Answer: A: 4.5 hours
B: No, she won't catch up.
C: 21 miles/hour
IMPORTANT: Please don't just copy the answers from the top and read all the sections down below! You can always learn something new.
Step-by-step explanation (SHOULD READ):
Hello! I hope this will help:
Hector = H
Wanda = W
------------------------------------------------------------------------------
Distance of race = 42miles
[tex]V_{H} = 12miles/hour\\D_{H} = 42miles-18miles=24miles\\V_{W} = 16miles/hour\\D_{W} = 42 miles[/tex]
Vh = Velocity of Hector
Dh = Hector's distance to travel
Vw = Velocity of Wanda
Dw = Wanda's distance to travel
----------------------------------------------------------------------------
Now, let's solve these exercises!
A.Write and solve an equation to find when Wanda will catch up to Hector.
The key words are the bolded words!
What do we have to find?
When Wanda..... Here we can see one thing: time
The word when indicates that we gotta find t (time).
catch up to Hector....
catch up indicates the fact that Wanda's position will be equal to Hector's position (Pos Hector = Pos Wanda)
And to Hector indicates position. Hector's position
So, at point A we gotta find the time that it would take for Wanda to catch up to Hector.
Wanda's speed (velocity) is greater (higher) than Hector's. Which means, after a definite amount of time, Wanda will catch up to him.
How to find the time it would take for Wanda to catch up to Hector?
Well, we gotta solve for time. We know their velocities, and their distance from eachother.
As we know, the formula for velocity is [tex]V=\frac{d}{t}[/tex]
That is Velocity = Distance divided by time.
We know: Distance, Velocity
So, we need to find the difference between our velocities. That way, we can know how faster you are than him, and in this case, Wanda than Hector.
Vwanda-Vhector = 16miles/hour-12miles/hour
The difference between their velocities is 4miles/hour.
That only means, that Wanda, every hour will walk 4 more miles, than Hector, because she's faster, obviously.
Velocity is 4miles/hour.
The distance will be the distance between the 2 children. That's 18 miles.
V = d/t
4miles/hour = 18miles/t
Let's calculate for t.
Multiply t on both sides.
4miles/hour * t = 18 miles * t / t
the time on the right side cancels out.
4 miles/hour * t = 18 miles.
divide 4 miles/hour on both sides.
4miles/hour * t / 4miles/hour = 18 miles / 4 miles/hour
the 4 miles/hour cancels out on the left side.
t = 18 miles / 4 miles/hour
the miles cancel out, remaining just the hour on the right side.
t = 18/4hours
t = 4.5 hours
If Wanda would travel for 4.5 hours, she will catch up to Hector!
And just like that, we solve A.
Let's move on B, shall we ?
B.The question is: Will Wanda catch up to Hector before the race is complete? Explain.
Pretty easy.
So, the question asks if Wanda has enough time to catch Hector, before he actually wins.
We know that Wanda's time to catch Hector = 4.5 hours.
What we need to do?
We need to calculate the time it will take Hector to finish the race, and then we'll go to the next step.
Hector's distance to finish the race = 42 miles - 18 miles = 24 miles.
Hector has to go 24 more miles to win.
His velocity is equal to 12 miles/hour.
V = d/t
12 miles/hour = 24 miles / t
multiply t on both sides, and the t on the right side will cancel out.
12 miles/hour * t = 24 miles * t / t
12 miles/hour * t = 24 miles
divide 12 miles/hour on both sides, and on the left side it will cancel out.
12 miles/hour * t / 12 miles/hour = 24 miles / 12 miles/hour
t = 24 miles / 12 miles/hour
The miles will cancel out, on the right side.
t = 24 / 12 hours
t = 2 hours
Now , to finish point B:
Her distance = 42 miles
Her velocity = 16 miles/hour
Time = Distance/Velocity
Her time = 42 miles / 16 miles/hour
the miles will cancel out on the right side
Her time = 42 / 16 hours
Her time = 2.625 hours to reach the finish.
Let's quickly display their times :
Hector : 2 hours
Wanda : 2.625 hours
Wanda did not have enough time to finish.
Hector finished the race in 2 hours, and Wanda in 2,6 hours (aproximately) .
C.Question: At what constant speed could Wanda travel to catch up with Hector at the finish line? Explain (boring)
At what velocity could Wanda travel at, to catch up Hector and win? That's the question.
Velocity of Hector = 12 miles/hour
Distance of Hector = 24 miles
Time of Hector = 2 hours
------------------------------------------------
Velocity of Wanda = ? (The enough velocity to pass Hector)
Distance of Wanda = 42 miles
Time of Wanda = ? (It isn't 2.6hours because if Wanda walks faster she would have a smaller time)
Wanda's time = Hector's time, because we want to get at the finish exactly when Hector is at it.
Wanda's time = 2 hours
V = d/t
V = 42/2
V = 21 miles/hour
Just like that.
If Wanda would travel on her bike with 21 miles/hour she would've cought up to her friend.
Hi again! I really hope I helped you and I hope I didn't make any mistake, altough I don't I did. Succes!
A baker makes peanut butter cookies and chocolate chip cookies.
1. She needs 2 cups of flour and 3/4 cup of butter to make one batch of peanut butter cookies.
2.She needs 3 cups of flour and 1 cup of butter to make one batch of chocolate chip cookies.
If the baker has 26 cups of flour and 9 cups of butter, how many batches of each type of cookie can she make?
A truck holds at most 20,000 lb. There are 18 boxes on the truck. Each weighs
750 lb. How many additional boxes can the truck hold? Graph the solution.
Show your work
pls help! i will give brainly
Answer:
8 additional boxes
Step-by-step explanation:
750x18=13,500
20,000-13,500=6,500
6,500/750=8.6
However, you can’t just have .6 of a box so you have to keep it 8 boxes.
help please! I will give brainliest to the best answer
1. I roll a standard six-sided die 6 times in a row. What is the probability that the numbers alternate between odd and even?
2. We draw a card from a standard deck. What is the probability that it is a Jack, Queen, King, or it is red?
3. A student applies to four colleges, all of which decide admissions through random lotteries. The probability of admissions to each college is given in the table below. If the student applies to all four of these colleges, what is the probability that he is admitted to at least one of them? Express your answer as a fraction in simplest form.
College 1: 1/7
College 2: 1/8
College 3: 1/9
College 4: 1/10
4. I have two standard, six-sided dice; one is brown, and the other is black. I roll them both. What is the probability that the sum of the numbers that I roll is less than 4?
5. How many 12-step paths are there from A to B, going one unit to the right or one unit up each step? The path must be entirely along the lines of the grid. (image attached below)
Answer:
1. 50%
Step-by-step explanation:
1. You have a 50% chance because it could land on either odd or even.
The temperature is -5 degrees. Name the temperature that would make the sum of the two temperatures 0 degrees.
EXPLAIN YOUR ANSWER
(DO NOT SEND ANY LINKS, YOU WILL GET REPORTED)
Answer: 5 degrees would make the sum of the two temperatures 0 degrees.
Step-by-step explanation: If you add 5 to -5, you will get 0. Think of it almost like 5-5.
if a circle has a diameter of 18 how many square inches is the circle?
Answer:
254.47
Step-by-step explanation:
[tex]\frac{18}{2} <= radius\\\\9^{2} * \pi = 254.47[/tex]
If you have 10 friends and make two equal teams, what fraction do you use?
Its not 10/2 guys
Answer:
Step-by-step explanation:
* THANKS + 5 STAR + BRAINLIEST, ONLY TWO PEOPLE WILL ANSWER THIS QUESTION. I WILL DECIDE WHETHER YOU'VE PROVIDED A DESCRIPTIVE EXPLANATION AND ANSWERING FROM NOW TO AT LEAST AN HOUR LATER. *
please answer the last question below, thank you!
Answer:
38.88
Step-by-step explanation:
You first calculate the area of the entire skillet which is:
8 × 8 = 64
Then subtract the 64 by the area of both veggies burgers:
64 - 25.12 = 38.88
Marvin lives in Stormwind City and works as an engineer in the city of Ironforge. In the morning, he has
3 transportation options (teleport, ride a dragon, or walk) to work, and in the evening he has the same
3 choices for his trip home.
If Marvin randomly chooses his method of travel in the morning and in the evening, what is the probability that he teleports at least once per day?
2/3 (j + 19) = 4
pls help i will give brainly
Answer:
Step-by-step explanation:
Use distributive property: multiply 2/3 by j and by 19.
2/3 j + 38/3 = 4
Subtract 38/3 from 4, which equals -22/3
2/3j = -22/3
Divide 2/3 by -22/3 to isolate j.
j = -11
Hope this helps! :)
Answer:
ANSWER IS -13 *WELCOME*
Brainly me please. Have a good day.
What is the area of ABCD?
Answer:
a
Step-by-step explanation:
Answer:
Its A.
Step-by-step explanation:
Refer to the table shown. If the pattern continues what algebraic expression can be used to find the plants height for any month? What will be the plants height at 12 months?
Answer:Answer is 36 inches high.
Step-by-step explanation:
Each term is 3 times the number of months. So, the
expression is 3n.
3 3(12) n
Replace n with 12.
36
At the end of 12 months, the plant will be 36 inches high.
Write your question here (Keep it simple and clear to get the best answer)
PLEASE HELP ME!!!! THIS IS TIMED PLEASE HELP ME!!!! PLEASE!!!! PLEASE HELP ME!
For those of you that can not see the question it says: In a class of students, the following data table summarizes how many students play an instrument or a sport. What is the probability that a student chosen randomly from the class plays a sport or an instrument?
Answer:
18/28
Step-by-step explanation:
32 ÷ 4 x (16 x 1/2) -2
32 ÷ 4 x (16 x 1/2) -2
= 32 ÷ 4 × 8 -2
= 8 × 8 - 2 = 64-2
= 62
Answer:
62
Step-by-step explanation:
32/4 x (16 x 1/2) -2
8 x 8 - 2
64-2
62
<3
Please help don’t understand
Answer:
176 cm^2
Step-by-step explanation:
Area of a triangle = 1/2(b)(h)
*b means base and h means height*
Since there are four separate triangles here, we have to find the area for each and add each area together.
1/2(8)(16)
1/2(128)
64
We can multiple 64 by 2, because there are two triangles of this same size in the kite.
64(2) = 128
1/2(8)(6)
1/2(48)
24
We can also multiply 24 by two since the kite includes two triangles of this same size.
24(2) = 48
48 + 128 =
solve 5/8 + 3/4 divided by -2/3 - 5/
PLS HELP MEEEE
Consider a rectangle with
length of x2 + 5x - 4 and
width of 2x - 3
a
x^2 + 7x - 7
b
2x^2 + 14x - 14
c
2x^3 + 13x^2 + 7x - 12
d
2x^3 + 7x^2 - 23x + 12
Answer:
Answer is D 2x^3 + 7x^2 - 23x + 12
Step-by-step explanation:
(x^2 + 5x - 4)(2x - 3)
Expand by multiplying each term in the first expression by each term in the second expression.
The easy way would be multiplying the first expression by 2x then set those numbers off to the side.
Then multiply the first expression by -3 and set those numbers off to the side as well.
Then add the numbers you put off to the side together.
This should result in: 2x^3 - 3x^2 + 10x^2 - 15x - 8x + 12
Combine the alike terms together
=2x^3 + 7x^2 -23x + 12
Answer: amongus
Step-by-step explanation:
Abby and her mom are driving on a road trip, and Abby is watching the milepost signs go by. Each hour she writes down which mile marker they
pass and records her results in the table given.
Its linear. I looked it up. ;)
No pic/link just type answer pls.
Answer:
This problem requires you to use the equation for the volume of a cone. The equation is [tex]\pi r^{2}\frac{h}{3}[/tex]. Plug in the corresponding numbers to solve the equation. The equation should be [tex]\pi (3\frac{3}{16})^{2} \frac{9\frac{3}{4} }{3}[/tex]. Simplify the equation to get 103.74 [tex]in^{3}[/tex].
Four friends are told that the average (mean) of their grades for their favorite class is 83.75%.
Kevin got 94%, Elizabeth got 78%, and Katherine got 83%.
Tyler's grade was not revealed. What's Tylers grade?
Answer:
Tyler got 80%.
Step-by-step explanation:
Represent Tyler's average by t.
Then .94 + .78 + .83 + t
-------------------------- = 83.75%
4
Multiplying both sides by 4, we get 2.55 + t = 3.35
so that t = 3.35 - 2.55 = 0.80
Tyler got 80%.
Superior Segway Tours gives sightseeing tours around Chicago, Illinois. It charges a one-time fee of $40, plus $35 per hour. What is the slope of this situation?
A: 80
B: 65
C: 40
D: 35
Answer: D: 35
Step-by-step explanation:
The Y intercept is equal to $40.
Every hour is $35.
Therfore, the slope is 35.
Every 1 hour is = $35
Hope this makes sense.
88 student said they watch TV everyday. This number represents 80% of the students body. What is the total number of students in the student body? And i need you to give me the part,whole,and percent
Answer:
The total number of students in the student body is 110. The part is 88 students, the whole is 110 students, and the percent is 80%.
Step-by-step explanation:
m divided by 3 - 6 = 4
show steps
find what m is
Answer:
m = 30
Step-by-step explanation:
(m/3) - 6 = 4
Add 6 to both sides
m/3 = 10
multiply both sides by 3
m = 30
Teach me how to do this question please thank you!
Answer:
1.63
Step-by-step explanation:
You have to subtract the money given to the price. 5 dollars minus 3.37 is 1.63. Ryan will get 1.63 dollars back.
Which of the following is a measure of variation for a numerical data set ? Plz help
The length of a rectangle is 5ft. less than twice the width, and the area of the rectangle is 33ft². Find the dimensions of the rectangle.
Good answer with steps gets brainliest.
Wrong answers, no effort, and links get 1-2 star.
Telling me to check khan academy and stuff like that gets 2 star.
I want good answers
ty
Answer:
1-2
Step-by-step explanation:
thank you very much
an fun mm mm DMZs
Answer: 24?
Step-by-step explanation:
Cecilia’s rectangle measures 3 1/2 units by 2 1/3 units. What is the area?
PLEASE HELP MEEEEEE!!!!!
Answer
d.11(x+5)
Step-by-step explanation:
Andy's savings to earnings ratio is $0.15:$1. If Andy earns $1200, how much will he save?
PLS HELPP
Answer:
£180
Step-by-step explanation:
1200 times 0.15 = 180
Gordon types 3,136 words in 49 minutes. Find the unit rate.
Answer: Gordon types 64 words per minute.
Step-by-step explanation: Because Gordon is typing 3,136 words in 49 minutes, you would divide the words by the minutes. 3,136 ÷ 49 = 64. So, the units would be 64 words per minute.