A car covers the distance between two cities in 6 hours. A van covers the same distance in 5.5 hours by travelling 4 km/h faster than the car. What is the distance between the two cities? Find the speed of the car and the van.
Step-by-step explanation:
[tex]\large\underline{\sf{Solution-}}[/tex]
Given that,
A car covers the distance between two cities in 6 hours.
A van covers the same distance in 5.5 hours.
The speed of the van is 4 km per hour faster than the speed of car.
Let assume that
Speed of the car be x km per hour
So,
Speed of van is x + 4 km per hour.
Let further assume that
Distance between two cities be y km.
We know, Distance covered = Speed × Time.
➢ Now, Distance (y) covered by car at the speed of x km per hour in 6 hours is
[tex]\rm :\longmapsto\:\boxed{\tt{ y = 6x}} - - - - (1)[/tex]
➢ Also, Distance (y) covered by van at the speed of x + 4 km per hour in 5.5 hours is
[tex]\rm :\longmapsto\:\boxed{\tt{ y = 5.5(x + 4)}} - - - - (2)[/tex]
So, from equation (1) and (2), we have
[tex]\rm :\longmapsto\:6x = 5.5(x + 4)[/tex]
[tex]\rm :\longmapsto\:6x = 5.5x + 22[/tex]
[tex]\rm :\longmapsto\:6x - 5.5x = 22[/tex]
[tex]\rm :\longmapsto\:0.5x = 22[/tex]
[tex]\rm :\longmapsto\:\dfrac{5}{10} \times x = 22[/tex]
[tex]\rm :\longmapsto\:\dfrac{1}{2} \times x = 22[/tex]
[tex]\bf\implies \:x = 44[/tex]
On substituting the value of x, in equation (1), we have
[tex]\rm :\longmapsto\:y = 6 \times 44[/tex]
[tex]\bf\implies \:y = 264[/tex]
So,
[tex]\begin{gathered}\begin{gathered}\bf\: \rm :\longmapsto\:\begin{cases} &\sf{Distance \: between \: cities = 264 \: km} \\ \\ &\sf{Speed \: of \: car \: = \: 44 \: km \: per \: hour}\\ \\ &\sf{Speed \: of \: van \: = \: 48 \: km \: per \: hour} \end{cases}\end{gathered}\end{gathered}[/tex]
is 2.346982105 an irracional number?
Answer:
Step-by-step explanation:
Yes. because In mathematics, the irrational numbers are all the real numbers which are not rational numbers. That is, irrational numbers cannot be expressed as the ratio of two integers
Answer:
yes
Step-by-step explanation:
Irrational numbers are numbers that simply are not rational, and cannot be written as a fraction, though they cna be written as a decimal. Irrational numbers msot of the time have a lnog row of non-repeating numbers after the decimal. So, yes.
2.346982105 is an irracional number
how much 14 do u need to make 100
Answer:
You cant
Step-by-step explanation:
To make 100, you cant have a solid number of 14's to make 100. The closest to 100 is 14 * 7.
Evaluate the expression when b=-5 and c=7
b-3c
Answer:
b=5 should be the correct answer
Answer:
-26
Step-by-step explanation:
b = -5 and c = 7, Plug in:
b - 3c
-5 - 3(7)
-5 - 21
-26
Hopefully this helps!
Brainliest please?
help i’m in school and failing
Answer:
have you been cheating and your answer i think is number 3
Step-by-step explanation:
Which description best fits the graph?
Answer:
Step-by-step explanation:
U ultra
K is the midpoint of JL Jk=9x-5 and KL=7x+3 Find JL
12+17-3x2 rewrite this in perenthesis
Answer:
(12+17)-(3x2)
Step-by-step explanation:
Answer:
12+17-(3x2)
Step-by-step explanation:
You do multiblecation before addition so you put it in parenthesis
In the triangle, m∠JKL = 3° and m∠KJL = 17°. Find m∠JLM.
Answer:
160
Step-by-step explanation:
the middle letters ttell you which corner of the triangle has that degree.
all corners added together must equal 180 in a triangle
jkl has k in the middle so k is 3°
kjl has J in the middle so J is 17°
jlm has L in the middle and is unknown
K + J + L = 180
3+17+L = 180
20 + L = 180
L = 160
Answer:160 degrees
Step-by-step explanation:
180-3-17=160
All triangles neasure 180 degrees
Ellen,Krista,and Tori decide to buy their Mrs.Hannigan a fabulous pink flamingos purse The cost of the purse is $205 (what a bargain!). Home much money will each person pay if the cost is split equally ?
Solve for x .. can someone please help me
Answer:
[tex]x = 9[/tex]
Step-by-step explanation:
[tex]7x + 49 = 2x + 94 \\ 7x - 2x = 94 - 49 \\ 5x = 45 \\ \\ x = \frac{45}{5} \\ \\ x = 9[/tex]
I hope I helped you^_^
Please help me solve this ASAP
Answer:
6. [tex]\pi = \frac{C}{2r}[/tex]
7. Translation
Step-by-step explanation:
6: To solve for π means to isolate it on one side.
Step 1: Divide both sides by 2r.
[tex]\frac{C}{2r} = \frac{2\pi r}{2r}[/tex] [tex]\pi = \frac{C}{2r}[/tex]Therefore, π = circumference over twice the radius, or circumference over diameter.
7: #7 is a translation because each point is moving vertically 3 units and horizontally 1 unit (3 units up and 1 unit to the right). If it were a reflection, we'd be able to spot a line of reflection, but there isn't any here. Also, if it were a rotation, the triangle would change the way its angled, and it'd be in a different quadrant
Therefore, this is a translation.
A ride sharing company offers two options: riding in small cars that can carry up to 3 passengers each, or riding in large vans that can carry up to 6 passengers each. A group of 27 people is going to use the ride sharing service to take a trip. The trip in a small car costs $10 and the trip in a large van costs $15. The group ends up spending $80 total. An equation that represents one of the constraints is 3x+6y=a. What is the value of a?
Answer:
a = 27
Step-by-step explanation:
3x + 6y = a
From the given information, 3 and 6 are the numbers of passengers that cars and vans can take. That means x and y must be the numbers of cars and vans, and a is the total number of passengers.
a = 27
Write 10 9 as a decimal. Round to the nearest thousandth if necessary.
Answer:
If you mean 10/9 then the answer should be 1.1 repeating itself
Step-by-step explanation:
Answer:
1.111
Step-by-step explanation:
10/9 = 1.111
( i rounded 10/9 to a decimal)
am not 100% about this but hope it help
Need help ASAP! Directions in picture;)
Answer:
x=94/5
Step-by-step explanation:
10x-8=180
10x=188
x=188/180
x=94/5
A scuba diver descends from the surface at a rate of 38 feet per minute.
What is the position of the scuba diver relative to the surface after diving for 3 minutes?
Answer:
114 feet
Step-by-step explanation:
Since the rate per minute is 38 ft per minute. You multiply that by three and get your rate for 3 minutes.
Answer:
114
Step-by-step explanation:
38
38
+38
114
Hope this helps!
Brainliest pls
Have a great day!
ILL GIVE BRAINLIEST PLS HELP
Each statement describes a transformation of the graph of y = x. Which statement correctly describes the graph of y = x + 9.5?
A.
It is the graph of y = x translated 9.5 units to the right.
B.
It is the graph of y = x translated 9.5 units up.
C.
It is the graph of y = x where the slope is increased by 9.5.
D.
It is the graph of y = x translated 9.5 units down.
Answer:
Im pretty sure is B but it might be C.
Step-by-step explanation:
Q. Which of these represents stope-intercept form of a linear equation?
answer choices
A)Ax+By=c
B)y-yı = m-x)
C)y=kx
D)y=mx + b
Answer:
D
Step-by-step explanation:
this is so easy just plug the question in
Answer:
D.y= mx + b
Step-by-step explanation:
Slope-intercept is a specific form of linear equations. It has the following general structure
y= mx + b
Here, m can be any two real numbers. For example, these are linear equations in slope-intercept form:
y=2x+1
y=-3x+2.7y
y=10-100x
On the other hand, these linear equations are not in slope-intercept form:
2x+3y=5
y-3=2(x-1)y−3=2(x−1)
x=4y−7
Slope-intercept is the most prominent form of linear equations
Which is greater? 2x²-2x + 6 - (-3x) or -(3-2x²) + 5 + 2x?
Answer:2x²-2x + 6 - (-3x)
Step-by-step explanation:
For a field trip 29 students rode in cars and the rest filled five buses. How many students were
in each bus if 294 students were on the trip?
Pls help
Two numbers multiply to be 20 and add to be 12. What are the numbers?
Answer:2 and 10
Step-by-step explanation:
I NEED SOME HELP! Please? Lines a and b lie in the standard (x,y) coordinate plane. An equation for line a is y = 0.15x + 5000. The slope of line b is 0.2 greater than the slope of line a. What is the slope of line b?
0.35
0.05
0.015
3.0
500
In the standard (x,y) coordinate plane, which of the following lines are perpendicular to the line 2y = 3x + 1?
y = - 2/3x + 3
y = -3/2x - 1
y = 2/3x - 1
y = 3/2x + 2
y = 2/3x + 1
a. Just add 0.2 to 0.15 in equation a. y = mx + b shows that m is the slope. Answer would be 0.35.
b. 2y = 3x + 1
y = 3x/2 + 1/2
Perpendicular = negative reciprocal of original function's slope.
3/2 -> -2/3x.
Only the first one fulfills the equation, thus:
-2/3x + 3.
(1) The slope of line b is 0.35. The correct option is A.
(2) The equation perpendicular to the line y = - 2/3x + 3. The correct option is A.
What is an equation of the line?An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.
The general form of the equation of the line:-
y = mx + c
m = slope
c = y-intercept
Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )
(1) An equation for line a is y = 0.15x + 5000. The slope of line b is 0.2 greater than the slope of the line.
The slope of line b,
b = 0.2 + a
b = 0.2 + 0.15
b = 0.35
(2) The equation of the line perpendicular to the line 2y = 3x + 1 is calculated as:-
The slope of the line perpendicular to the other line is the opposite reciprocal. The equation will be,
y = -2/3x + 3
To know more about an equation of the line follow
https://brainly.com/question/18831322
#SPJ2
Part 1 state the domain and range of the given relation.
Part 2 is the relation a function
{(-1, 2),(1, 2),(3, 2), (6, 2)}
Please help
7 = -10s -3 is equal to " S =1" ???
what is the correct answer i am correct or not??
Answer:
[tex]s=-1[/tex]
Step-by-step explanation:
[tex]7=-10s-3[/tex]
[tex]-10s-3=7[/tex]
Add 3 to both sides:
[tex]-10s-3+3=7+3[/tex]
[tex]-10s=10[/tex]
Divide both sides by -10:
[tex]\frac{-10s}{-10}=\frac{10}{-10}[/tex]
[tex]s=-1[/tex]
____________________
which type of agency is responsible for maintaining public lands held in trust
Answer:
resource management agency
Step-by-step explanation:
write at least 5 arithmetic sequence and determine the common difference
An arithmetic sequence is a sequence where we use addition or subtraction to get to the next term.
Examples:
1, 3, 5, 7, 9...
Common Difference: Add 2
2, 6, 10, 14, 18, 22..
Common Difference: Add 4
100, 90, 80, 70, 60, 50..
Common Difference: Subtract 10.
25, 30, 35, 40, 45..
Common Difference: Add 5
1, 10, 19, 28, 37..
Common Difference: Add 9
Hope it helps!
[tex]ANSWERED:\\GraceRosalia[/tex]
If Michael made 12 shots out of 18 what is the percentage of shots made by him?
Answer:
At least 66%
Step-by-step explanation:
65% of 18 is 11.7
67% of 18 is 12.06
Therefore, at least 66% of the shots where made by Michael.
Step-by-step explanation:
100% = 18
x% = 12
x% = 100% / 100 × x
so,
18/100 × x = 12
18x = 1200
x = 1200/18 = 200/3 ≈ 66.66666...
so, he made about 67% of the shots.
Given ∠A and ∠B are vertical angles with m∠A=50x+10 and m∠B=70x−10 .
What is x?
Enter your answer in the box.
Which of the following statements does not describe the structure of an atom?
A) An atom has a small, dense center called the nucleus.
B) Inside the nucleus of an atom are protons and electrons.
C) Protons are positively charged sub-atomic particles.
D) Electrons are negatively charged sub-atomic particles.
Answer:
B) Inside the nucleus of an atom are protons and electrons.
Explanation:
Inside the nucleus of an atom are protons and neutrons. Electrons orbit (kind of?) away from the nucleus.
Which benchmark fraction is 6/7 closest to PLZ HELP