Elena ran 20 meters in 5.2 seconds. Priya ran 20 meters in 4.8 seconds.
(Who ran faster? Explain how you know.

Answers

Answer 1

Answer:

Elena

Step-by-step explanation:

5.2 is bigger than 4.8

Answer 2

Answer:

Priya

Step-by-step explanation:

speed=D÷t

speed=Distance÷time

Elena=20÷5.2=3.8m/sec

Priya=20÷4.8=4.2m/sec


Related Questions

f(x)=−10x2−x and g(x)=−2x2−x, find (f−g)(x) and (f−g)(−2)

Answers

Answer:

(f - g)(x) = -8x²

(f - g)(2) = -32

General Formulas and Concepts:

Algebra I

Combining like terms

Step-by-step explanation:

Step 1: Define

f(x) = -10x² - x

g(x0 = -2x² - x

(f - g)(x) is f(x) - g(x)

(f - g)(2) is f(2) - g(2)

Step 2: Find (f - g)(x)

Substitute:                    (f - g)(x) = -10x² - x - (-2x² - x)Distribute -1:                 (f - g)(x) = -10x² - x + 2x² + xCombine like terms:    (f - g)(x) = -8x²

Step 3: Evaluate

Substitute:                    (f - g)(2) = -8(-2)²Evaluate:                       (f - g)(2) = -8(4)Multiply:                        (f - g)(2) = -32

And we have our answers!

Find the volume of figure B. Round your answer to two decimal places.

Answers

Answer:

I wanna say 60,  I just doubled 30

30 x 2 = 60m.  Could be wrong.


2. Mr. Cautious has $10 in his wallet and decides to walk dogs for his neighbors to earn more money. He
charges $4 to walk each dog around the block. How many dogs will Mr. Cautious need to walk to have 130$ in his wallet?

Answers

Answer:

34

Step-by-step explanation:

Given △XPS≅△DNF, find the values of x and y.

Answers

Answer:

x = 3

y = 15

Step-by-step explanation:

If △XPS ≅△DNF, their corresponding sides would be congruent. This implies that:

XP ≅ DN

PS ≅ NF

XS ≅ DF

Given that:

XP = 4y - 3

DN = 57

NF = 51

XS = 17x + 3

DF = 54

Therefore:

XP = DN

4y - 3 = 57 (Substitution)

Add 3 to both sides

4y = 57 + 3

4y = 60

Divide both sides by 4

y = 60/4

y = 15

Also,

XS = DF

17x + 3 = 54 (substitution)

Subtract 3 from each side

17x = 54 - 3

17x = 51

Divide both sides by 17

x = 51/17

x = 3

What's 1+1? PLZ answer.

Answers

Answer:

1 + 1 = 2

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

1+1 =2

What is the value of the expression 14.72 ÷ 3.2

Answers

Answer:

Your answer =

4.6

Step-by-step explanation:

Hope it helps

Answer:

4.6

Step-by-step explanation:

my reason is because the other person   was right PLEASE GIVE THEM BRAINLIEST

Find the small positive integer solution that solves the equation. if there is no solution, type NONE.
(8x)(mod 13)≡4
x=?

Answers

9514 1404 393

Answer:

  x = 7

Step-by-step explanation:

The equation can be rewritten to ...

  8x = 13n +4 . . . . for some integers x and n

  x = (13n +4)/8

For x to be an integer, 13n must be an odd multiple of 4. Since 13 is an odd number, n=4 will do.

  x = (13·4 +4)/8 = 56/8

  x = 7

__

The graph shows a "trial and error" method of solution. Only values of x less than 13 need to be examined.

Which is a correct frost step for solving this equation

Answers

Answer:

you have to post the equation

Step-by-step explanation:

Find the coordinates of point P that lies along the directed line segment AB in a 2:3 ratio given A (-2, 1), B (3, 4).

Answers

Answer:

[tex]P(x,y) = (0,\frac{11}{5})[/tex]

Step-by-step explanation:

Given

[tex]A = (-2,1)[/tex]

[tex]B = (3,4)[/tex]

[tex]m:n = 2:3[/tex]

Required

Determine the coordinates of P

The coordinate of a point when divided into ratio is:

[tex]P(x,y) = (\frac{mx_2 + nx_1}{m + n},\frac{my_2 + ny_1}{m + n})[/tex]

Where

[tex](x_1,y_1) = (-2,1)[/tex]

[tex](x_2,y_2) = (3,4)[/tex]

[tex]m:n = 2:3[/tex]

This gives:

[tex]P(x,y) = (\frac{2 * 3 + 3 * -2}{2 + 3},\frac{2 * 4 + 3 * 1}{2 + 3})[/tex]

[tex]P(x,y) = (\frac{6 - 6}{5},\frac{8 + 3}{5})[/tex]

[tex]P(x,y) = (\frac{0}{5},\frac{11}{5})[/tex]

[tex]P(x,y) = (0,\frac{11}{5})[/tex]

What is the equation for (-3,-14) and (0,-9)

Answers

Y=5/3x-9 is the correct answer in slope intercept form :). The point slope form is y+14=5/3times(x+3)

Serious explination on this one with the answer guys? First to answer gets brainliest!

Answers

Answer:

the answer is -5x + -8x-5/2x^2-3

Step-by-step explanation:

:)

Learning Task 3: Solve the following. Problems. Write your answer in
your notebook
Every Sunday, JB carries water for fish vendors at 22.30 per pan. How
many pails of water did he carry if he earned 382.50 on a Sunday?
2. Rey has 21.25 kes of coffee. He wants to put 0.25 kg of coffee per bag,
How many bags does he need?
Geen has 4 times as much money as her sister. If Gwen has P 604.80.
how much money does her sister have?
4. 4. Joy is planning to buy a new cellphone worth P 14 552.75. She tries
to save P 582.11 a week from her allowance. How many weeks will it
take her to save the amount enough to buy the cellphone?
5. Yesterday, Sallie took a trip to visit some family. She covered a total of
135.75 miles without making any stops along the way, and it took her
exactly 1.25 hours to arrive at her destination. At what average speed
did she arrive?​

Answers

The answer is Rey who has 20 has led

What is the equation of a hyperbola with a = 5 and c = 15? Assume that the transverse axis is horizontal.

Answers

Answer:

[tex]\frac{x^2}{25} -\frac{y^2}{200} =1[/tex]

Step-by-step explanation:

Recall that the equation of  hyperbola centered at the origin with transverse horizontal axis has the general form:

[tex]\frac{x^2}{a^2} -\frac{y^2}{b^2} =1\\and\,\,\,\, with\\c=\sqrt{a^2+b^2}[/tex]

since we know that a = 5 ,and c = 15,we can solve for b:

[tex]15=\sqrt{5^2+b^2} \\15^2=25+b^2\\b^2=200\\[/tex]

then the equation of the hyperbola becomes:

[tex]\frac{x^2}{5^2} -\frac{y^2}{200} =1\\\frac{x^2}{25} -\frac{y^2}{200} =1[/tex]

Y is directly proportional to x when x=540 y=10 calculate the value of y when x=540.

Answers

Answer:

Step-by-step explanation:

Y should still be 10 since x is 540

The exchange rate for 1 dollar is 1.3021 euros

Answers

889.02 you would have to multiply

Answer:

889.021796 (or simplifyed, 889.02)

Step-by-step explanation:

1 USD = 1.3021 EU

so what we do here is multiply 1.3021 and 682.76

1.3021 x 682.76 = 889.021796

The distance between (2, 3) and (6, -2) is

Answers

Answer:

(4, -5) should be the correct answer

Step-by-step explanation:

I hope this helps, please mark brainliest if correct!

For a party, you buy 4 3/8 lbs of salt water taffy. If 150 people are attending, how much salt water taffy does each person get?

Answers

Answer:

..

Step-by-step explanation:

determine the slopes below.

Answers

the first one is 2/3 the second one is 3/2

What is the solution for 2X- 5=7

Answers

Answer:x = 6

Step-by-step explanation:

Answer:

x=6

Step-by-step explanation:

Add  5 to both sides of the equation:

2x -5 = 7

2x -5 +5 =7 +5

Simplify:

2x=12

Divide both sides of the equation by the same term:

2x = 12

2x/2 = 12/2

Simplify again:

x=6

Answer:

x = 6

What is 12% of 1350?

Answers

162 is the answer to your question siskjsskjajanajajajsjskskaiw

Answer:

162

Step-by-step explanation:

2h + (6 + h) + 6 ∙ 2

Answers

3h+18 is the correct answer:)

Answer: 3h+18

Step-by-step explanation:

2h+6+h+12

add like terms (add all the the h’s) which equals 3h and add 6+12 which equals 18 so your answer is 3h+18

The equation of a line is y = 2/3x + 5. What is an equation of the line that is perpendicular to the given line and that passes through the point (4, 2)?​

Answers

Step-by-step explanation:

line that is perpendicular to the given line :

y = 2/3x + 5

m1 × m2 = -1

m1 = the coefficient of x

m1 = 2/3

remember : m1 × m2 = -1

2/3 x m2 = -1

2m2 ÷ 3 = -1

(let m2 = x)

2x ÷ 3 = -1

(cross multiply)

2x = 3 × -1

2x = -3

(divide both sides by the coefficient of x)

x = -3/2

Remember : m2 =x

m2 = -3/2

The line that passes through the point (4,2) ;

( note : x¹ = 4 , y¹ = 2)

m = (y - y1) ÷ (x - x1 )

-3/2 = (y - 2) ÷ (x - 4)

(cross multiply)

-3(x - 4) = 2 (y - 2)

-3x +12 = 2y - 4

(make y the subject of formula )

-3x + 12+ 4 = 2y

-3x + 16 = 2y

(

(divide through by the coefficient of y)

-3x/ 2 + 16/2 = y

-3/2x + 8 = y

HOPE IT WAS HELPFUL

please answer see the image below

Answers

Answer:

64.8

Step-by-step explanation:

total area = rectangle + semi circle

                = (11 x 5) + (1/2 * π * 2.5²)

               = 55 + 9.8

               = 64.8 sq. units

64.8 I believe sorry if I am wrong

If a carton of a dozen eggs cost $3.99 how much would 3 eggs be?

Answers

Three eggs scost 0.9975
Question:
If a carton of a dozen eggs cost $3.99 how much would 3 eggs be?

Answer:

emilio is tiling a countertop with square tiles. Each tile covers 64 square inches. THe total area of the countertop is 5,184 square inches. What is the minimum number of tiles Emilio will need to tile the entire countertop. Use explanation or reported

Answers

The answer would be 81 because if you divide 5184 by 64 you get 81 I think...

Which of the following represent functions that have the same rate of change?

Answers

The answers are A and C.

anybody know the answer?
ive been stuck on this math question foreverrrrrr theres no context they just want a explanation of the answer

Answers

Answer:

count the colors

Step-by-step explanation:

count the green, then the red, then the blue

Please Help me I only have 10 points!!!!!!!!!!!!!
answer this question......

Answers

Answer:

its the 3rd answer

Step-by-step explanation:

IF UR GOOD IN GEOMETRY THIS QUESTION IS FOR YOU !! PLEASE HELP I SUCK AT MATH !

Answers

Answer:

(2,3 is dilated to 8,12 by a scale factor of 4)

Step-by-step explanation:

multiply 2,3 by numbers until it gets to 8,12, once you multiply by 4 you get 8,12 which means the answer is a scale factor of 4

If the Semi Monthly is $4,000
A) How much is the Annual?
B) How much is the Bi Weekly?
C) How much is the Monthly Pay?
D) How much is the Weekly Pay?
E) How much is the Hourly Pay?
Im at a loss on how to answer this I reallyy need help

Answers

Disclaimer- this is all assuming that "semi monthly" means twice a month. if it doesn't, ignore this answer

A- if semi monthly is half a month, then 4 times 2 is 8, and 8 times 12 is 96,000.

B- If there are 4 weeks in a month and 4000$ accounts for half of that pay, then the weekly pay is 2000, making the bi-weekly pay 1000.

C- The monthly pay is 8,000$ because 4,000 x 2 is 8,000

D- The weekly pay is 2,000$ because the monthly pay is 8,000$ and there are 4 weeks in a month

E- I do not know the hours at this job and therefore cannot answer this
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