that of the revenues for printed ads since starting the online version of the paper. Use the graph below to justify the lead executive’s statement and to determine the approximate year that the two ad revenues were equal.

Answers

Answer:

The graph clearly shows the change in revenue streams where they were equal In year 7 around $2 million

Step-by-step explanation:

can someone help me out? :P (serious answers only.)

Answers

Answer:

The answer is C 841.62.

I actually got 842.11, but C is the closest answer so that's gonna be the one.

Step-by-step explanation:

explanation to top answer^^^^^ first fine the area of the triangle. you have the diameter, 35, so it should be easy to figure it out. all you have to do next is find the area of the triangle, and then subtract the area of the triangle from the area of the circle!

pleaseee just helpp i keep putting this question up and it gets deleted for no reasonnnnnnnn!! please hurry

What is the volume of a cone with a radius of 5 inches and a height of 12 inches? (Use 3.14 for .)

942 cubic inches
314 cubic inches
376.8 cubic inches
125.6 cubic inches

Answers

The correct answer is B. 314. Cubic inches

Emily loves baking cookies. She baked some cookies to bring in for her class. Her dog jumped on the counter and ate 6% of the cookies. If he ate 12 cookies, how many cookies did Emily bake?

Answers

Answer:

12.06

Step-by-step explanation:

If emily's dog ate 6% of the cookies and theres 12 left

You need to add 6% and 12

That leaves you with a sum of 12.06

Answer:

120!

Step-by-step explanation lol i used a thing callled ggoogle and calculator!

Malik collects rare stamps and has a total of 96 stamps. He has 24 more domestic stamps than foreign stamps. Let d represent the number of domestic stamps and let f represent the number of foreign stamps.

This system of equations models the given information for both stamp types.

d – f = 24

d + f = 96

Solve the system of equations.

How many foreign stamps does Malik have?

number of foreign stamps
How many domestic stamps does Malik have?

number of domestic stamps

Answers

Answer:

Domestic Stamps: 60

Foreign Stamps: 36

Step-by-step explanation:

96 - 24 = 72

72 ÷ 2 = 36

36 + 24 = 60

d - f = 24

60 - 36 = 24

24 = 24

d + f = 96

60 + 36 = 96

96 = 96

Answer: d=60 and f=36
There are 60 domestic stamps and 36 foreign stamps.

Use the elimination method to solve


d-f=24
-d+f=96
_______

Line them up and them subtract


-2f=-72

The d cancel out

Isolate f by dividing both sides by -2

f=36


Replace f with 36 in either equation and then solves


d-(36)=24

Isolate d by adding both sides by 36

d=60


I really need help!!


Complete the table for n= -1 and n= 7. The answers must be in order for f(n)

Answers

n= -1

2(-1)-1

F(n)= -3

n=7

2(7)-1

F(n)= 13

Answer:

See below.

Step-by-step explanation:

n = -1,   2n - 1 =  2(-1) - 1,  f(n) = -3

n = 7,    2n - 1 = 2(7) - 1,    f(n) = 13.

rewrite the numbers in order from least
to greatest. -45/10, 3/1000, -0.005, 0.34

Answers

Answer:

-45/10  -  -0.005   - 3/1000   -  0.34

Step-by-step explanation:

-45/10  -  -0.005   - 3/1000   -  0.34

Can anyone help me on these questions
1) The bowling club at your school had a car wash last week. They washed 72 cars in 6. 5 hours. About how many cars did they wash per hour?

2) You bought two 2.5 pound bags of shrimp for $34.99. What is the unit rate of the shrimp in dollars per pound? Find the unit rate to the nearest dollar.

Answers

1) they would wash about 11 cars per hour 72/6.5
2) 13.99 per 1/2 pound 34.99/2.5
They washed 11 cars jn an hour . U do 72 divided by 6.5 to find the unit rate . And for the shrimp you do 34.99 divided by 5 and it equals 6.998 so you round to 7 . Therefore shrimp costs 7 dollars per pound

Predict the number of cases of the flu that would occur if 300 students receive the flu vaccine

Answers

Gimme brainlist for good luck :)
Answer: Y=5



You find this by putting the number of vaccinated 300 in the x place multiplying -1/4 by 300 to get -75 then you add 80 to get 5 so y=5

Aubrey says that the product of 104 and 10–2 is 10–8. Is she correct? If not, explain why.
A. Yes, she is correct.
B. No, the exponent should be positive 8.
C. No, she multiplied the exponents instead of adding them.
D. No, she multiplied the exponents instead of subtracting them.

Answers

Answer:

C

Step-by-step explanation:

No, she multiplied the exponents instead of adding them.

I’m pretty sure the answer is c

Which one is proportional ???????????

Answers

Answer:

b

Step-by-step explanation:

The answer is B
Sorry if I was wrong

Ellen has 3/4 jar of jelly, after she makes sandwhichs, she has 2/5 jar of jelly left, how much jelly did she use?

Answers

Answer: 7/20

Step-by-step explanation:

I looked it up

To get this answer you need to find the common denominator of both fractions. So here is the workout for the answer. Hope it helps!

Question 3 (10 points)

Answers

Answer:

25.15

Step-by-step explanation:

Write an expression for the perimeter of the triangle shown below:

A triangle is shown with side lengths labeled 2.3x plus 14, 2x, and negative 0.2x plus 15.

4.1x + 29
4.1x − 29
4.5x + 29
4.5x − 29

Answers

Answer:

4.1x + 29

Step-by-step explanation:

1. Combine like terms (2.3x + 2x= 4.3x - 0.2x = 4.1x)

2. add the 14 + 15 = 2

That gives you the equation 4.1x + 29

I also took the test so I know I it's right ;)

help me the questions are the images

Answers

Answer:

starting from 1, going horizontally
1. 4.5
2. 5.4
3. 2.25
4. 24.96
5. 17.35
6. 12.48
7. 18.28
8. 7.38
9. 56.7
10. 0.06
11. 36.48
12. 218.4
13. 16.028
14. 9.39
15. 40.16
16. 37.86
17. 40.05
18. 30.275
19. 1.524
20. 0.64

Step-by-step explanation:

Please help me i would really appreciate it

Answers

Answer:

1/2 (a-8)

Step-by-step explanation:

I got the one half because you have to get a by itself so you divide it by 1/2. I got 8 by dividing 4 by 1/2

Answer: 1/2 (a-8)

Step-by-step explanation: yes

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