Help what's the answer to this??

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

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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

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Now, let's solve these exercises!

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 ?

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) .

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

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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!

Answer:

C,How many hours per week do you play football?

Step-by-step explanation:

bcz i knw

Answer:

(-3, 1)

Step-by-step explanation:

The first number 49 or larger that is divisible by 3 is 51 (17 * 3 = 51) so begin at 51 and count by 3's until you get to 95:51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93The first number 49 or larger that is divisible by 6 is 54 (6 * 9 - 54) so begin at 54 and count by 6's until you get to 95:54, 60, 66, 72, 78, 84, 90The first number 49 or larger that is divisible by 9 is 54 (9 * 6 - 54) so begin at 54 and count by 9's until you get to 95:54, 63, 72, 81, 90Now look for the numbers that are in all three lists

Answer:

51 [tex]\frac{1}{35}[/tex]ft²

Step-by-step explanation:

6 5/7 = 47/7

7 3/5 = 38/5

----------------------

a = 47/7 * 38/5

a = 1786/35

Reduce

a = 51 [tex]\frac{1}{35}[/tex] ft²

maaaath. isssss. heeeeellllll.

Answer:

1. 1/36

2. 1

3. 0.001

4. 8

Step-by-step explanation:

Answer:

1. 1/36

2. 1

3. 0.001

4. 8

Step-by-step explanation:

anything to the zero power is equal to one :)

I hope these helped

Answer:

i believe the answer is C

Step-by-step explanation:

Answer:

the answer is 384

Step-by-step explanation:

The answer is 4 square meters

Answer:

i=35

Step-by-step explanation:

105÷3=35

3×35=105

Answer:

i = 35

Step-by-step explanation:

You just do the opposite. In this equation you multiply but you could do the inverse operation which is division. 105 divided by 3 equals 35. You can also check, 35x3 which equals 105. (sorry if this is confusing)

Answer:

I got you!

Step-by-step explanation:

If you calculate the area you must multiply both sides.

The answer may be the following:

Exact Form: 203/18

Decimal form: 11.27...

Mixed number form: 11 5/8

btw take care of yourself and love ur profile picture!

                                               -lei

Answer: I would say B is correct

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

You use the equation A=1/2BH

plug in 6 and 15 and multiply

Answer:

1 2/4 or 1 2/4

Step-by-step explanation:

convert 2 1/4 into an improper fraction.

9/4-3/4=6/4

make 6/4 into a mixed number.

1 2/4

simplify

1 1/2

Answer:

Your answer is 40.7 or 40 and 7/10

Step-by-step explanation:

A = L*w

A= 7.5*5.5

A= 40.7 or 40 and 7/10

Answer:

Positive linear association

Step-by-step explanation:

As the time increases so does the points.

The value of m is 1/3 of equation  |6m-2|=0,  |3(x-2)|=12 of p are 1, -5/3 for equation 1-|3p+1|= -3,  value of x are 7, -17/3 for equation |3x-2|=19 and

value of x are 6, -2 for |3(x-2)|=12

The first equation is |6m-2|=0

| 6m - 2 | = 0

6m = 2

Divide both sides by 6

m = 1/3

The value of m is 1/3.

The second equation is 1 - | 3p + 1 | = -3

- | 3p + 1 | = -4

-3p - 1 = -4

Add 1 on both sides

-3p = -3 or 3p = -5

The value of p are 1, -5/3

3) Third equation is | 3x - 2 | = 19

3x = 21 or -3x + 2 = 19

-3x = 17

Divide both sides by 3

The value of x are 7, -17/3

4) | 3(x - 2) | = 12

3x - 6 = 12 or -3x + 6 = 12

3x = 18 or -3x = 6

The value of x are 6, -2

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ2

Answer:

188.4

Step-by-step explanation:

Answer:

The second choice

The two events are dependent, so the probability of the second event is 1/3. P = 1/12

Step-by-step explanation:

Answer:

The answer is $990. Because 0.36 times 2750=990

Step-by-step explanation:

can i have brainliest?

Answer:

family plan

Step-by-step explanation:

family plan: $19.05/4 = 4.76 per person and individual plan: $10 per person