Answers
Answer:
The average speed of the car, in miles per hour, from 17:30 to 19:42, is 119.167 meters per second.
Step-by-step explanation:
Physically speaking, average speed ([tex]\bar v[/tex]), measured in miles per hour, is the distance travelled ([tex]\Delta s[/tex]), measured in miles, divided by time ([tex]\Delta t[/tex]), measured in hours. That is:
[tex]\bar v = \frac{\Delta s}{\Delta t}[/tex] (1)
The time needed by the vehicle is:
[tex]\Delta t = 72\,min\times \frac{1\,h}{60\,min}[/tex]
[tex]\Delta t = 1.2\,h[/tex]
If we know that [tex]\Delta s = 143\,mi[/tex] and [tex]\Delta t = 1.2\,h[/tex], then the average velocity of the car is:
[tex]\bar v = \frac{143\,mi}{1.2\,h}[/tex]
[tex]\bar v = 119.167\,\frac{m}{s}[/tex]
The average speed of the car, in miles per hour, from 17:30 to 19:42, is 119.167 meters per second.
Related Questions
Given: f(1) = 3x– 7, 9(x) = 2x^2 – 3x +1, h(x) = 4x + 1, k(x) = –x^2+3
Find: (h o g) (x)
Answers
Answer:
(h o g) (x) = h(g(x))
Step-by-step explanation:
(h o g) (x) = h(g(x)) = 4(g(x))+1 = 4(2x^2 -3x + 1 ) + 1
= 4*2x^2 - 4*3x + 4*1 + 1
= 8x^2 - 12x + 4 + 1
= 8x^2 - 12x + 5
A brand of uncooked spaghetti comes in a box that is a rectangular prism with a length of 9 inches a width of 3 inches and a height of 3 1/2
Answers
Answer:
94.5
Step-by-step explanation:
3x3.5x9=94.5
Hope this helps :)
Also please mark as branliest
What is the sum of 3/15 + 2/5 as a fraction
Answers
hope this helps :)
Answer: 3/5
Step-by-step explanation:
(3/15)+(2/5)= (3+6)/15= 9/15= 3/5
Write the polynomial you created in factored form.
Answers
Answer:
Mr.poop was a very wise man he poop in the toilet and in the carpet he didn't know who he was but he was a very very wise man.
Find the value of the expression below when x=10x2 - 2(x +5)
Answers
Answer:
x=10.2-2(×+5)........ given
×=20-2×-10............... avoid the bracket
x=10-2×..............collect the like terms
x+2x=10-2×+2×...... add 2x from both side
3x=10................simplify
3x/3=10/3..........divide both side by 3
x= 3.333.............x is solved
Step-by-step explanation:
i hope it is help full
whats 2+2-1+17-9+29-9=
Hows your day
Answers
Answer:
31 is the answer of this question
Answer:
31 and my day was good how was yours?
Step-by-step explanation:
A student answered 86 problems on a test correctly and received a grade 98%. How many problems were on the test, if all the problems were worth the same number of points? (Round to the nearest whole number)
Answers
Answer:
88 total questions
Step-by-step explanation:
Answer:
88 problems
Step-by-step explanation:
86/0.98 = 87.76 ≈ 88
please help with this I will give the crown
4−a−a−a? solve this, please
Answers
Answer:
4-3a
Step-by-step explanation:
combine like terms
hope this helps :)
Evaluate the expression when a=10, b=9, and c=4: 2a +3
Answers
Answer:
23
Step-by-step explanation:
2(10) + 3
20 +3
23
HOPE IT HELPS YOU!
You are making lemonade. The recipe calls for 1 cup of lemon juice for 3 cups of water. Fill in the blanks to correctly complete the lemon juice to cups of water ratio to make the lemonade.
Answers
Answer:
3 cups of lemon= 9 cups of water
5 cups of lemon= 15 cups of water
8 cups of lemon = 24 cups of water
Step-by-step explanation:
all you have to do is multiply the cups of water by the cups of lemon.
if x:y=3:5 find the ratio 3×+4y:8x +5y
Answers
Answer:
29: 49
Step-by-step explanation:
Since x:y= 3:5,
[tex] \frac{x}{y} = \frac{3}{5}[/tex]
Cross multiply:
[tex]5x = 3y[/tex]
Divide by 5 on both sides:
[tex]x = \frac{3}{5} y[/tex]
[tex] \frac{3x + 4y}{8x + 5y} \\ = \frac{3( \frac{3}{5}y) + 4y }{8( \frac{3}{5}y) + 5y } \\ = \frac{ \frac{9}{5}y + 4y }{ \frac{24}{5}y + 5y } \\ = \frac{9y + 5(4y)}{24y + 5(5y)} \\ = \frac{9y + 20y}{24y + 25y} \\ = \frac{29y}{49y} \\ = \frac{29}{49} [/tex]
Thus, 3x+4y: 8x+5y= 29: 49.
What is the distance between (-4,1) and (1, -3)?
Answers
Answer:
[tex]\sqrt{41}[/tex]
Step-by-step explanation:
On a Saturday, Saul can cut 4 lawns in 6 hours. If Mitch can mow lawns at the same rate, how long will it take him to mow 9 lawns?
12 hours
12 3/4 hours
6 hours
13 1/2 hours
Answers
Answer:
13 1/2 is your answer.
Step-by-step explanation:
With the same ratio the time taken Mitch to mow 9 lawns will be 13 + 1/2 thus option (D) is correct.
What are the ratio and proportion?The ratio is the division of the two numbers.
For example, a/b, where a will be the numerator and b will be the denominator.
Proportion is the relation of a variable with another. It could be direct or inverse.
As per the given,
Saul can cut 4 lawns in 6 hours.
The ratio of hours to lawns will be as,
6/4
Suppose the time taken to mow 9 lawns to Mitch is x hours.
The ratio of hours to lawns will be as
x/9
Since the rate is the same thus ratio must be the same.
x/9 = 6/4
x = 6/4 x 9
x = 13.5 = 13 + 1/2
Hence"With the same ratio, the time taken Mitch to mow 9 lawns will be 13 + 1/2".
For more information about ratios and proportions,
brainly.com/question/26974513
#SPJ2
A car travels 55 miles per hour
1. The unit rate speed for this car is ___ miles per hour
2. if the car has driven 1/2 (0.5) hours, it traveled ___ miles
3. if the car has driven 1 1/2 (1.5) hours, it has traveled ___ miles
4 If the car has traveled 110 miles, it will take ___ hours
!! No explanation needed please! :) correct answer gets brainlesst !!
Answers
Answer:
1: 55
2: 27.5
3: 82.5
4: 6,050
Step-by-step explanation:
In order to solve the equation below, what would be a valid first step?
4(x+8) =34−2x
A. Simply x + 8 to 8x.
B. Distribute the 4.
C. Subtract x from both sides.
D. Subtract 8 from both sides.
Answers
4x+32=34-2x
4x+2x=34-32
6x=2
X=2/6
X=1/3
For x=4 simplify 2x+(6-3)2
I need help
Answers
Answer:
Step-by-step explanation:
A shop has an offer on jumpers as shown below.
Buy 4 jumpers and get 1 free!
Kara gets 6 jumpers.
After applying the offer, each one ends up costing £8.50 per jumper.
What is the regular cost of one jumper when not in this offer?
Answers
Answer:
Step-by-step explanation:
1/10 + 2.5/10 = 3.5/10 of an hour to make one bracelet. Then change to 20ths so the numerator is a whole number.
Divide your time available by the time it takes to make one.
21
4 = 420= 15 bracelets
7 28
20
Answer:
10.20 regular cost
Step-by-step explanation:
8.50 x 6 = 51 total
51/5 = 10.20
Select all possible solutions for 2x + 7 < 3x - 5.
Answers
Answer:
7<x-5
12<x
x>12
Step-by-step explanation:
3. State if each of the labeled points is a local min, max or
neither.
Is the function even or odd? Explain.
Please explain right I’m giving 100 points in this that means the 2 people Who answers this will get 50 each
Answers
Answer:
(5, 7) is a local maximumFunction is oddStep-by-step explanation:
As we see on the graph:
point (1,2) on the falling section,point (3,3) on the rising section,point (5,7) on the top section,... of the local intervals. therefore only point (5, 7) is a local maximum.
Absolute minimum is - oo, absolute maximum is + oo
A function is even if its graph is symmetric with respect to the y-axis. A function is odd if its graph is symmetric with respect to the origin.The given function is odd as per above definition
A rental car company charges $31 per day to rent a car and $0.13 for every mile
driven. Jocelyn wants to rent a car, knowing that:
She plans to drive 500 miles.
• She has at most $220 to spend.
.
Write and solve an inequality which can be used to determine d, the number of days
Jocelyn can afford to rent while staying within her budget.
Answers
Answer:
The number of days is at most 5 days
= d ≤ 5 days
Step-by-step explanation:
A rental car company charges $31 per day to rent a car and $0.13 for every mile driven. Jocelyn wants to rent a car, knowing that:
She plans to drive 500 miles.
• She has at most $220 to spend.
At most means Less than or equal to $220
The inequality for expressing this = ≤
Hence, the inequality which can be used to determine d, the number of days Jocelyn can afford to rent while staying within her budget.
$31 × d + $0.13 × 500 miles ≤ $200
The inequality is given as:
31d + 65 ≤ 220
Solving further
31d ≤ 220 -65
31d ≤ 155
d ≤ 155/31
d ≤ 5
Therefore, the number of days is at most 5 days
Help!!!! Question below.
Please.
Answers
Answer:
((4 x 16) ÷ 2) - 8
Step-by-step explanation:
There are many ways to solve this equation, but an easy one would be ((4 x 16) ÷ 2) - 8
4 times 16 = 64
64 ÷ 2 = 32
32 - 8 = 24
Hope this helps :)
HELP PLEASE THIS IS HARD-!
Answers
Answer:
12
Step-by-step explanation:
[tex]\frac{2(2)}{2} +2(2)+\frac{2(6)}{2} =2+4+6\\ =12[/tex]
What is the slope of y= -4x-3
Answers
What is the value of 1/2[-8+16-(-2 1/2)]
Answers
Answer:
21/4
Step-by-step explanation:
1/2[-8 +16 - ( -2 1/2)] = 1/2 ( - 8 + 16 + 2 1/2) = 1/2 ( 8 + 2 1/2) = 1/2 * [tex]10 \frac{1}{2}[/tex] = 1/2 * 21/2 = 21/4
-2y - 7y + 8y + y - 7y
Answers
Answer:
-7y
Step-by-step explanation:
-2y-7y=
-9y+8y=
-y+y=
0-7y=
-7y
-2y -7y + 8y +y - 7y
Solution : -7y
Cheyenne bought 60 tickets for rides at an amusement park. Each ride costs 4 tickets, and Cheyenne has been on x rides so far. Write an expression is equivalent to the number of tickets that Cheyenne has left?
Answers
Answer:
x=number of rides taken
y=number of tickets left
60=4(x)+y
Find the value of x.
I need to show my work.
Thank you~~~~~~~~
Answers
Answer:
180-72-72=36
90-36=54
180-54-54=72
72=7x-12
84=7x
x=12
Step-by-step explanation:
which line is parallel to one whose equation is y=5x+7
Answers
it can be any number as long as it has that slope :)
ex. y=5x-24
Explanation: Parallel is like being close to something, it's two lines that are going the exact same way but with different y-intercepts, the part of the equation that controls if the line is straight, slanted, etc. is the slope so to be parallel you need the same slope, so the answer is any equation that starts with y=5x.
The clock shows the time that Ron left his home in the morning. He came home 7
hours and 35 minutes later. What time did Ron come home?
Answers
Answer: 14:35 hrs
Step-by-step explanation:
Missing time that Ron left was 07:00 hrs
Ron left the house at 07:00 hrs. If he arrived back to the house 7 hours and 35 minutes later, you can find out what time he arrived by simply adding the time he left to the time he stayed outside:
= 7 + 7hrs 35 minutes
= 14 hrs 35 minutes
= 14:35 hrs
mr. john says that a new automobile decreases 37 1/2 of its value the first year. At this rate, how much will the first value of a $4568 car drop in the first year?
Answers
Answer:
it will drop to 2855 I believe