A car travels 20miles be in 1/2 hour at constant speed is traveling at the same speed as a car that travels 30 miles in 3/4 hour at a constant speed.explain or show why

Answers

Answer 1

Answer:

It is true that both cars are traveling at the same speed.

Step-by-step explanation:

Given that car A travels 20 miles over half an hour, we know that this car is traveling at a speed of 40 miles per hour.

Car B travels 30 miles in 3/4 of an hour, let us set up a proportion to solve whether or not Car B is traveling at the same rate as Car A

30 miles / (3/4 hour) = x miles / 1 hour      Cross multiply

30 = (3/4) x                                                   Divide both sides by (3/4)

40 = x

Therefore, both Car A and Car B are traveling at the same rate.

Step-by-step explanation:

Answer 2
it’s true because they speed too high

Related Questions

a purple paint mixture calls for 4 pints of blue paint for every 3 pints of red. how many pints of blue paint do you need,if you use 6 pints of red?

Answers

Answer:

You will need 8 pints of blue paint!

Step-by-step explanation:

At the first the problem shows us the purple paint mixture needs 4 pints of blue and 3 pints of red if the red has 6 pints which is doubled you should also double the blue paint!   Hope this helps please mark the brainliest it means a lot to me and thanks! <3

Answer:

8 pints

Step-by-step explanation:

The purple paint mixture needs 4 pints of blue and 3 pints of red, and if the red paint has 6 pints that is doubled. You should also double the blue paint.

The explains how the answer is 8

now, this katie girl stop deleting my answer-

can someone help me solve this problem? (photo) ​

Answers

Answer:

[tex] - \sqrt{ - (2 \times 2 \times 2 \times 2 \times 3)} [/tex]

[tex]4 \sqrt{ - 3} [/tex]

hope it's helps

answer is B)-4root3

Answer:

[tex]-4i\sqrt{3}[/tex]

Step-by-step explanation:

[tex]\sqrt{-1} =i[/tex]

[tex]\sqrt{a} \sqrt{b} =\sqrt{ab}[/tex]

[tex]-\sqrt{-48} =-\sqrt{-1} \sqrt{48} =-i\sqrt{16} \sqrt{3} =-4i\sqrt{3}[/tex]

what is the answer because i need help with it
Josh will take 10 test in 5 weeks at school how many test will he have taken after 7 weeks

Answers

Answer:14

Step-by-step explanation:

He takes 2 a week so 2 times 7 is 14

Suppose y varies jointly as × and z. What is y when × = 2 and z = 3, if y = 20 when × = 4 and z = 3?

Answers

Answer:

y = kxz

Step-by-step explanation:

(Find K)

20 = k(4) (3)

20/12 = k

k = 5/3

(Find Y)

y = (5/3)(2)(3)

y = 10

I hope this helps.

The algebraic expression that represents twice the sum of some number and 3 is?


n + 2(3)


2(n + 3)


2 + n + 3


2n + 3

Answers

Answer:

2(n+3)

Step-by-step explanation:

The sum to 3 = n+3

That sum doubled (~twice) = 2(n+3)

Answer:

2(n+3)

Step-by-step explanation:

Let's look at the statement:

'twice the sum of some number and 3'

Twice means 2 multiplied by something.

What is that something? It is the sum of some number and 3.

Let's replace the some number with variable n.

So it becomes the sum of n and 3, which translates to n+3.

So you put the two parts together:

2 multiplied by (n+3), rewritten as 2(n+3).

Eugene's grandmother is teaching him how to make her salsa recipe. Each batch of salsa requires 1
4
of a cup of red onions. If they have 11
2
cups of red onions, how many batches of salsa can they make?

Answers

22 batches. 10/2 cups of red onions is 20 batches. 1/2 cups of red onions is 2 batches. 20 + 2 = 22.

pls help asap! i will mark brainliest!

Answers

Answer:

19 or 17

Step-by-step explanation:

Help PLSS Thanks ………………….

Answers

Answer:

3rd option

Step-by-step explanation:

Given z is inversely proportional to (y - 2)² then the equation relating them is

z = [tex]\frac{k}{(y-2)^2}[/tex] ← k is the constant of proportion

To find k use the condition when y = 5, z = 9 , then

9 = [tex]\frac{k}{(5-2)^2}[/tex] = [tex]\frac{k}{3^2}[/tex] = [tex]\frac{k}{9}[/tex] ( multiply both sides by 9 )

81 = k

z = [tex]\frac{81}{(y-2)^2}[/tex] ← equation of proportion

Try 3rd one that’s the best one on there

Find the perimeter. Simplify your answer.

Answers

Answer:

19t+4

Step-by-step explanation:

Perimeter just means add up all the sides

(t+5)+(8t-10)+(t+5)+(9t+4)

= t+8t+t+9t+5-10+5+4

=19t+4

Which expression is equivalent to 1/2(4x+8)? Answer choices: A. x + 4 B. 2x+4 C. 2x+8 D. 4x+4. Please provide explanation as well!

Answers

Just distribute the 1/2
So it would be 1/2 x 4x = 2x
Then 1/2 x 8 = 4
Combine them: 2x+4

Suppose that Juan can choose to get home from work by car or bus.




When he chooses to get home by car, he arrives home after 7 p.m. 14 percent of the time.

When he chooses to get home by bus, he arrives home after 7 p.m. 62 percent of the time.

Because the bus is cheaper, he uses the bus 83 percent of the time.



What is the approximate probability that Juan chose to get home from work by bus, given that he arrived home after 7 p.m.?

Answers

Using conditional probability, it is found that there is a 0.9556 = 95.56% probability that Juan chose to get home from work by bus, given that he arrived home after 7 p.m.

Conditional Probability

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened. [tex]P(A \cap B)[/tex] is the probability of both A and B happening. P(A) is the probability of A happening.

In this problem:

Event A: Arrived home after 7 p.m.Event B: Got home by bus.

The percentages associated with arriving home after 7 p.m. are:

14% of 17%(by car).62% of 83%(by bus).

Hence:

[tex]P(A) = 0.14(0.17) + 0.62(0.83) = 0.5384[/tex]

The probability of both arriving home after 7 p.m. and using bus is:

[tex]P(A \cap B) = 0.62(0.83)[/tex]

Hence, the conditional probability is:

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.62(0.83)}{0.5384} = 0.9556[/tex]

0.9556 = 95.56% probability that Juan chose to get home from work by bus, given that he arrived home after 7 p.m.

You can learn more about conditional probability at https://brainly.com/question/14398287

Natalie walked 35 mile in 12 hour. How fast did she walk, in miles per hour?

a. 3/10 mile per hour

b. 5/6 mile per hour

c. 1 1/5 miles per hour

d. 2 miles per hour

Answers

Answer:

almost 3 mph so I'm guessing (d) is the answer

Step-by-step explanation:

35  ÷ 12 = 2.9 miles per hour

Express 8.4km/min in km/hr

Please answer quickly i have exam tomorrow!!!

Answers

Answer:

540km/hr

Step-by-step explanation:

8.4km/min×60min/km

=8.4/60

=540km/hr

What is the greatest common factor of 15, 35, and 10?

Answers

Answer: The GCF of 10, 15, and 35 is 5.

Would appreciate brainliest <3

Answer:

5.

Step-by-step explanation:

First, we write them in prime factor form, then pick out the common factors.

15 = 3*5

35 = 5*7

10 = 2*5

So the GCF is 5.

What are the possible integer values of x when 3 < x < 7.

Answers

Answer:

4,5 and 6

Step-by-step explanation:

If 3<x that means x>3

If x<7 that means 7>x

possible integer values are 4,5 and 6

A rectangle has an area of 888 square centimeters.
Which of the following could be the rectangle's length and width?

Answers

Answer:

i think 222 for eatch side

Step-by-step explanation:

True or false.The perimeter is the boundary of a shape or an object.

Answers

True.
In geometry, the perimeter can be defined as the path or boundary that surrounds a shape.

If 40 hours is a full work week and any thing over 40 is overtime or time and a half. If u worked 50 hours one week, and 55 hours the second week how much would ur pay check be

Assuming u make 15 dollars a hour for normal pay?

Answers

Answer:

first week would be $750 second week would be $825

If your pay is every two weeks it would be $1575

Step-by-step explanation:

How many bagels can you buy for $50?​

Answers

Answer: about 120??

Step-by-step explanation: pls leave a thanks if helped <3

Answer: 120 bagels

Step-by-step explanation:

$50/$5 = 10 dozens of bagels

10 dozens x 12 = 120 bagels in total

Show that x^2-8x+20 can be written in the form (x-a)^2+a where a is an integer

Answers

Step-by-step explanation:

Let's complete the square

x²-8x=-20

x²-8x+(-4)²=-20+(-4)²

x²+(-4)²=-20+16

(x-4)²=-4

(x-4)²+4

where a is an integer as required

A=-4.5-2. B=0-3.5 a) What are the coordinates of A?
b) What are the coordinates of B?

Answers

Step-by-step explanation:

Coordinates of A are (-4.5, 2).

Coordinates of B are (0, -3.5)

Answer:

Both answers are true

Step-by-step explanation:

Coordinates of A are [-4.5,2]

Coordinates of B are [0,-3.5] { because it lies on the negative side of Y axis}

Cristian comió un 3/8 de pizza y Adriana comió 1/4 de la misma pizza. ¿Quién comió mas?

Answers

Cristian! Si ocupas el resultado es 0.375 (el de cristian)

Task 2: Components of Your Will
Describe the components of your will and how you will specify each one.
Type your response here:

Answers

My will? Wym my will
Are you talking about the will when I die? Or

330,000,000,000,000,000,000,000 mass using a one-digit whole number times a power of 10.

Answers

Answer:

Step-by-step explanation:

330,000,000,000,000,000,000,000 has 22 zeros, so we can immediately say

33x10^22

This should be expressed using just a single decimal point, so we can move the decimal point two more spaces to the left, and add 2 to the exponent:

3.33x10^23

The question states a one digit whole number, so make it 3x10^23, although it seems an insult to the 0.33.  Go with the one you prefer.

Which expression shows the distance on the number line between −7 and 16?

∣∣−7+16∣∣

∣∣−7−16∣∣

∣∣−16−(−7)∣∣

∣∣7−16∣∣

Answers

The expression will be d

Answer:

c

Step-by-step explanation:

Hope this helps

Brainliest pls

Have a great day!

How many solutions does 7( X -5 ) = X +13

Answers

Answer:

x=8 (one solution)

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

7(x−5)=x+13

(7)(x)+(7)(−5)=x+13(Distribute)

7x+−35=x+13

7x−35=x+13

Step 2: Subtract x from both sides.

7x−35−x=x+13−x

6x−35=13

Step 3: Add 35 to both sides.

6x−35+35=13+35

6x=48

Step 4: Divide both sides by 6.

x=8

Answer:

x = 8 (one solution)

Step-by-step explanation:

7x - 35 = x + 13

-x            -x

6x - 35 = 13

     +35   + 35

6x = 48

divided by six on both sides

x = 8

PLS HELP, I WILL MARK U BRAINLIEST!How many natural numbers less than 200 are divisible by the given number.
4 but not divisible by 12.

Answers

Step-by-step explanation:

6, 9, 12, 18, 24, 27, 30, 36, 42, 45, 48, 54, 60, 63, 66, 72, 78, 81, 84, 90, 96, 99, 102, 108, 114, 117, 120, 126, 132, 135, 138, 144, 150, 153, 156, 162, 168, 171, 174, 180, 186, 189, 192, 198

I think that's your answer

Answer:

34

Step-by-step explanation:

numbers divisible by 4 :

4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152, 156, 160, 164, 168, 172, 176, 180, 184, 188, 192, 196, 200

numbers divisible by 12 :

12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192

numbers divisible by 4 but not by 12 :

4, 8, 16, 20, 28, 32, 40, 44, 52, 56, 64, 68, 76, 80, 88, 92, 100, 104, 112, 116, 124, 128, 136, 140, 148, 152, 160, 164, 172, 176, 184, 188, 196, 200

34

Convert 6 fluid ounces into cups.

Answers

Answer:

0.75 cups

Step-by-step explanation:

.75 cups is the answer


pls help! i will mark you brainliest !

Answers

Answer:

24

Step-by-step explanation:

Help!! You have about 4+ hours to answer!! Help!!

Answers

Answer:

I think I'm doing this right?

Step-by-step explanation:

4.3

----

a. 4.3

b. 4.3

c. 4

Answer:

1. 4.30

2. 4.3

3. 4

Step-by-step explanation:

a. hundredths

4.30 is exactly in between 4.29 and 4.31

a. at the top: 4.31

a. at the bottom: 4.29

a. in the middle: 4.30

b. tenths

4.3 is exactly in between 4.2 and 4.4

b. at the top: 4.4

b. at the bottom: 4.2

b. in the middle: 4.3

c. ones

4 is in the middle of 3 and 5

c. at the top: 3

c. at the bottom: 5

c. in the middle: 4

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