A train travels 190 kilometers in 3.0 hours, and then 120 kilometers in 2.0 hours. What is its average speed?

Answers

Answer 1

Answer:

Given:

Train travels

Distance - 90Km

Time - 3hrs

Distance - 120Km

Time - 2hrs

Average speed - ?

190 – 120

70Km - 1Hr

=70Km/hrs


Related Questions

Studies have shown that 400 people attend a high school basketball game when the admission price is
$3.00. In the championship game, admission prices will increase. For every $0.25 increase, 20 fewer
people will attend. At what ticket price will the revenue be maximized?

Answers

Answer:

Let x=number of $0.25 increases, so the equation for revenue=price*number of tickets or people) becomes

Revenue=($3.00+$0.25x)(400-20x)

where ($3.00+$0.25x) :increase in price

and

(400-10x) : decrease in number of people

Expanding Revenue

Revenue[R]=1200-60x+100x-5x²:1200+40x-5x²

Taking the derivative of R and set it equal to 0:

R'=0+40-10x=40-10x

we have

R'=0

40-10x=0

x=40/10

x=4

So the ticket price is $3.00+$0.25*4=$4

The number of people will attend is 400-20*4=$320

At $320 ticket price will the revenue be maximized.

Step-by-step explanation:

A $320 ticket price will the revenue be maximized

The first three terms of a sequence are given. Round to the nearest thousandth (if necessary).
5, 9,13,...
5,9,13,...
\text{Find the 31st term.}
Find the 31st term.

Answers

Answer:

5 - 5000 9- 9000 13- 13000 and the 31st term is 4 :)

Answer:

Step-by-step explanation:

125

I need help u don’t know the answer please don’t make me get it wrong

Answers

Answer:

16cm

Step-by-step explanation:

The answer to your question is 45cm^2

HELPP ILL MARL YOU BRAINLy!

Answers

Answer:

See explanation.

Step-by-step explanation:

First Relation is a function because each input as exactly one output.

Calculate Ac of the Earth, assuming it moves in a circular orbit around
the Sun.
(rm-s=1.4961011 m; T=1.156107 1/s)​

Answers

jjjkkkmbjkjnnnjjj

Step-by-step explanation:

iiiiooi

Identify the slope type of the following graph.

A. negative
B. Zero
C. Undefined
D. Positive

Answers

Answer:

Negative

Step-by-step explanation:

If it is tilted in that sort of way it is negative, vice versa if it was titled the other way then it would be positive.

If it were to be un-defined/infinite then it would be parallel to the y axis

If it were to be 0 then a line would be parallel to the x axis.

Answer:

A negative

Step-by-step explanation:

I need help please really fast

Answers

Answer:

[tex] x = \boxed{2}\: and\: x = \boxed{ \frac{5}{2} } [/tex]

Step-by-step explanation:

[tex]2 {x}^{2} - 9x + 10 = 0 \\ \\ 2 {x}^{2} - 4x - 5x + 10 = 0 \\ \\ 2x(x - 2) - 5(x - 2) = 0 \\ \\ (x - 2)(2x - 5) = 0 \\ \\ x - 2 = 0 \: \: 2x - 5 = 0 \\ \\ x = \boxed{2} \: and \: x = \boxed{ \frac{5}{2} } \\ \\ [/tex]

Two friends shop for fresh fruit. Jackson buys a watermelon for $7.85 and 5 pounds of
cherries. Tim buys a pineapple for $4.15 and 4 pounds of cherries. Use the variable p to represent
the price, in dollars, per pound of cherries. Write and simplify an expression to represent how much
more Jackson spent.

Answers

Answer:

3.67 + p

Step-by-step explanation:

Jackson

7.85 + 5p

Tim

4.15 + 4p

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

How much more jackson spent

(7.82 + 5p) - (4.15 + 4p)

Group like terms

(7.82 - 4.15) + (5p - 4p)

Simplify

3.67 + p

URGENT
If f(x)=-1/8x+5 which of the following statements about g(x), the inverse of f(x), are true?
A) g(-2.125)=57 B) g(-0.5)=44 C) g(-0.375)=37 D) g(0.125)=39 E) g(0.625)=45
F) g(1.125)=40

Answers

Answer:

It's letter C

Step-by-step explanation:

What is the first step in evaluating this expression

Answers

Answer: Do the exponent

Step-by-step explanation: The reason for my answer is because of PEMDAS which stands for

Parenthesis

Exponent

Multiplication

Division

Addition

Subtraction

Really hope that this helps you out

Answer:

Its A

Step-by-step explanation:

Find the volume of the figure

Answers

8*10*14 = 1120
10*8*10 = 800
1120+800 = 1920
volume =1920 cm3

what is the value of y

Answers

840? Im not sure im sorry

Answer:

9.81

Step-by-step explanation:

Which of the x-values satisfy the following inequality? 7x<21

Answers

Answer:

x < 3

Any x less than 3

Step-by-step explanation:

7x < 21

Divide both sidesby 7

x < 3

Any x less than 3

Answer:

Answers (A) and (B)

Step-by-step explanation:

cant explain currently tell me if you would like me to explain

Please help me find the median to this table

Answers

Answer:

The median is 19.45

Step-by-step explanation:

Organize the numbers from least to greatest

16.3, 17.8, 17.8, 18.0, 18.7, 19.3, 19.6, 20.1, 20.5, 21.9, 25.2, 25.4

Find the middle of the set of numbers

19.3 and 19.6

Add 9.3 and 19.6

19.3 + 19.6=

38.9

Divide by 2

38.9/2

Which is 19.45

Hope this helps

WILL GIVE BRAINLIEST!!!

Select the graph of y = 3 sin (x + pi/4)

Answers

Answer:C

Step-by-step explanation:

just did it

The function y = 3 sin (x + pi/4) has graph B is correct.

We have given that,

y = 3 sin (x + pi/4)

We have determined the graph of the given function

We can determine the graph by using the graphing calculator.

What is the graph sine function?

The angle along the horizontal x-axis, and for each angle, we put the sine of that angle on the vertical y-axis. The result, as seen above, is a smooth curve that varies from +1 to -1.

Therefore option B is correct.

To learn more about the sine function visit:

https://brainly.com/question/10700288

#SPJ5

Solve the following word problems.
Trisha purchased 3 blouses at $32.50 each, 2 packages of 6 pairs of
socks costing $7.50 per package, and 4 pair of hosiery costing $2.19
each. Sales tax was 6.5%.
72. How much sales tax did Trisha pay?
73. What was Trisha's total invoice including tax?

Answers

Answer:

72.$7.88

73. $129.14

Step-by-step explanation:

Given the graph below, how much will it cost Kenny to order 125 T-shirts?

Answers

I think it's going to cost 300

on a coordinate plane, which point lies on the x-axis?

Answers

where is the question so i can help you

You and your friends roll a die to decide who goes first in a game.
The results of the rolls are shown in the table.

What is the range of the data?

Answers

5 is the range 6-1 is 5

Which is larger? The measure of a central angle of a circle that intercepts a 68 degree arc of the measure of an inscribed angle of a circle that intercepts a 68 degree arc. Explain

Answers

Answer:

The measure of a central angle of a circle that intercepts a 68° arc

Step-by-step explanation:

Recall the inscribed angle theorems:

Measure of central angle = measure of intercepted arc

Measure of inscribed angle = ½(measure of intercepted arc)

Therefore,

The measure of a central angle that intercepts a 68° arc = 68°

Measure of an inscribed angle of a circle that intercepts a 68° arc = ½(68°) = 34°

Therefore, the larger would be:

The measure of a central angle of a circle that intercepts a 68° arc

I’LL MARK AS BRAINLIEST!!! Plz no links

Answers

Out of 15 beings, 6 of them preferred lirn juice. 6/15 can be simplified to 2/5.
2/5 is ALSO 4/10. Four tenths would be 0.4, and 0.4 is 40%

Answer:
40% of them preferred lirn juice.

PLEASE ANSWER ASAP !! IF YOU ARE AN EXPERT AT MATH

Answers

Mean: 12.8 Median: 13

someone please help meee!!!!!

Answers

Answer:

B AND D

Step-by-step explanation:

The last one
as a is displayed in all variables of the group. The other options, a is lacking in at least one variable.

Subash is saving to buy a video game that costs $72. He earns $12 per week for doing the dishes and spends $3 on ice-cream. Which equation can be used to find how many weeks it will take him to save enough money for the video game?

Answers

Answer:

Correct answer is 'A'

Step-by-step explanation:

so money he save per week = $12 - $3 = $9

Now,

To earn 9$ it takes one week or it can be represented as:

$9 = 1 week

So,

$1 = 1/9 week

$72 = (1/9*$72)weeks

$72 = 8 weeks

therefore it will take 8 weeks to save enough money for the video game

Answer:

A. 14

Step-by-step explanation:

a) Create an example of a trinomial that has a degree of 4:

Answers

Answer:

4x^4 + 16x^3 + 182x^2 + x + 87

Step-by-step explanation:

1 1/4 in the whole number?

Answers

Answer:

2.75

Step-by-step explanation:

Answer would be 1. You have to round your answer for it to be a whole number. Hope this helps!

What are the coordinates of point Q?

Answers

Answer: the x coordinate is 0 and y is 3 for point q.

Find the length DE.
Helpppp!!!!!

Answers

Answer:

the answer is 13 .8

Step-by-step explanation:

this is a trigonometry question so this would be tan of 51 =17 ÷ × so × =13.8

Total earnings S depends on the number t of hours worked. You earn $6 per hour. How much do you earn for working 10 hours?


a. $60

b. $120

c. $30

d. $90

Answers

The correct answer is A $60
A.60 is the answer to the question

Bamboo plants grow rapidly. A bamboo plant is 140 inches tall. Tomorrow it will be 154 inches tall, the next day it will be 168 inches tall, and on the next day it will be 182 inches tall. Write a rule to represent the height of the bamboo plant as an arithmetic sequence. How tall will the plant be in 16 days?

Answers

Answer:

350 inches

Step-by-step explanation:

aₙ = a₀ + d(n-1)

d = common difference

a(16 days) = 140 + 14(15)

= 140 + 210

= 350

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