i. Distance = 16.8 km
Time = 25 mins = 5/12hours
Speed = distance/time
= 16.8÷(5/12)
= 16.8 × 12/5
= 40.32 km/h
ii. In m/s = 40.32/3.6
= 11.2 m/s
The speed of the train is 11.2 m/s.
The speed of the train is 40.32 km/h.
What is speed?Speed is the ratio of distance and time.
It shows how fast an object is moving at a given time.
We have,
Distance.
= 16.8 km
= 16.8 x 1000
= 16800 m
Time.
= 25 minutes
= 25 x 60 seconds
= 1500 seconds
Speed.
= Distance / Time
= 16800 / 1500
= 16800 / 1500
= 11.2 m per second
Speed.
Distance = 16.8 km
Time = 25/60 hours
Speed = (16.8 x 60) / 25 = 40.32 km per hour.
Thus,
The speed is 40.32 km per hour.
The speed is 11.2 meters per second.
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Halla las dimensiones de un rectángulo de 48 cm2 de área sabiendo que es 2 cm
más ancho que alto
Answer:Alto 16cm Ancho 32cm
A+2A=48
3A=48
/3
A=16
Step-by-step explanation:
help me asap lol
geometry class
Answer:
x is 35° more degrees than z
Plz help me i’ve been stuck on this one for a while
Answer:
the 2nd one
Step-by-step explanation:
Answer:
9/12 and 10/12
Step-by-step explanation:
LCM of 4 and 6 = 12Alter the numerators to fit the denominators as shown in steps 3 and 43 × 3 = 95 × 2 = 12Re-write the expression: 9/12 + 10/12I hope this helps!
Elena biked 8 miles on Saturday. Use the double number line to answer the questions. Be prepared to explain your reasoning. A) What is 100% of her Saturday distance? B) On Sunday, she biked 75% of her Saturday distance. How far was that? C) On Monday, she biked 125% of her Saturday distance. How far was that?
Answer:
A - Since Elena biked for 8 miles on Saturday, 100% of her distance traveled was 8 miles.
B - Now, on Sunday she traveled 75% of what she traveled on Saturday, which arises from the following calculation:
8 x 0.75 = X
6 = X
So on Sunday she traveled 6 miles.
C - Finally, on Monday she traveled 125% of what she traveled on Saturday, which arises from the following calculation:
8 x 1.25 = X
10 = X
So on Monday she traveled 10 miles.
Answer:
I agree with the one above me
Step-by-step explanation:
Diego is 165 cm tall andre is 1.7m tall how many centimeters tall is andre
Answer:
he is 170cm tall
Step-by-step explanation:
Answer:
Andre is 170 cm tall.
Step-by-step explanation:
There are 100 centimeters in a meter. To find the answer, we would multiply 1.7 by 100 to convert it to centimeters.
1.7 × 100 = 170
or
1.7 × 10² = 170
17. 1,000 X n = 630
n =
Answer:
0.63 or 63/100
Step-by-step explanation:
Answer:
0.63
Step-by-step explanation:
For this you would want to do the reverse operation. So you see that it is multiplication? You would have to do division to get n by itself. When you divide 630 by 1,000 you would get 0.63.
How many 2/3 size pieces in 4 whole
Answer:
64 cm2
Step-by-step explanation:
Answer:
6 pieces
Step-by-step explanation:
Number of pieces = 4 ÷ (2/3)
[tex]= 4 *\frac{3}{2}\\\\= 2 * 3\\ = 6[/tex]
what are 1 step equations
Answer:
A one-step equation is an algebraic equation you can solve in only one step. You've solved the equation when you get the variable by itself, with no numbers in front of it, on one side of the equal sign.
Step-by-step explanation:
:D
The chances of winning the Maryland lottery are one chance in twenty-two million. The probability would be considered an example of:_______
Answer:
Descriptive statistics
Step-by-step explanation:
The chances of winning the Maryland lottery are one chance in twenty-two million. The probability would be considered an example of Descriptive statistics
Descriptive statistics is referred to as the process of using a descriptive statistic. A descriptive statistic contains the quantitative summary from a sample data or information.The chances of winning the Maryland lottery are one chance in twenty-two million is an example.
Miriam pays a service to deliver the chair to her house. Her bill is $24.75, and she tips the driver 20% of the cost of delivery. What is the total expense for the delivery?
Answer:
29.7
Step-by-step explanation:
Please Help
Starr drives 495 miles in 9 hours. How many miles does Starr drive in 15 hours? 825 miles 975 miles 1,040 miles 1,375 miles
Answer:
825 miles
Step-by-step explanation:
Divide starting number by nine to get 55. Then multiply 55 by 15 to get 825 miles
Answer:
A 825
Step-by-step explanation:
if if you answer correctly ill give brainliest
A number is called flippy if its digits alternate between two distinct digits. For example, 2020 and 37373 are flippy, but 3883 and 123123 are not. How many five-digit flippy numbers are divisible by 15?
Answer:
4 numbers
Step-by-step explanation:
Given
Five Digit Flippy Numbers
Required
Determine the number of these digits divisible by 15
Represent the format of this digits as: ABABA
A number is divisible by 15 if and only if it ends with 5 or 0
i.e.
[tex]ABABA = 0B0B0[/tex]
or
[tex]ABABA = 5B5B5[/tex]
The first format [tex]ABABA = 0B0B0[/tex] cannot be considered because the number starts with 0 which means that
[tex]ABABA = B0B0[/tex] ---- This is 4 digits not 5
Taking into consideration: 5B5B5
We know that 15 is a product of 5 and 3
i.e.
[tex]15 = 5 * 3[/tex]
5B5B5 is divisible by 5 because it ends with 5. So, for a number of this format to be divisible by 15, it must be divisible by 3
Numbers in this category are: 50505, 53535, 56565 and 59595
Hence, there are 4 five-digit flippy numbers divisible by 5.
Is 8, 9, 14, 5 solutions to y ≤ 9?
Answer:
y ≤ 9 is saying that y is equal to anything 9 and below. Therefore, 9, 8, and 5 are correct answers since they are either equal to or less then 9. Although 14 is the only incorrect one.
14 is incorrect
Step-by-step explanation:
In ∆PQR,p:q:r=√3:1:1. Calculate the ratio p:q:r in its simplest form.
9514 1404 393
Answer:
p : q : r = √3 : 1 : 1
Step-by-step explanation:
The ratio is already in simplest form. It cannot be expressed as the ratio of integers, because √3 is irrational.
If a windmill with radius 26 feet makes 12 full revolutions every 1 minute, what is its linear speed?
The linear speed of the windmill is 1,960.35 feet per minute.
Given data:
To calculate the linear speed of the windmill, determine the distance traveled by a point on the circumference of the windmill in 1 minute.
The circumference of a circle can be calculated using the formula:
Circumference = 2 * π * radius
Given that the radius of the windmill is 26 feet, the circumference is:
Circumference = 2 * π * 26
Now, the windmill makes 12 full revolutions every 1 minute. Since one revolution is equivalent to one circumference, the total distance traveled in 1 minute is:
Distance = 12 * Circumference
Substituting the value of the circumference:
Distance = 12 * (2 * π * 26)
Simplifying this expression:
Distance = 24 * π * 26
Therefore, the linear speed of the windmill is equal to the distance traveled divided by the time taken, which is 1 minute:
Linear speed = Distance / Time
Linear speed = 24 * π * 26 / 1
Calculating this value, the linear speed of the windmill:
Linear speed ≈ 1,960.35 feet per minute
Hence, the linear speed is 1,960.35 feet per minute.
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Point A is located in which quadrant? On a coordinate plane, point A is at (negative 3, 5). Quadrant I Quadrant II Quadrant III Quadrant IV
Answer:
quadrant 2
Step-by-step explanation:
(+8) + (-2)
I need to understand this
Answer:
6
Step-by-step explanation:
(+8) + (-2): Okay so for this question you can just cancel the + in the middle and just do 8-2 which gives you 6, however this doesnt work for all questions so be careful
PLEASE HELP. ITS ALGEBRA
Answer: the y intercept is 330. the rate of change is -55. the domain is infinity since it is linear i'm pretty sure
Step-by-step explanation:
Encuentra la forma de la ecuacion de la recta que pasa por el punto P(-1,5) y que es perpendicular a la recta 2x + 3y - 8= 0
Responder:
2y-3x = 12
Explicación paso a paso:
La forma estándar de ecuación de una línea se expresa como;
y = mx + c
m es la pendiente
c es la intersección
Primero necesitamos la pendiente de la ecuación conocida;
Dada la ecuación 2x + 3y - 8 = 0
Vuelva a escribir en forma estándar;
2x + 3y = 8
3y = -2x + 8
y = -2x / 3 + 8/3
Por lo tanto, la pendiente de la línea dada es -2/3
Dado que la línea desconocida es perpendicular a la línea dada, el producto de sus pendientes será -1;
mM = -1
M = -1 (-2/3)
M = 3/2
La pendiente de la línea desconocida es 3/2
Obtener la intersección:
Sustituya m = 3/2 y el punto (-1, 5) en la expresión y = mx + cy obtenga c como se muestra;
5 = 3/2 (-1) + c
5 = -3/2 + c
c = 5 + 3/2
c = (10 + 3) / 2
c = 13/2
Obtenga la ecuación requerida;
Dado que y = mx + c
y = 3x / 2 + 13/2
multiplicar por 2;
2y = 3x + 12
2y-3x = 12
De ahí que la forma de la ecuación de la recta que pasa por el punto P (-1,5) y que es perpendicular a la recta 2x + 3y - 8 = 0 es 2y-3x = 12
Answer:
The answer is A, C, E
Step-by-step explanation:
I took the test
Which statements involving cosine and sine are true? Check all that apply.
sin(–45°) = –sin(45°)
sin(–45°) = sin(45°)
cos(–45°) = –cos(45°)
cos(–45°) = cos(45°)
cos(–45°) = sin(–45°)
Answer:
sin(–45°) = –sin(45°)
cos(–45°) = cos(45°)
Step-by-step explanation:
The statements which involving cosine and sine are true are sin(–45°) = –sin(45°) and cos(–45°) = cos(45°).
What are Trigonometric Ratios?Trigonometric ratios are the ratios which is described for two sides of a right angled triangle.
The main three trigonometric ratios are sine, cosine and tangent functions.
Trigonometric functions are also called as Circular functions.
There are five statements given.
We have the identities that,
sin (-x) = - sin(x) and
cos (-x) = cos x
Using this for each of the statement,
sin(–45°) = –sin(45°) is true.
sin(–45°) = sin(45°) is false
cos(–45°) = –cos(45°) is false
cos(–45°) = cos(45°) is true
For the last one,
cos(–45°) = cos (45°) = sin (45°) ≠ sin(–45°)
So this is false.
Hence the true statements are sin(–45°) = –sin(45°) and cos(–45°) = cos(45°).
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X - 15 = 18
What is the value of x?
Answer:
x=33
Step-by-step explanation
2 step equation
add 15 to 18 because there's a minus in front of the 15
15+18=33
Answer:
X = 33
Step-by-step explanation:
bc 33 subtracted by 15 is 18
A. Last night, 8.2 x 105 fans
attended a concert, and each
fan recorded an average of
600 seconds of the concert on
their phones. What is the total
number of seconds recorded
from all of the fans at the
concert?
Step-by-step explanation:
8.2 x 105 = 861
861 x 600 = 516,600
Answer: 516,600
Factor -5 out of 10a-25
Please help with a step-by-step explanation!!
Answer:
-5(-2a + 5)
Step-by-step explanation:
10a - 25
-5(-2a + 5)
Answer:
-5(-2a+5)
Step-by-step explanation:
your dividing each number by -5, to get -5 factored.
10 / -5 = -2
-25 / -5 = 5
then you plug it back into the equation with the 5 being factored.
david is drinking a sports drink that us 24 ounces. he drinks 3 ounces in 5 minutes what percentage of the sports drink will david have finished after 30 minutes
Answer:
18 ounces
Step-by-step explanation:
5 x 6= 30
3 x 6= 18
How many millimetres are there in 3
cm
Answer:
30 millimeters
Step-by-step explanation:
Every centimeter is 10 millimeters so 30 millimeters=3cm.
Hope this helps ;D
Alisha conducted an experiment in which a spinner landed on green 7 times. If the experimental probability of the spinner landing on green is 1 5 , how many trials did Alisha perform? 30 35 45 50
Answer:35
Step-by-step explanation:
Answer:
35
Step-by-step explanation:
just got it right on edge
What is -2+(-4) I need help with it because id not understnad how to add integers
Answer:
-6
Step-by-step explanation:
2+4=6
turn the numbers into negatives
-2+-4=-6
plz help ill mark you brainliest
Answer:
cos 30= 0.1542
tan 48= 1.2001
sin 79= -0.4441
plz mark brainliest
If rectangle ABCD was reflected over the Y axis reflected over the X axis and rotated 180° where would point A
lie
Answer:
The answer is (-4,1)
Step-by-step explanation:
Answer:
(-4,1)
Step-by-step explanation: