Answer:
7 hours and 30 minutes
Step-by-step explanation:
[tex]240 \div 4 = 60km \: per \: h[/tex]
[tex]450 \div 60 = 7.5 = 7h \: 30min[/tex]
It will take motor bike 7.5 hours to cover 450 Km of distance.
What is Speed in Kinematics?Speed of a body is defined as the distance travelled by it per unit time taken to cover the distance.
Mathematically-
S = Δd/Δt or S = {d(2) - d(1)}/{t(2) - t(1)}
It is a scalar quantity as it only has magnitude and no direction.
Given is a motor bike travels 240 km ins 4 hours.
We can calculate the speed of the bike as -
s = 240/4 = 60 Km/hr
Then, the time taken to cover 450 Km will be -
t = 450/60
t = 7.5 hours
Therefore, it will take motor bike 7.5 hours to cover 450 Km of distance.
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A family has three children.The oldest is 4 years older than the middle,and the youngest child is 2 years younger than the middle child.The sum of the ages of the children is 26.
Answer:
The age of the youngest child = x = 6 years
The age of middle child = y = 8 years
The age of the oldest child = z = 12 years
Step-by-step explanation:
Let us represent:
The age of the youngest child = x
The age of middle child = y
The age of the oldest child = z
The sum of the ages of the children is 26.
Hence: x + y + z = 26...... Equation 1
The oldest is 4 years older than the middle
z = 4 + y
The youngest child is 2 years younger than the middle child
x = y - 2
Hence, we substitute 4 + y for z and y - 2 for x in Equation 1
x + y + z = 26...... Equation 1
y - 2 + y + 4 + y = 26
y + y + y -2 +4 = 26
3y + 2 = 26
Subtract 2 from both sides
3y + 2 - 2 = 26 - 2
3y = 26 - 2
3y = 24
y = 24/3
y = 8
Solving for x
x = y - 2
x = 8 - 2
x = 6
Solving for z
z = 4 + y
z = 4 + 8
z = 12
Therefore:
The age of the youngest child = x = 6 years
The age of middle child = y = 8 years
The age of the oldest child = z = 12 years
the numbers of
You have a total of 10 coins consisting of nickels and dimes in your pocket. The value of the coins is $0.70. Write and solve a system of linear equations to
nickels and dimes in your pocket. Let x represent the number of nickels and let y represent the number of dimes.
System of equations
There are
nickels in your pocket and
dimes in your pocket
Answer:
6 nickels and 4 dimes
Step-by-step explanation:
6 times .05 is .30
4 times .10 is .40
just add them
.40 + .30 = .70
The equation should be:
.70 = .10y + .05x
I have 4 dimes and 6 nickels.
The question is ill-formatted. The following is the question.
You have a total of ten coins in your pocket, all of which are nickels and dimes. The total value of the coins is $0.70. To find nickels and dimes in your pocket, write and solve a system of linear equations. Let x represents the number of nickels and let y represent the number of dimes. Find the number of nickels and dimes.
How much is a cent?One-hundredth of a dollar is equivalent to one cent.
How much is a nickel?A nickel is worth 5 cents. That means $0.05.
How much is a dime?A dime is worth 10 cents. That means $0.10.
How to solve the question?As per the question,
conversion of the statements into mathematical equations:
"You have a total of ten coins in your possession, all of which are nickels and dimes."Subtracting the above equation from the below equation we get y=4.
And by substituting y=4 in x+y=10 we get x=6.
Hence, I have 4 dimes and 6 nickels.
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6 QUESTIONS!! Simplify, thankyou!!
1. (-2 + 7) - (g + 11)
2. (6d + 5) - (2 - 3d)
3. (4 - 5y) - 2(3.5y - 8)
4. (2n - 9) - 5(-2.4n + 4)
5. 1/8(-8c + 16) - 1/3(6 + 3c)
6. 3/4(3x + 6) - 1/4(5x - 24)
Answer: Check explanation
Step-by-step explanation: -g-6, 9d+3, -12y+20, 14n-29, -2c, x+21/2
Answer:
1. -g-6
2. 9d+3
3. -12y+20
4. 14n-29
5. -2c
6. x+21/2
Step-by-step explanation:
A new novel is selling for $17.95. If it is on sale at 40% off, find the amount of discount and the sale price.
A. Discount: $10.77; Sale Price: $7.18
B. Discount: $4.39; Sale Price: $13.56
C. Discount: $13.56; Sale Price: $4.39
D. Discount: $7.18; Sale Price: $10.77
Answer:
A
Step-by-step explanation:
multiply $17.95 by 40% to get the discount ($17.95 x .4), which equals $7.18.
the sale price is the initial price of the book less the discount ($17.95-$7.18), which equals $10.77.
Select all the correct answers
Which functions are the same as their inverse functions?
Answer:
f(x)
Step-by-step explanation:
f(x)=x-1/x+5
y=x-1/x+5
xy+5y=x-1
xy-x=-1-5y
x(y-1)=1-5y
x=-1-5y/y-1
x=-5
Answer: the first one
10 points - What is the 9th term of the sequence?
2, 8, 32, 128...
Answer: a 9 = 131072
Step-by-step explanation:
4.75,4.75 exponent form
Triangles angles from largest to smallest
Answer:
O is largest, C is medium, and T is smallest
Step-by-step explanation:
You need to pay close attention to the side length. The higher the length, the smaller the angle.
:)
can someone plz help me with this?
Solve the problem.
A survey of a group of 114 tourists was taken in St. Louis. The survey showed the following:
62 of the tourists plan to visit Gateway Arch;
47 plan to visit the zoo;
10 plan to visit the Art Museum and the zoo, but not the gateway Arch;
12 plan to visit the Art Museum and the Gateway Arch, but not the zoo;
17 plan to visit the Gateway Arch and the zoo, but not the Art Museum;
7 plan to visit the Art Museum, the zoo, and the Gateway Arch;
16 plan to visit none of the three places.
How many plan to visit the Art Museum only?
Select one:
a. 47
b. 34
C. 98
d. 13
Answer:
b
Step-by-step explanation:
(PLEASE HELP IM TAKING A MATH QUIZ) Seventy parents showed up for a parent meeting at school. Mrs. Quinn set up 12 tables in the library for the meeting. The graph below displays this information.
Step-by-step explanation:
Depends on what the question if th question is how many more tables she need the answer is 1 if it asked how many ppl sit and each table 5 ppl and 12 tables and 1 at the last table other than that in confussed
I’m not entirely sure with this question! Giving brainliest answer. :)
Answer:
4g with the 2 on top + 6g then you should get your answer!
Step-by-step explanation:
Good Luck!
All you have to do is add the 2 numbers that I gave you!
Answer:
I’m pretttttyyyy sure it’s 4g^2 + 6g
Step-by-step explanation:
Do u need an explanationnnnnn
From the choices below, choose an expression that is equivalent to the expression below
22/ -4
please helpp!!!!
Answer:.
Step-by-step explanation:
tynya is training a turtle for a turtle race for every 2/3 of an hour that the turtle is crawling he can travel 2/23 of a mile at what unit rate is the turtle crawling
Answer:
3/23 miles per hour
Step-by-step explanation:
2 /23 mile
-----------------
2/3 hour
2/ 23 ÷ 2/3
Copy dot flip
2 /23 * 3/2
Rewriting
2/2 * 3/23
3/23 miles per hour
Answer:
3/23 miles per hour
Step-by-step explanation:
no need to thank me
Which is one quality of the entire open-ocean zone? few nutrients low pressure ample sunlight varying salinity
Few nutrients
I just took the test and this is the correct answer
The one quality of the entire open-ocean zone is few nutrients
What is the open-ocean zone?The open-ocean zone is the part of the sear where over half of the ocean is filled with water.
Because of the presence of water, there are only few nutrients that can be found on the entire open-ocean zone
Hence, the one quality of the entire open-ocean zone is few nutrients
Read more about open-ocean zone at:
https://brainly.com/question/15382223
14k -14m - 23k + 59m
-9k + 45m
you can reorganize the problem: 14k - 23k - 14m + 59m
from here, you can just do the somple math: -9k + 45m
May I have brainliest please? :)
The image of the point (2,−8) under a translation is (−2,−6). Find the coordinates of the image of the point (5,2) under the same translation.
THERES NO IMAGE
Answer:
Translation =image - obect
Thus you get translation first, using that translation you get the coordinates of your image
Use the quadratic formula to solve the equation.
2x2 – 7x - 3=0
Enter your answers, in simplified radical form, in the boxes
Step-by-step explanation:
2x² - 7x - 3 = 0, where a = 2, b = -7, c = -3.
By the Quadratic formula,
x = [-b ± √(b² - 4ac)] / 2a
x = (7 ± √73) / 4.
Describe the pattern in the mapping diagram. Complete the diagram.
Answer:
2,8,14,20,26,32
Step-by-step explanation:
Probably there are steps of 6
I need some help y'all hmu
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! I DONT KNOW HOW TO GRAPH SO CAN YOU SHOW ME HOW TO DO IT PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLS DRAW IT
Suppose a triangle has two sides of length 3 and 4 and that the angle
between these twO sides is 60°. What is the length of the third side of the
triangle?
help!
Answer: =3
It would be C.
Answer:
Step-by-step explanation:
Find the missing angle
Plssss help !!!
Answer:
120 degrees
Step-by-step explanation:
What is the solution to the given inequality?
-2x + 4 < 12
Answer:
-4
Step-by-step explanation:
-2x +4 < 12
-2x < 12 -4
-2x < 8
x > -8/2
x > -4
Answer:
x > - 4
Step-by-step explanation:
- 2x + 4 < 12 ( subtract 4 from both sides )
- 2x < 8
Divide both sides by - 2, reversing the symbol as a result of dividing by a negative quantity.
x > - 4
During the new Moon phase, the Moon moves between Earth and the Sun. At this point, the Sun is m kilometers from the moon and e kilometers from Earth. Which absolute value expression represents the distance between the Moon and Earth? es A) le - ml B) mel Im-el D Cannot be determined
Simplify 2.52
Answer choices
A. 100
B. 20
C. 50
S. 49
Answer:
d
Step-by-step explanation:
thats the answer
Simplify 4+3/7x-2-2/7x
[tex] \huge \bold{answer}[/tex]
Estimate using rounding. 8.763 – 5.4
Answer:
4
Step-by-step explanation:
8.763 – 5.4
9 – 5 = 4
How can you rewrite the following equation so that it will have infinitely many solutions? 6x-3=5x-5
A) Change the coefficient of x to be the same number.
B) Multiply one side of the equation.
C) Change the constants to be the same.
D) Both A and C need to occur to create infinitely many solutions.
Answer:
i could be B
Step-by-step explanation:
if i am wrong sorry
but then A
Help please :/ I’ll mark the brainliest.
Answer:
pQ
Step-by-step explanation:
Dont Think hard on the letters just think there numbers so reamber that
Answer:
PS maybe idrk to much on this stuff but I hope it helps :)
