The Olympic record for mens 50meter freestyle is 21.3 seconds. a. express the speed in meters per second b. At this rate how many meters could be swum in 1 minute

plz help me ill thank you

Answers

Answer 1
v = s / t
v = 50 / 21.3
v = 2.43....
a) the speed in meters per second is 2.43...
2.43.... * 60 = 145.8
b) in 1 minute he would swim about 145.8 meters
Answer 2
a) V = s / t

V = 50/21.3

V = 2.43
The speed is 2.43 meters per second

b) 2.43 * 60 = 145.8
He would swim at about 145.8 meters in 1 minute

Related Questions

Rhea arrived at the mall at 3:45 pm she spent 45 minutes having lunch and then she shopped for 55 minutes before leaving the mall. How much time disregard spend at the mall

Answers

Rhea spent 100 minutes or 1 hour and 40 minutes at the mall
Final answer:

Rhea spent 1 hour and 40 minutes at the mall.

Explanation:

To find the total time Rhea spent at the mall, we need to add the time she spent having lunch and the time she spent shopping. Rhea spent 45 minutes having lunch and 55 minutes shopping, so the total time she spent at the mall is 45 minutes + 55 minutes = 100 minutes. Since there are 60 minutes in 1 hour, we can convert 100 minutes to hours by dividing by 60. 100 minutes ÷ 60 = 1 hour and 40 minutes. Therefore, Rhea spent 1 hour and 40 minutes at the mall.

Show 2 ways that 6 people can share an 8-segment chewy fruit worm

Answers

Final answer:

Two ways to share an 8-segment chewy fruit worm among six people include equal division with some cutting involved for the leftover pieces, or using a trading system based on individual preferences.

Explanation:

There are multiple ways that 6 people can share an 8-segment chewy fruit worm, but let's consider two simple methods. First, we can look at equal division where each person would get 1 segment, and 2 segments are left over. These could then be halved, with six of the people receiving an extra half-segment each, ensuring everyone gets an equal share.

Another method would involve the ideas of trade and preference. Assume each person has different preferences for segments of the worm, similar to the trading scenario of the siblings with Snickers and Milky Ways. Here, they can negotiate and exchange segments based on their tastes, potentially leaving some with more segments but satisfying everyone's preference. This method requires cooperation and may result in an unequal distribution but can lead to each person being happy with their share.

In Mrs. Diego’s class, 75% of all the students in the class participated in a clean up day. There are 32 students in the class. How many students participated in the clean up day? A. 18 B. 20 C. 24 D. 28

Answers

the answer to this question is c 24.

Answer:

D.28

Step-by-step explanation:

1. Use the graph to make a prediction for the amount of pay received if the sales are $150.
About $70

About $90

About $80

About $100

2. Use the graph to make a prediction of the number of gallons left in the tank if you drove 150 miles.
9

8

11

Answers

Answer:

$90

about 10

Step-by-step explanation:

I took the test

Clara estimates that the length of a hiking trail is 5.75 km. She later learns that its actual length is 6.25 km. What is the percent error in Clara's estimate, to the nearest tenth of a percent? 7.7% 8.0% 11.0% 11.5%

Answers

8.0% is the answer. To solve these problems just do actual length minus her guess which gives you 0.5. Then divide what you got by the actual length. 0.5 divided by 6.25 is 0.08. Multiply that by 100. 0.08 x 100 is 8 which means the answer is 8.0% :)

Answer:

Step-by-step explanation:

8.0%

Kim is 4 years older than one third the age of her sister. Kim is at least 9 years old. How old could her sister be?

Answers

she could be 36 years old
Kim's sister is 36 years old

7=6x-11, -2x-3y=-7
What's the answer?

Answers

Solve x for the first equation and then solve the second equation.

7=6x-11 ---> add 11 to each side
7+11=6x-11+11
18=6x ---> divide by 6
3=x

-2x-3y=-7 ---> substitute 3 for x
-2(3)-3y=-7 ---> multiply -2 and 3
-6-3y=-7 ---> add 6 to each side
-6-3y+6=-7+6
-3y=-1 ---> divide by -3
y=[tex] \frac{1}{3} [/tex]

What to the power of 3 equals 729

Answers

to 6.
hope this helps.
Final answer:

To find what number to the power of 3 equals 729, we can experiment with cubes of small numbers. We quickly identify that 9 cubed (9×9×9) equals 729, which means 9 is the correct answer.

Explanation:

The question is asking to find the number that, when cubed (raised to the power of 3), is equal to 729. This operation is also referred to as finding the cube root.

Firstly, let's investigate through experimentation. We know that cubing of exponentials involves raising a number to the power of three. For instance, 2 cubed is 2×2×2, which equals 8. Now, we're looking for a number that when cubed, results in 729.

If you try to cube smaller numbers, you'll see that cubing 8 gives us 512 and cubing 9 gives us 729. The cube of 9, written as 9×9×9, indeed equals 729. Therefore, 9 to the power of 3 equals 729.

When it comes to numbers that are not as straightforward, a calculator or understanding of cubing of exponentials would be necessary. However, in this case, through simple experimentation and knowledge of cube numbers, we have found that 9 is the number sought.

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Use the commutative property to find the unknown number in the equation
35x70=mx35

Answers

you have to subtract 35 and 70 and you will get the answer
-  35 and 70 ........................

Emerson needs to divide 48 packages of stickers among 6 friends. there are 52 stickers in each package. how many stickers will each friend get? write an equation to solve the problem.

Answers

48packages/6friends = 8packages

Because there are 52 stickers in each package, you have to divide the number of stickers by 8 (number of packages per friend)


8x52= 416 
each friend receives 416 stickers 
52(48 ÷ 6)=416 stickers per friend because 48 packages split by 6 people is 8 and 8 times 52 equals 416

At Al's catering service they often make a large batch of fruit salad. The recipe for the fruit salad requires 2 cups of apples for every 6 cups of strawberries.

Create a ratio table that compares the cups 2 cups of strawberries into shows the relationship between the two.

Answers

Apples:Strawberries
2:6
4:12
6:18
8:24

(Ans so on; Assuming that this is what it means)

if the spinner is spun 60 times, how many times can you expect the spinner to land on 3

Answers

The answer is 12 times

The spinner will land on 3 is 10 times.

What is a spinner?

The probability of the spinner landing on a number is equal to the fraction of the spinner that this number occupies.

Given that, a spinner is spun 60 times, we need to find that,  how many times the spinner to land on 3,

Let us assume that there are 6 equal divisions in the spinner,

So, the chance of landing on 3 for the first time = 1/6

So, for 60 times = 1/6 x 60 = 10

Hence, the spinner will land on 3 is 10 times.

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You earn (4x+12) points after completing X levels of a video game and then lose (2x-5) points. Write an expression that represents the total number of points you have now.

Answers

4x + 12
2x - 5
-----------
6x+7
does this help at all?

if you multiply two decimals that are less than one can you predict whether the product will be less than or greater than either of the factors? Explain

Answers

Yes, because for example if 0.1*01= 0.01 which is less than 1 or 0.2*0.1= 0.02.
Since the decimals are adding up, you will move the total amount of decimal point to the left which makes the product less than the other two factors.

Hope I'm the brainliest!!

The sum of two numbers is 83. If twice the larger number is added to three times the smaller number, the result is 197. Find the numbers.

Answers

THE LARGER NUMBER IS 52, WHILE THE SMALLER NUMBER IS 31.

solution 
let assume the smaller to be y 
let assume the larger number to be x

x + y = 83 ------------1
2x + 3y = 197...........2

using simultaneous equation
make x the subject of formular in equation 1

x=83 - y .................3

substitute equation 3 in equation 2
any where you see x replace it with 83-y in equation 2
2(83 - y) + 3y = 197
open the bracket by multiplying by 2 by the content of the bracket
166 - 2y + 3y = 197
-2y +3y = y
therefore:
166 + y = 197
collect like terms by taking 166 to the lefthand side of the equation
y = 197 - 166
y = 31.

substitute y in equation 2 above
x + 31 = 83
collect like terms by taking 31 to the lefthand side of the equation
x = 83 - 31
x = 52

X represent the larger number which is 52
Y represent the lsmaller number which is 31

The price for a pair of sandals is $49.95 in June. In August the price is 60% less. Which expression gives the price of the sandals in August? A) .40(49.95) B) .60(49.95) C) 49.95 - .40(49.95) D) 49.95 + 0.40(49.95)

Answers

A is the correct answer

The expression gives the price of the sandals in August would be A 0.40 x 49.95

What is the fundamental principle of multiplication?

Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.

Consider the information that the price for a pair of sandals is $49.95 in June.

In August the price is 60% less then;

After getting 60% discount customer need to pay only 40% of the price.

This can be written as:

40% of 49.95

0.40 x 49.95

Therefore, the expression gives the price of the sandals in August would be A 0.40 x 49.95

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miranda says that 30x26 is greater than 20x36 is she correct ?

Answers

Miranda is correct. 30×26=780 and 20×36=720 so 30×26>20×36
no they both equal the same

what is equal to
2x+8-22x=-2

Answers

I think you're asking for what the x value is??

to find this you have to have the variable(s) in this case, x, on one side of the equation.

you need to combine like terms and also subtract 8.

2x+8-22x=-2
-8

2x-22x=-10

Combine like terms:

-20x=-10

Now divide by -20:

x=1/2

Your solution is:
x=1/2

Sania cut two pieces of string for a craft project. The first piece was 4.07 meters long. The second piece was 6.35 meters long.

What would the total length of the two pieces be if she lined them up end to end?

Enter your answer in the box.

Answers

I believe 10.42 if you add try this if its not on their try dividing by 2
 

Answer:

10.42

Step-by-step explanation:

A tank starts out with 860 gallons of liquid. A pump adds liquid to the tank at a constant rate. After 8 hours, the tank contains 1,036 gallons. How many gallons of liquid were pumped per hour?



18

22

176

237

Answers

The answer is 22. if it started with 860 and in 8 hours it has 1036 then you would subtract 1036 - 860 which is 176 and that divided by 8 is 22. hope that helps. :) 

Answer:

B. 22

Step-by-step explanation:

Let x represent number of gallons per hour.

We have been given that a pump adds liquid to the tank at a constant rate. The number of gallons added after 8 hours would be [tex]8x[/tex].

We are also told that the tank starts out with 860 gallons of liquid. So total amount of liquid after 8 hours would be [tex]8x+860[/tex].

The total amount of liquid in the tank after 8 hours is 1,036, so we can represent this information in an equation as:

[tex]8x+860=1,036[/tex]

[tex]8x+860-860=1,036-860[/tex]

[tex]8x=176[/tex]

[tex]\frac{8x}{8}=\frac{176}{8}[/tex]

[tex]x=22[/tex]

Therefore, 22 gallons of liquid were pumped per hour.

The morrows have dinner at Shu's kitchen. The cost if the dinner is $25. What is the final bill if the sales tax is 4%

Answers

25*0.4=10
25+10=35
35$ total
25/4 = 6.25
25 + 6.25 = $31.25

what is the answer of (-1/4 subtracted by 1/2) divided by (negative 4/7)

Answers

The answer would be 5/8 and 0.625 in decimal form.


1/-4 - 1/2 * 7/-4 (divide then multiply)

1/-4 - 1 * 7 over 2 * -4 (multiply)

1/-4 - 7 over 2 * -4 (simplify 1 * 7 to 7)

1/-4 - 7/-8 (simplify 2 * -4 to -8)

1/-4 - (7/-8) (move the negative sign to the left)

1/-4 + 7/8 (simplify brackets)

5/8 (simplify).

Brian a bought 64 fluid ounces of her favorite drink. How many 8 fluid-ounce glasses can she fill with the drink?

Answers

8 fluid-ounce glasses.

4 1/2 divided by 2 3/8

Answers

First you make them mixed numbers:
9/2 ÷ 19/8
Then you flip the second fraction around
9/2 ÷ 8/19
Then you change ÷ to ×
9/2 × 8/19
And then multiply across!
72/38 = 1 34/38 = 1 17/19 (the final answer)
Hope this helps!

The fraction we get after dividing [tex]4\frac{1}{2}[/tex] by [tex]2\frac{3}{8}[/tex] = 36/19.

Here we have to divide,

[tex]4\frac{1}{2}[/tex] by [tex]2\frac{3}{8}[/tex]

Now we can write it into simple fraction we get,

[tex]4\frac{1}{2}[/tex]  =  9/2

[tex]2\frac{3}{8}[/tex]  = 19/8

Since we know that,

Dividing two fractions is equivalent to multiplying the first fraction by its reciprocal. The first step in splitting fractions is to get the reciprocal of the second fraction (reverse the numerator and denominator). Then, multiply the numerators.

Therefore,

 9/2 ÷ 19/8   = 9/2 x 8/19

                     = (9x4)/19

                     = 36/19

Hence,

[tex]4\frac{1}{2}[/tex] by [tex]2\frac{3}{8}[/tex] = 36/19

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Write a description of how a diagram can help you solve 2x40

Answers

well, lets say you were doing a rectangle model it can help you do or check your answer also the answer is 80 because 2 times 4 equals 8 and theres a zero so put those together you get 80 
To groups of 20 so you can count up and not have to time is it you do not know how to type

what the ratio, 75:24 as a decimal

Answers

It would be 3 and 1/8 or 3.125

Edit: just divide

What to the power of four equals 256

Answers

4 Hope this helped ;):):)
A good way to determine this is to use logarithms, the inverse of exponents.
In any given equation, if y=b^x, then logbase(b) of y = x

Due to a property of logarithms, you can also write logbase(b) of y as logy/logb.
The "log" button can be found easily on most modern calculators, so you can follow along too.
Anyways, though, our problem says that 256 = b^4
You can apply logarithms, but an easier way to do this is to square-root 256 twice. 
sqrt256->16
sqrt16->4
4^4 is 256. Let's check, shall we?
4*4 is 16. That *4 is 64. 64 *4 is... 256!
Those are just a couple ways to go about it, though.

What is the measure of ∠C?

Answers

all the angles in a triangle add up to 180 degrees and a right angle is 90 degrees. This leaves 90 degrees and 90-47=43. Angle C=43 degrees

The measure of ∠C in the triangle, ΔCDE, in the given figure, is 43°.

A triangle is a geometric figure with three sides, three angles, and three vertices. The sum of all the angles of a triangle is 180°. It is one of the most elementary geometric figures.

As it is known that the sum of all angles of a triangle is 180°,

∠C + ∠D + ∠E = 180°

∠C = 180° - ∠D - ∠E

∠C = 180° - 90° - 47°

∠C = 180° - 137°

∠C = 43°

Thus, the measure of ∠C is 43°.

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Which graph could be used to show the situation described?

The temperature decreases by 0.5 degrees every hour.

From left to right its A), B), C) and D).

Answers

C. hope this helps :)

The third graph shows the decreases by 0.5 degrees every hour.

What is Graph?

The graph is simply a structured representation of the data. It aids in our comprehension of the data. The numerical information gathered through observation is referred to as data.

In a line graph, the information or data is represented as a series of markers, or dots, and is then connected to one another by a straight line.

Usually, data that varies over time is represented with a line graph.

Given:

The first graph shows the decreases by 10 degrees every hour.

The second graph shows the decreases by 14 degrees every hour.

The third graph shows the decreases by 0.5 degrees every hour.

The fourth graph shows the decreases by 1 degrees every hour.

Hence, the third graph shows the decreases by 0.5 degrees every hour.

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How multiplying with 6 is like multiplying with 3

Answers

If you multiply by three twice, you're multiplying by six once

because 6 is a multiple of 3. easy enough bubbo

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