Answer: 28.765957 km/hour
This value is approximate. Round it however you need to.
==============================================
Explanation:
Let's convert 75 minutes to hours.
75 min = (75 min)*(1 hr/60 min) = (75/60) hr = 1.25 hr
So Jaden's train takes 1.25 hours to travel 130 km. Her train's speed is
speed = distance/time
speed = (130 km)/(1.25 hrs)
speed = (130/1.25) km per hour
speed = 104 km per hour
Let A = 104, so we can use it later.
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Dani's train leaves at 15:15 and arrives at 18:30. We need to calculate the duration of elapsed time here.
From 15:15 to 16:00, this is a difference of 00:45, aka 45 minutes or 45/60 = 3/4 = 0.75 hours.From 16:00 to 18:00, this is a time gap of 2 hours. From 18:00 to 18:30, this is a gap of 30/60 = 0.5 hoursOverall, the length of time from 15:15 to 18:30 is 0.75+2+0.5 = 3.25 hours.
Dani's train travels 312 km in 3.25 hours.
That train's speed is...
speed = distance/time
speed = (312 km)/(3.25 hours)
speed = (312/2.35) km per hour
speed = 132.765957 km per hour, approximately
Let B = 132.765957 so we can use it later.
------------------------------------
Lastly, we subtract the values of A and B to get the final answer
C = difference in train speeds.
C = B - A
C = 132.765957 - 104
C = 28.765957 km/hour
This value is approximate. This says that Dani's train is approximately 28.765957 km/hour faster compared to Jaden's train.
For the data set 4, 5, 10, 11, 15, the mean, x, is 9. What is the standard deviation?
Answer: A
Step-by-step explanation:
4.1
Please help!!! Will give brainliest!!!
Answer:
a = 2
b = 1
c = -6
Step-by-step explanation:
Distribute and then combine like-terms.
Lin runs 5 laps around a track in 8 minutes.
a. How many minutes does it take to run 1 lap?
b.
How many laps did Lin run in 1 minute?
Please hurry
Answer:
1.2 minutes, hope this helps (owo)/
Step-by-step explanation:
They got the 1.2 minutes by taking the total number of minutes (6) and dividing them by the number of laps run (5). So 6 divided by 5 gives you the 1.2.
Work out volume of this sphere leave your answer in terms of pi
Answer:
36pi
Step-by-step explanation:
Volume formula = 4/3 × pi × r^3
What is the equation for proportions? What does each letter represent?
Answer:
Ratios and Proportions - Proportions - In Depth. A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d. The following proportion is read as "twenty is to twenty-five as four is to five."
Step-by-step explanation:
look at the attachment.
8. Willow earns $10 per hour working part-time at a diner. Write and solve an inequality to determine
the number of hours, h, Willow must work in a week in order to earn more than $200. Then interpret
the solution.
Willow must work
hours this week.
Answer:
10h=200
h=20
Step-by-step explanation:
10h=200
10h/10=200/10
h=20
Multiply the number of hours worked (h) by earnings per hour $10 to get
10h
This needs to be more than ( Greater than) 200
Now you have 10h > 200
Solve for h by dividing both sides by 10:
h >20
This means she needs to work more than 20 hours this week.
help pls I really need it
Identify each point as a solution of the system or not a solution of the system.
7 6 5 3 2
23
4 5
6
7
-1
5
(0,4)
(-2,4)
(0,5)
Answer:
I think it is ether-1 or o,5
Answer:
Did you got the answers for this whole I need them please
What is the slope of this please help as quick as possible :)
Answer:
-.5 or -1/2
Step-by-step explanation:
rise over run
you rise 2 and run left 4
the slope is negative
5 + 11y + 9 what is the answer
Answer: 11y+14
Step-by-step explanation:
The function f(t) represents the cost to connect to the Internet at an online gaming store. It is a function of t, the time
in minutes spent on the Internet.
O
$0 0<30
f(t) = $5 30 < 1 S 90
$ 10 > 90
Which statement is true about the Internet connection cost?
It costs $5 per hour to connect to the Internet at the gaming store.
The first half hour is free, and then it costs $5 per minute to connect to the Internet.
It costs $10 for each 90 minutes spent connected to the Internet at the gaming store.
Any amount of time over an hour and a half would cost $10.
Save and Exit
Next
Submit
Mark this and return
no
Answer:the answer is D Any amount of time over an hour and a half would cost $10
Step-by-step explanation:
Can someone pls help me with this??
Answer:
[tex] - 0.75k + - 2[/tex]
Step-by-step explanation:
[tex]0.25 k- 1k[/tex]
[tex]1.5 - 3.5[/tex]
first you will combined 0.25 K - k and you will get -0.75
then combine 1.5-3.5 and get -2
10 x 1/10 brainliest if answer not 1
Answer:
10/10
Step-by-step explanation:
Please also explain how you did it! Thank you
Answer:
66 degrees
Step-by-step explanation:
360 degrees in a circle
102 and 144 make up the circumference of LPN
LMN however is still to be determined... which is 360-(102+144) = 114
Therefore, LMN = 114 degrees. Using a thereom (I forget which one), the corresponding angle to LMN is LPN.
To find angle LPN (180-114) = 66
i giveeeeeeeeeeeeeeee brainlilstttt
Answer:
(x, y ) → (x + 10, y + 10 )
Step-by-step explanation:
Consider the coordinates of C and C'
C(- 7, - 1 ) and C'(3, 9 )
The translation in the x- direction is
- 7 → 3 = 3 - (- 7) = 3 + 7 = 10
The translation in the y- direction is
- 1 → 9 = 9 - (- 1) = 9 + 1 = 10
Then translation rule is
(x, y ) → (x + 10, y + 10 )
Simplify 18.1 - 1.1(7.4 - 9.6 + 0.5).
TWENTY POINTS!!! PLEASE HELP!!!
Find Greatest Common Factor:
33x^5y^7-99x^6y^9-66x^5y^8
my teacher would like you to solve this using fraction ex:(345/x=727/2355) (just a heads up!!) please help :)
1 When y= 35, x = 22. If the value of y
varies directly with x, what is the value of y
when the value of x is 3 ?
A 113 C 227
B 26 13 D 45 1
Answer:
Step-by-step explanation:
22/35
Solve the system by substitution.
3r + y = 5
5x – 4y = -3
The solution is?
Expand.
(x^2)(x^2-6)
Answer:
This can be expanded to x⁴ - 6x²
Step-by-step explanation:
[tex]x^2(x^2 - 6)\\= x^4 - 6x^2[/tex]
Answer:
If by expanding you mean solving, you answer is x^4−6x²
Step-by-step explanation:
x²(x²-6)
(x²)(x²-6)
(x²)(x²)+(x²)(-6)
x^4-6x²
If a 200-mile trip takes 4 hours to com- plete, the average speed is
A. 30 miles per hour.
B. 40 miles per hour.
C. 50 miles per hour.
D. 60 miles per hour.
Answer:
Step-by-step explanation:
if you need 4 h to complete a trip of 200 miles
200/4=50 miles/hour
Only valid answers get points, first correct answer gets brainliest
3n - 12 = 5n - 2
how many solutions?
$200 at 6% for 10 years find the interest and find the balance of the account
Answer:
358
Stefffffffffffffffffffffffffffp-by-step explanation:
19 ≥ 3f+1 ≥5 pls help
Answer:
Hi...u should do like this
18>3f>4
6>f>4/3
The function h(t)= -16t2+ 8t+ 4 models the height of a ball over time as it bounces off the edge of a table.
Answer:
try 1/4
Step-by-step explanation:
Which decimal is equivalent to 7.5%? A 7.5 B 0.75 C 0.705 D 0.075
Answer:
D.) 0.075
Step-by-step explanation:
CUCU
3) Which function represents the sequence? 45, 40, 35, 30, 25,-
OA) f(x) = 45x -5
OB) f(x) = 45 - 5(x - 1)
OC) f(x) = 5 - 45(x - 1)
OD) f(x) = 5x + 45
Save
Not Graded
AEDc0
9:28 AM
116/2021
1
Answer:
B
Step-by-step explanation:
well, the sequence are in the form
[tex]a1, a2, a3, a4, a5, ... , an[/tex]
a1 = first term = 45
you can plug 1 to any of the option
and ended with B the only function that satisfies what we need
1. What is the 15th partial sum of the geometric sequence {262,144; 32,768; 4,096; 512; ..)? Round to the nearest whole number, if needed.
Help plz:)))I’ll mark u Brainliest
Answer:
I think yes because it doesn't really matter how long the sides are as long as its 180°
Step-by-step explanation:
I actually hope this is right and that it helped!
Answer:
yes because it doesn't really matter how long the sides are as long as its 180°
Step-by-step explanation: