A conductor is mapping a trip and records the distance the train travels over certain time intervals. The train travels at a constant speed. What is its speed?
Answers
Answer:
Speed = 25miles per hour
Step-by-step explanation:
Represent the time with x and the distance with y
So, from the attachment; we have the following details:
[tex](x_1,y_1) = (0.5,12.5)[/tex]
[tex](x_2,y_2) = (1,25)[/tex]
[tex](x_3,y_3) = (1.5,37.5)[/tex]
Required
Determine the constant speed
Because the train travelled at a constant speed, the speed can be calculated using:
[tex]Speed = \frac{y_3}{x_3}=\frac{y_2}{x_2}=\frac{y_1}{x_1}[/tex]
[tex]Speed = \frac{12.5}{0.5}=\frac{25}{1}=\frac{37.5}{1.5}[/tex]
[tex]Speed = 25=25=25[/tex]
Notice that the result of each division is the same.
Hence, the constant speed is:
Speed = 25miles per hour
Related Questions
PLEASE HELP ME WITH THIS PROBLEM I REALLY NEED HELP WITH IT PLEASE!!!!!!!!
Answers
Answer:
the numbers at the bottom go on the side and the ones on the top graph them on the bottom numbers
Step-by-step explanation:
How much interest is earned on $300 at 6% for six years?
Answers
Answer:
125
Step-by-step explanation:
Answer:
about 125
Step-by-step explanation:
you would get 425-300 get you 125
Can somebody please help?
Answers
Answer:
A. Juan wins the race
B. At about 7 minutes J(t )= A(t)
C. 2 minutes
Step-by-step explanation:
A. Juan wins the race. This is because she covers the distance in a shorter time interval than Antonio
B. At about 7 minutes J(t )= A(t). to get this, just look at the point that the two curves intersect on the graph, and trace it down to the time axis to read off the time.
C. J(t) is greater than A(t) with about 2 minutes. To get this, we just subtract the time Juan arrived at the finish line from the time Antonio arrived, this is = 15 -13 = 2 minutes
Which equation is equivalent to 9x+4y=16
Answers
Answer:
8x time 2x= 16
a middle school has 520 students, 75% of the students ride the bus to school. How many students do not ride the bus to school?
Answers
Answer:
130 students do not ride the bus to school.
Step-by-step explanation:
520 * .75 = 390
390 students ride the bus to school.
520-390=130
130 students do NOT ride the bus to school.
Hope this helps! :)
Find the slope between:
(-1,-5)
(0, -1)
Answers
Answer: sry dunno
Step-by-step explanation:
plz help me The temperature at noon was 22°. From 6 AM until noon, the temperature changed by an average of 5° per hour. What WAS the temperature at 6 AM?
Answers
Answer:
-8° OR 52°
Step-by-step explanation:
Remember 22.
Now, you'll need to take 12 PM and see how many hours it is from 6 AM to 12 PM noon: 6-7, 7-8, 8-9, 9-10, 10-11, 11-12. We have 6 hours from 6 AM to 12 PM.
The problem gives us the average number of degrees it changed: 5. Since it doesn't specify HOW it changed, there are 2 answers.
In order to find the number of degrees it changed, we have to take the hours times the amount given, or in this case, 6 x 5 which equals 30.
Now that we know the fluxation number, we can either add or subtract 30 from the degrees given at noon.
So, 22 - 30 = -8 AND 22 + 30 = 50.
I hope that helps! :)
Kwamee created a coffee blend for his cafe by mixing Kona beans and Fuji beans. Kona beans cost $11 per pound and Fuji beans cost $7.50 per pound. He mixed a total of 23 pounds of coffee beans and spent a total of $197.
Write a system of equations that can be used to determine how many pounds of Kona and Fuji beans Kwamee bought.
Solve the system of equations to determine how many pounds of Kona and Fuji beans Kwamee bought.
*Show both the equations and the solution.
Answers
K + F = 23
Now let's see what we can do with the dollars. Again, we don't know how much he bought of each kind of coffee, but we do know that Kona beans cost $11 per pound and that Fuji beans cost $7.50 per pound, and we know that he spent a total of $197. So let's set that up:
11K + 7.50F = 197
Those are your 2 equations. It doesn't say you need to solve them, so you're done.
thanks for helping!
Answers
Answer:
$45
Step-by-step explanation:
so where the line intercepts the 2 hours is $45, and to find the .25 hours we take the $20 for working one hour and divide that by four, because .25 is 1/4 of an hour. so 20/4 is five. then you add 5 to 40 and we get $45 for work 2.25 hours. hope that helped
EASYY pls help asappppppppppppp
Answers
Answer:
its B
Step-by-step explanation:
Answer:
i don't know if you still need a answer or not-
Step-by-step explanation:
is 15 m 36 m and 39 m a right triangle?
Answers
Answer:
Yes
Step-by-step explanation:
A right triangle has two sides of the same length and the two same sides create a 90 degree angle.
Help please, will mark brainliest.
Answers
Step-by-step explanation:
y = -2x² + 9x - 11 (2 complex solutions)
y = 3x² - 6x + 3 (1 distinct real solution)
y = -x² - 4x + 7 (2 real solutions)
2 complex solutions, 1 real solution, and 2 real solutions.. have a nice day!!
A triangle has the lengths of (10a+9) centimeter,(8a—3) centimeters and (10b+7). Which expression represents the perimeter in centimeters of the triangle
Answers
Answer:
P = (18a+10b+13) cm
Step-by-step explanation:
Given that,
A triangle has the lengths of (10a+9) cm, (8a—3) cm and (10b+7) cm.
We need to find an expression that represents the perimeter of the triangle.
Perimeter = sum of all sides
P = (10a+9) + (8a-3) + (10b+7)
Taking like terms together,
P = (10a+8a)+10b+(9-3+7)
= 18a+10b+13
Hence, the epresssion for the perimeter is (18a+10b+13) cm.
A wire is attached to a 425-foot tower that is perpendicular to the ground. The wire makes an angle of 26.5o to the ground. what is the length of the wire in feet
Answers
Answer
952.49feet
Step-by-step explanation:
This set up will be a right angled triangle
Height = opposite side = 425foot
Length of wire = hypotenuse= x
Angle of elevation= 26.5°
Using the SOH identity
Sin 26.5 = opp/hyp
Sin26.5 = 425/x
x = 425/sin26.5
x =425/0.4462
x = 952.49feet
Hence the length of the wire is 952.49feet
A number divided by –4 is –13.
Answers
Answer:
52Step-by-step explanation:
52/-4 = -13
khdsylye
Answer:
I got 52!
Step-by-step explanation:
I searched it up to confirm it! C:
Which fraction and decimal forms match the long division problem 15 divided by 4.000
Answers
Answer: I would think the answer is C
Step-by-step explanation: 4 divided by 15 is 0.26666667
x + 7= -209
please answer :)
Answers
Answer:
x = - 216
Step-by-step explanation:
x + 7 = -209
x = -209-7
x = -216
hope you got it.
Answer:
-216
Step-by-step explanation:
ur welcome
In the scale used on a blueprint, 12 inch represents 3 feet. On the blueprint what is the length of a room with an actual length of 24 feet?
Answers
Answer:
27 feet
Step-by-step explanation:
What would be the domain and range
Answers
Answer:
the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.
Options are:
a. (3, 0)
b. (0, 3)
c. (0, -2)
d. (- 2,0)
I’ll give you brainlest if you answer this question correctly!
Answers
In other terms (x,0)
You can see on the graph where the line meets the x intercept at (3,0)
Solution: a. (3,0)
3.6 - 2 - 3 = 4x - 8
please helppp
Answers
Answer:
x=1.65
Step-by-step explanation:
First switch sides
4x-8=3.6-2-3
Then subtract 3.6 - 2 - 3
4x-8=-1.4
Add 8 to both sides
4x-8+8=-1.4+8
simplify
4x=6.6
Divide both sides by 4
4x/4 - 6.6/4
The simplify again
x=1.65
Simplify 5/v10 plz help
Answers
Answer:
D
Step-by-step explanation:
You have to multiply the numerator and denominator and conjugate
Answer:
Choice 3: [tex]\sqrt{2}[/tex]
Step-by-step explanation:
The first thing is that you have to break the √10. The only way you can break it is to make it into a 5 and a √2. So now it should look like this [tex]\frac{5}{5\sqrt{2}}[/tex]. Then we will divide the 5 by 5 and that'll become 1, so we are left with a [tex]\sqrt{2}[/tex] and that's it.
Choose the inequality that represents the following graph.
+
-3
1
-1
-5
-4
-2
0
1
2
3
4
5
MA
(A
Choose 1 answer:
As
z<-4
MY
33-4
Coi
C
>-4
MY
Pro
2-4
Answers
Answer:
The correct answer is D
You decide to make lasagna for dinner. The baking dish in the shape of a rectangular prism measures 13 inches by 9 inches by 2 inches. What is the volume of the container?
Answers
Volume = 13in * 9in * 2in = 234in³.
Answer:
234 inches³
Step-by-step explanation:
Formula for volume of a prism = [tex]L \times W \times H[/tex] (L = length, W = width, H = height)
[tex]\therefore[/tex] volume for baking dish = 13 × 9 × 2
= 234 inches³
Hope this helps :)
Solve for m 18m-13m=25 m=
Answers
Answer:
m=0
Step-by-step explanation:
Answer:
I think m=5
Step-by-step explanation:
please help. i have 20 minutes left
Answers
Answer:
You need to insert different x values and plot the point. So let's say x=1 the answer would be 10 and for 2 it would be 17
Which equations are equivalent to a/b = c/d? Choose more than one answer.
Answers
Answer:
1/3= 5/15
Step-by-step explanation:
PLEASE HELPPP ILL DO ANYTHINGGGG
Answers
Answer:
1. 16
2. 20
3. 6
4. 42
Step-by-step explanation:
you basically see where the numbers are and follow the dots down to see what number it lands on and the last one you add
The distance between two train stops is 220 miles. The train traveled at 3/4 mile per minute. How long will it take the train to reach its destination?
Answers
Answer:
4.8 hours
Step-by-step explanation:
Step one:
given data
The total distance= 220 miles
The velocity of the train= 3/4 mile per minute
Required
The time of travel
Step two:
we know that
velocity= distance/time
velocity= 220/3/4
let us multiply the numerator (220) by the inverse of the denominator(4/3)
velocity =220*4/3
velocity= 880/3
velocity= 293.3 minutes
in hours
= 293.3/60
= 4.8 hours
Can you help me with this
Answers
Answer with what
Step-by-step explanation:
