Mathematics Middle School

How long does it take a train traveling at a constant rate of 50 miles per hour to
travel 350 miles?

5 hours
300 hours
7 hours
175 hours

Answers

Answer 1
it would be 7 hours so the top person is correct

Related Questions

some please help! lot of points!

Answers

Answer:

30+0.05t < 60

Step-by-step explanation:

0.05 is the rate, 30 is the initial, 60 is the maximum (not cincluding it though, since it says under 60)

Need help with this one

Answers

Answer: No, the graph does not show a proportional relationship.

Step-by-step explanation:

Proportional relationships have to start at zero, and have a straight line.

Even though the graph has a straight line, it does not start at zero and therefore is not proportional.

Can someone plzzz help Ik I’m need!!!

Answers

270 because 120/24 = 5 5x54 = 270
I agree with the first person

Please help I need text evidence so please include that in your response I will give you brainlest if you have. Good detailed answer I’m sorry if this is a lot to ask for the story is freak the mighty btw

Answers

Answer:

cite,evidence,cite,evidence, summary it basically means answer the question give evidence from the story explain do it again and then sum up your writing, i hope this is right.

Step-by-step explanation:

Khan Academy PLEASE SOMEONE HELP FASTTT!!!!

Answers

angle a is 132 degrees

5x-18=3x+42
2x-18=42
2x=60
x=30

then plug 30 in the equation for angle a

5*30-18
150-18
132
132 degrees. hope you do good

HELP! WILL MARK BRAINLIEST IF CORRECT!

Answers

Answer:

72%

Step-by-step explanation:

18/25 = 0.72

0.72 x 100 = 72

Answer:

72%

Step-by-step explanation:

Step 1 we make the assumption that 25 is 100% since it is our output value

Step 2 we next represent the value we seek with x

Step 3 from step 1, follows that 100%=25

Step 4 in the same vein, x%=18

Step 5 this gives us a pair of simple equations: 100% = 25(1)

X%= 18(2)

Step 7: taking inverse of both sides yields

X%\100% = 18/25

—> = 72%

Therefore, 18 is 72% of 25

What is the value of the expression below when c=5 and d=4?

a
888
b
138
c
4,179

Answers

The answer is 138 (B)

Answer:

Step-by-step explanation:

B) 138

HELP 6th GRADE MATH!!The ratio of the number of adults to the number of the children at the restaurant is 3:7. Identify the choices below that represent the equivalent ratio.
Choices:
A: 6:14
B: 8:12
C: 15:35
D:21:9
E: 30:70

Answers

Answer:

A and E

Step-by-step explanation:

(3*2)/(7*2)=6/14

(3*10)/(7*10)= 30/70

A and E
A is proportional by a scale factor of two and E is proportional by a scale factor of 10

hi every one be safe and have a great rest of your week plz pass this on and add 100 points to it to make some ones day :) :) :) :)

Answers

Answer:

okay :)

Step-by-step explanation:

Answer:

Ok!

Step-by-step explanation:

See picture for question

Answers

awser  :5.4n 5 aka #3

------------------------------------------

Answer:

5.4n

Step-by-step explanation:

4n + 3.5 + 2.1n

4n+ 3.5 = 7.5n

7.5n - -2.1= 5.4n

QUICK!! TEN POINTS!! BRAINLIEST FOR WHOEVER GETS IT RIGHT!!


What are the coordinates of point S?

(-3/41/2)

(-1/2,3/4)

(1/2,3/4)

(3/4,1/2)

Answers

D...................
(-3/4, 1/2). You are going to the left(negative) 3/4 and up(positive) 1/2

Determine if the statement below is always true, sometimes true, or never true.

When x is a nonzero integer, the quantity −3x will be negative.

Answers

I am pretty sure it is always true
Sometimes true! Nonzero can be all positive and all negative! -3(-3)=9 this is an example of why it’s false|| -3(4)=-12 is an example if why it’s true||

Write the expression in standard form: 4(2)+7(4)+(35).

Answers

Answer

71

Step-by-step explanation:

4(2)+7(4)+(35)

4×2+7×4×(35)

8+28+(35)

36+(35)

36+1×35

36+35

Help please I added the number line.

Answers

The answer is H because if you use a calculator and do 5.75 - 3.50 you would get 2.25 then count out how many 0.25 would make 2.25

Answer:H

Step-by-step explanation:

Because 0.25 x 9 will give you 2.25. Then add that to the original number; $3.50 + $2.25 = $5.75. Hope this helps :)  

Lily likes to collect records. Last year she had 10 records in her collection. Now she has 13 records. What is the percent increase of her collection?

Answers

Answer:

30%

Step-by-step explanation:

We know if we put the number of records in the end ÷ the number of records previously, we can get the percentage change.

13/10 = 1.3

1.3 - 1 (Because we want to find the increase, not the amount of percentage this is to that)

0.3 = 3/10 = 30%

30 percent your welcomee

The value of a share of stock decreases in value at a rate of $1.40 per hour during the first 3.5 hours of trading. Enter and solve an equation to find the decrease in the value of the share of stock during that time. Let x represent the decrease in value of the share of stock during 3.5 hours.


The equation to find the decrease in the value of the share of stock is x / _____ = _______


The decrease in value of the share of stock during 3.5 hours was $________​

Answers

Answer:

x/3.5h = -$1.4

So, x = -$1.4 * 3.5h

= -$4.9

Step-by-step explanation:

Since your losing $1.4 every hour, the 1.4 is supposed to negative.

Also, since your losing that amount of money for 3.5 hours, we are trying to find the total of how much money is lost in the 3.5 hours. To do this, we have to do x/3.5h = -$1.4. But since you can't do x/3.5, we have to do inverse operation. When you divide 3.5 hours to the other side of the equation it becomes multiplication. So you do -$1.4 times 3.5 hours

and get  -$4.9.

5 The smallest angle of a triangle, in degrees, is p.
The second angle is 4 times the smallest angle.
The third angle is 5 times the smallest angle.
a Write an equation for the angles in the triangle in terms of p.

b Find the size of the largest angle in the triangle.

b in paticular

Answers

Answer: b = 90

Step-by-step explanation:

Full triangle is 180

5 + 4 = 9 + 1 (the smallest angle)

180 ÷ 10 = 18

First and smallest angle is 18

p= 18

Second angle is 72

18 × 4 = 72

Thrid angle is 90

18 × 5 = 90

b = 90

18 + 72 = 90 + 90 = 180

how is water vapor different from other gases that make up air?

y'all better hurry up, I don't got no time for this TvT

Answers

Answer: It is an inert gas, which means that it does not react with other chemicals. Water is cycled through all of Earth's systems in each of its three phases: solid, liquid, or gas. Water vapor in the atmosphere is a greenhouse gas due to its heat-trapping ability. Carbon dioxide naturally composes

Step-by-step explanation:

Step-by-step explanation:

water vapour is made up of water droplets so it is different from other gases

Answer the problem please

Answers

Answer:

this is not middle school math no way

Step-by-step explanation:

I really need an answer its multiple choice

Answers

Answer:

a

Step-by-step explanation:

just plug in

pleasee help ill give brainliest

Answers

B or Always increasing

I want Mark best answer

Answers

Answer: 25 songs

Step-by-step explanation:

Cuz 1 song = 0.99

And total = 24.75

So if we divide the total by the per song cost = how many songs she downloaded

24.75/ .99 = 25


The answer is 25

Explanation 24.75/.99 is 25

State whether the number is a solution to the giving inequality.


n>9/16;7/12

Answers

yes it is because you find the LCM which is 48 so then you convert those 2 fractions to have a denominator of 48 so 7/12 becomes 28/48. next you change 9/16 which becomes 27/48. now your equation would be 28/48>27/28

Which is an equivalent expression of:
6(3x + 5) - 11
A.18x - 5
B.18x + 10
C.18x - 11
D.18x + 19

Answers

................The answer is B

Karen had to spend $24 on seven packs of markers for a workshop. After buying them, she had $10. How much did each pack of markers cost?

Answers

Answer:

$2

Step-by-step explanation:

24-10=14/7=2

hope this helppppppssss

please help ill give brainliest

Answers

Answer:

divide by -3 and reverse it

Step-by-step explanation:

Trust me I got u fam

Answer:

divide by -3 and reverse

Which number in the following equation represents the coefficient?



7y + 2 = 23

Answers

Answer:

7

Step-by-step explanation:

The coefficient is the number used to multiply a variable.

Y is the variable and 7 is the coefficient.

Answer

y=3

Step-by-step explanation:

21/7=3

7 times 3 = 21

21 +2=3

Which of the equations is graphed below?

A. y=-2x + (1)/(2)
B. y = -2x – 1
C. y=-2x-(1)/(2)
D. y = -2x + 1

Answers

The answer is B I think
The answer is D, y=-2x+1

slope 2/-1 (or -2), y intercept is +1

72 + (13- 4) + 5 x 23
72 +
+5x2²
72 + 9 +5 %
+ 5 X 8
8+

Answers

Answer:

196

Step-by-step explanation:

do parantheses first, then multiplication add the answer from parantheses and multiplication and lastly add 72

Nico and Lorena used different methods to determine the product of three fractions.

Nico’s Method
Lorena’s Method
(2) (one-sixth) (Negative four-fifths) = (StartFraction 2 over 1 EndFraction) (one-sixth) (negative four-fifths) = StartFraction (2) (1) (negative 4) over (1) (6) (5) EndFraction = Negative StartFraction 8 over 30 EndFraction = Negative StartFraction 4 over 15 EndFraction
(2) (one-sixth) (Negative four-fifths) = (StartFraction 2 over 1 EndFraction) (one-sixth) (negative four-fifths) = StartFraction (2) (1) (negative 4) over (1) (6) (5) EndFraction = Negative StartFraction 8 over Negative 30 EndFraction = StartFraction 4 over 15 EndFraction

Whose solution is correct and why?
Nico is correct because he knew that Negative four-fifths = StartFraction negative 4 over negative 5 EndFraction.
Nico is correct because he knew that Negative four-fifths = StartFraction negative 4 over 5 EndFraction.
Lorena is correct because she knew that Negative four-fifths = StartFraction negative 4 over 5 EndFraction
Lorena is correct because she knew that Negative four-fifths = StartFraction negative 4 over negative 5 EndFraction

Answers

Answer:

Nico is correct because he knew that -4/5 is not equal to -4/-5.

-4/-5 is actually equal to 4/5.

Step-by-step explanation:

Answer:

Nico is correct.

Step-by-step explanation:

-4/5 doesn't equal to -4 over 5. Eh- i tried- whatevs-

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