In training for a swim meet, Logan swam 750 meters in \large \frac {1}{3} 3 1 ​ of an hour. His swimming partner, Mila, swam \frac {2}{3} 3 2 ​ of Logan's distance in \frac {1}{4} 4 1 ​ of an hour. what is milas average speed

Answers

Answer 1

Answer:

2 km/hr

Step-by-step explanation:

Distance traveled by Logan = 750 m = 0.75 km = [tex]\frac{3}{4}\ km[/tex]

Time taken by Logan = [tex]\frac{1}{3}\ hours[/tex]

To calculate the speed using time and distance, following formula is used:

[tex]\text{Average Speed =} \dfrac{\text{Total Distance}}{\text{Total Time}}[/tex]

Speed of Logan :

[tex]\dfrac{\frac{3}{4}}{\frac{1}{3}}\\\Rightarrow \dfrac{9}4\ km/hr[/tex]

Distance traveled by Mila = [tex]\frac{2}{3}[/tex] of Logan's distance:

[tex]\frac{2}{3}\times \frac{3}{4} = \frac{1}{2}\ km[/tex]

Time taken by Mila = [tex]\frac{1}{4}\ hr[/tex]

As per formula above:

Average Speed of Mila is given as:

[tex]\dfrac{\frac{1}{2}}{\frac{1}{4}}\\\Rightarrow \dfrac{4}{2}\\\Rightarrow \bold{2 km/hr}[/tex]


Related Questions

33 is 90% of what number? Round to the tenths place.

Answers

Answer:

36.7

Step-by-step explanation:

Since 33 is 90% of a number, you can divide 33 by 9 to get 3 2/3. This 3 2/3 is 10% of the number, so multiply 3 2/3 by 10 to get 36 2/3. 36 2/3 rounded to the nearest tenth is 36.7, so there's your answer. Hope it helps!

An earthquake wave travels through 55 km of rock in 25 seconds . Which equation represents the relationship between t, the number of seconds, and d, the total distance the wave travels?

Answers

Answer:

2.2 m/s

Step-by-step explanation:

Step one

Given data

An earthquake wave travels through 55 km

hence distance = 55 km

time taken = 25 seconds

Required

the expression relating t and d

Step two:

we know that velocity is

Speed= distance/time

speed= 55/25

Speed= 2.2 m/s

PLS HELP WILL GIVE BRAINLIEST

ignore the one i marked

Answers

Answer:

im almost postive the one you marked is correct

Step-by-step explanation:

Answer:

The second one

Step-by-step explanation:

When you elevate by 3 you get:

[tex]\sqrt[3]{g}^{3} = g[/tex]

Hope this helps, have a good day

What is 20% less than 18.5?

Answers

Answer:

15.5

Step-by-step explanation:

Answer:

14.8

Step-by-step explanation:

20% less than 18.5 is  14.8

Find p(4) p(x) = 3x - 9

Answers

Answer:

p(4)=3

Step-by-step explanation:

p(4)=3(4)-9=12-9=3

Line u has a slope of 7/9. Line v is perpendicular to u. What is the slope of line v ?

Answers

Answer:

-9/7 bc the perpendicular is the inverse of the former slope

Step-by-step explanation:

I need help on this question

Answers

Answer:

A

Step-by-step explanation:

QUICKKK PLEASE HELP!!!! Q:43c +10d=?????

Answers

Answer:

53d

Step-by-step explanation:

plzzz help answer tyhese

Answers

The slope is m=2 in the first picture. Can be done by rise/run.

The second graph has an undefined slope. Using rise/run would get the run value = 0 and that'd make the slope undefined because the denominator cannot be 0.

First one the it’s undefined and the second one it’s m=1/2

A box of dried fruit has 54 calories in 3 servings. How many calories are there per serving?

Answers

Answer:

18 per serving

Step-by-step explanation:

54/3=18   just divide to find the unit rate

An airplane travels 500 miles an hour.
How long will it take to travel 4.000 miles?

Answers

An airplane travels 500 miles an hour then it will take 8 hours to travel 4.000 miles.

What is the unitary method?

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

An airplane travels 500 miles an hour. We need to find how long it will take to travel 4.000 miles.

We know that

Let t be the time taken by an airplane to travel 4000 miles.

An airplane traveled 500 miles = 1 hour

An airplane traveled in 1 mile = 1/ 500

An airplane traveled in 4000 miles = 4000/500              

                                                             = 8 hour

Thus, It will take the airplane 8 hours to travel 4,000 miles.

Learn more about a unitary method;

https://brainly.com/question/22056199

The table shows the cost to Brenda for her textbooks at her local college. Which description accurately matches the table?
A)New textbooks cost $120 each, and used textbooks cost $40 each. She is
buying 2 new textbooks and x used textbooks.
B)New textbooks cost $100 each, and used textbooks cost $80 each. She is
buying 2 new textbooks and x used textbooks.
C)New textbooks cost $120 each, and used textbooks cost $80 each. She is
buying 2 new textbooks and x used textbooks.
D)New textbooks cost $100 each, and used textbooks cost $40 each. She is
buying 2 new textbooks and x used textbooks.

Answers

Answer:

a

Step-by-step explanation:

120plus2 equals 240 then add 40 for every number on graph

Answer:

a

Step-by-step explanation:

what do you divide (-2/3) with to get 3/10

Answers

Answer:

the equation forms like this

-2/3 divide x =3/10

Solve for  

x

by cross multiplying.

Exact Form:  

x=− 20/9

Decimal Form:

x=−2.¯2

Mixed Number Form:

x=−2  2/9

which dot thing do i put?

Answers

Answer:

arrow to the right no filled in dot

Step-by-step explanation:

the (>) shows you which direction the thing is going

in this situation you just have to simplify the problem

4x+2=10

-2. -2

4x=8

x=2

x>2

Answer:

You would put it on 10 and use the arrow pointing the right with a open dot. (The dot should not be filled in and looks like a bubble.)

Step-by-step explanation:

Michael has finished 25% of an art project that has taken him a total of 4 hours so far. If he continues to work at the same rate, how many hours will it take for him to complete the entire project?

Answers

It will take him 16 hours because 25 is 1/4 of 100% so 4 times 4 is 16. So 16 is your answer :)

Answer:

16 hours of total work time, 12 hours of work not including the original 4 hours

Step-by-step explanation:

25 percent is 1/4

To get to a whole, you need to do 4*4.

That is how many total hours of work time, -4 (the pre-existing 4) you get 12 of added time on top of the 4

What is the value of g?
−5+7g=3g+9
A.) g=−1
B.) g = 1
C.) g=125
D.) g=312

Answers

Answer:

The answer is D

Step-by-step explanation:

Give the other person brainlest

Answer:

d

Step-by-step explanation:

i took the quiz

SOMEBODY PLEASE HELP!! (view picture, math related$

Answers

Answer:

the answer is B

Step-by-step explanation:

A,B youll see the numbers go across

A company has two manufacturing plants with daily production levels of 7x + 19 items and 2x - 7 items, respectively. The first plant production how many more items daily than the second plant? The first plant produces __? More items daily than the second plant.

Answers

Answer:

The first plant produces 5x + 26 more items daily than the second plant

Step-by-step explanation:

First plant = 7x + 19

Second plant = 2x - 7

The first plant production how many more items daily than the second plant?

Subtract items produced by the second plant from items produced by the first plant

= 7x + 19 - (2x - 7)

= 7x + 19 - 2x + 7

= 5x + 26

The first plant produces 5x + 26 more items daily than the second plant.

help me pls it's important

Answers

Answer:

50%?

Step-by-step explanation:

Answer:

55.5%

Step-by-step explanation:

Decrease is negative so It maybe - 55.5%

How would you find x?

Answers

Answer:

A

Step-by-step explanation:

x=7

joe spent $15. he bought 2 cans of oil. abouthow many gallons of gasoline did he buy

Answers

The expression that can be used to determine the total amount of Joe spent on gasoline and oil is 2.85g + 3.15c.

The number of gallons of gasoline he bought is 3.0 gallons.

How to find the expression to determine the total amount of gas bought?

Joe bought g gallons of gasoline for 2.85 dollars per gallons and c cans of oil 3.15 dollars per can.

Therefore, the expression that can be used to determine the total amount of Joe spent on gasoline and oil is as follows:

total amount = 2.85g + 3.15c

where

g = number of gallons of gasolinec = cans of oil

Joe spent 15 dollars . He bought 2 cans of oil . The amount of gallons of gasoline he bought can be calculated as follows:

15 = 2.85g + 2(3.15)

15 = 2.85g + 6.3

15 - 6.3 = 2.85g

8.7 = 2.85g

g = 8.7 / 2.85

g = 3.05263157895

Therefore,

g = 3.0 gallons of gasoline

learn more on expression here: brainly.com/question/29177553

#SPJ1

Can you help with 3,5,6 please Also can you explain how you did 5 please I dont understand well

Answers

Answer:

3) 46 5) 19.5 6) 31.2

Step-by-step explanation:

all the "y" numbers are the product of the "x" numbers being added or subtracted by something. In 5, y=x-1.5

if I have a 40 in a class and get 100% on something thats 40% of my grade. whatsmy new grade PLEASE ANSWER like please please please please answer

Answers

Answer: depends on how your class is weighted, and specifically how many points the thing is, and your point score.

Step-by-step explanation:

i guess 60%? it's too vague

Hmm l can’t figure it out

whats 3(x + 2) = 21?
show work please !!​

Answers

Answer:

x=5

Step-by-step explanation:

[tex]3(x+2)=21[/tex]

[tex]3x+6=21[/tex]

[tex]3x+6-6=21-6\\\\3x=15\\\\\frac{3x}{3} = \frac{15}{3} \\\\x=5[/tex]

Answer:

x = 5

Step-by-step explanation:

You first have to multiply 3 by x and 2, and you would get 3x and 6. 3(x + 2)=3x +6

Then you have to move the 6 to the other side and it will become negative. 3x= -6 +21

Then you subtract 21-6 to get 15. 3x = 15

Then you are left with 3x = 15.

Divide 3 from both sides and you get x =5.

Whoever can answer the MOST with work show will ne marked brainliest.

Answers

Answer:

See the picture below

Step-by-step explanation:

The angle of elevation of a cloud from a point 60m above a lake is 30" and the angle of
depression of the reflection of the cloud in the lake is 60° find the height of the cloud from
the surface of the lake.
(THIS QUESTION IS FROM INDIA PRE BOARD EXAM)​

Answers

Answer:

80 m

Step-by-step explanation:

Answer

answer

Answer

Find the equation of the axis of symmetry of the following parabola algebraically.
y=-3x^2-6
y=−3x
2
−6

Answers

I have no idea sorry
Find the equation of the axis of symmetry of the following parabola algebraically.
y=-3x^2-6
y=−9x-6

REALLY URGENT!!!!! ANSWER FAST!!!!

Answers

Answer:

if am sure it's A

Step-by-step explanation:

5s - (-6s – 10) < 5s + 9 + 5s

Answers

Answer:

see in picture

...........

Follow the directions to solve the system of equations by elimination. 8x + 7y = 39 4x – 14y = –68 Multiply the first equation to enable the elimination of the y-term. Add the equations to eliminate the y-terms. Solve the new equation for the x-value. Substitute the x-value back into either original equation to find the y-value. Check the solution. The solution to the system of equations is (, ).

Answers

Answer:

1/2,5

Step-by-step explanation:

Answer:

1/2     5

Step-by-step explanation:

just got it right on edge

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