Mathematics Middle School

Jessica ran on the track team at her school. She finished a 200-meter race in 54 seconds.

1. What was Jessica's average speed, in meters per second, for the 20-meter race?

Jessica ran in a 50-meter race next. On this shorter distance, Jessica's speed was 1 meter per second faster than her speed in the 200-meter race.

How many seconds did it take Jessica to complete the 50-meter race?

Answers

Answer 1

Answer:

I'm not sure but I think its 54 meters per second

Related Questions

Select all the equations that can represent the question: "How many groups of 45 are in 1?"

1. ?·1=45

2. ?·45=1

3. 45÷1=?

4. 1÷45=?

5. 1·45=?

Answers

Answer:

number 3 (45)

number 5(45)

number 1 (45)

#1-45
#2- 1
#3 45
#4-0.2
#5-45

Find the sum.

75+(−30)

Answers

Answer:

[tex]75 + ( - 30) \\ = > 75 - 30 \\ = > 45[/tex]

Hope helpful <3

Which shapes are similar but not congruent to shape I?

Answers

The 4th one is the answer
Shape 4 is the answer

PLEASE ANSWER ASAP! NEEDED NOW!

Select ALL correct answers.

Which values are part of the solution set based on the result of the inequality?

-4x + 24 < -2x + 2

Answers

Answer:

x is any number greater than 11

Step-by-step explanation:

Ok I’m done. Thank to me plz :>

Please help me! I can't figure out the answer!

Answers

The answer is 0-4+6
0 - 3.33 + 2 = -1.33
Hopefully this helps!!

Which question can be represented by the equation 4÷27=?

1. How many 2/7s are in 4?

2. What is 4 groups of 2/7?

3. What is 2/7 of 4?

4. How many 4s are in 2/7?

Answers

Answer:

I think number 4is the answer.

I believe number one

ill give brain if u give me brain 2

Answers

Answer: 1 brain

Step-by-step explanation:

If one person has a brain, the number of brains they have, x, is 1.

Then, upon giving a brain to another person, x decreases by 1, becoming 0.

Then, when given a brain, x increases by 1, settling at 0.

Hope it helps :)

[tex]_{lol}[/tex]

Answer:

Meaning don't get you please

The box plots show the weights, in pounds, of the dogs in two different animal shelters.

Weights of Dogs in Shelter A
2 box plots. The number line goes from 6 to 30. For the weights of dogs in shelter A, the whiskers range from 8 to 30, and the box ranges from 17 to 28. A line divides the box at 21. For shelter B, the whiskers range from 10 to 28, and the box ranges from 16 to 20. A line divides the box at 18.
Weights of Dogs in Shelter B

Which is true of the data in the box plots? Select three choices.
The median weight for shelter A is greater than that for shelter B.
The median weight for shelter B is greater than that for shelter A.
The data for shelter A are a symmetric data set.
The data for shelter B are a symmetric data set.
The interquartile range of shelter A is greater than the interquartile range of shelter B.

Answers

Answer:

A. The median weight for shelter A is greater than that for shelter B.

D. The data for shelter B are a symmetric data set.

E. The interquartile range of shelter A is greater than the interquartile range of shelter B.

Step-by-step explanation:

ty for the ptsss

Answer:

A. The median weight for shelter A is greater than that for shelter B.

D. The data for shelter B are a symmetric data set.

E. The interquartile range of shelter A is greater than the interquartile range of shelter B. ✔ \^o^/

Step-by-step explanation:

Which is the larger value below?
A)2.5×10⁴
B)3×10³

Answers

Answer:

A)2.5×10⁴

Step-by-step explanation:

A)2.5×10⁴= 25000

B)3×10³= 3000

Answer :
A

Explanation :
2.5 x 10(4) = 25000

3 x 10(3) = 3000
So A is larger

Please explain as well!

Answers

Answer:

For the first one it's 8.25 and the second one is 7.625. I found this by dividing the cost to the sandwich to find the unit rate. (Does that help?)

Answer:

I do know the first one is 8.25 but I'm not sure the second one.

(Also, if anyone see this answer, can any of you guys go answer a question I have?) Thx!

please do question number nine. PLEASE SHOW WORK!! will give brainlest!!

Answers

Answer: 1.25

Step-by-step explanation:

brainliest me

4:3, 2=1,25
That’s my answer hope is correct

Help please and I will give brainliest

Answers

I think it’s b
Sorry if I’m wrong!
Answer: D
the domain is repeating

help if you know pls

Answers

Answer:

c. 16/35

Step-by-step explanation:

2/5 divided by 7/8

2/5 x 8/7

stay change flip

The answer is c. 16/35

9.6 + 12 3/4 + 7 3/20 +5.5 + 14.5 =

Answers

Answer:

49.5

Step-by-step explanation:

add in place value, and then divide. Hope this helps! Add like terms first.

Answer:

49.5

Step-by-step explanation:

Identify the slope - eighth grade math

Answers

Answer:

-11 and (0,6)

Step-by-step explanation:

Slope is given in the equation y= mx + b, where m = slope and b = y-intercept

Slope = -11

B = (0,y-intercept) = (0,6)

-Chetan K

it’s d ! -11 is your slope since its next to the x and your y-intercept is 6 aka b in y=mx+b

Please help with my math!

Answers

Answer:

The function is linear.

Step-by-step explanation:

This is because the ball is y = mx + c form.

Hope this helped.

If it didn't, please reply.

the answer is c. let me know if you need further explaining.

What property does this illustrate?

Answers

Answer:

Communitive property i think thats how you spell it

Step-by-step explanation:

Please explain I am very confused!

Answers

Answer:

42°

Step-by-step explanation:

Altitude of an isosceles triangle divides it vertex in equal angles

so ∠ABD = ∠PBC = 48/2 = 24

In ΔABC sum of angles = 180 and ∠A = ∠C

48 + A + C = 180

2A = 180 - 48 = 132

A = 132/2 = 66 = ∠C

As PB = PC  ---> ∠PBC = ∠PCB = 24

∠ACB = 66 = ∠PCD + ∠PCB

66 = ∠PCD + 24

∠PCD = 42

Geometry is kinda hard but use the homework app that your on and it will give the best answer

PLEASEEEEE HELPP( look at picture )

Answers

Answer: Alright i know exactly how to do this :) i need ur help though it's been a bit since i did this the types they are asking for what are they?

I need a multiple choice otherwise i dunno how to help with identifying them

The math is simple tho

16x-2=15x+4

add 2 to -2 to elimate itself add 2 to +4 =6

16x=15x+6

we need x by itself subtract 15x from itself and then 16x

1x=+6 = x is 6

The rest go the same-

Step-by-step explanation:

ILL GIVE BRAINEIST TO WHOEVER ANSWERS

Answers

Answer:

Im not sure but i would go with my guts if i were you:)

Step-by-step explanation:

Answer: The answer is A) (0, 3.5). I hope my answer is very helpful to your own question about the graph of the linear equation that passes through the given point, please mark me as brainliest, and have a great rest of the day! :D

Sincerely,

Jason Ta,

The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.

Step-by-step explanation:

Halee set up a lemonade and cookie stand at the end of her street. She is selling lemonade for $0.25 per cup and cookies for $0.25 each. She sells 15 cookies and 35 cups of lemonade. Her total sales can be represented by the expression shown.

0.25(35) + 0.25(15)

Use the commutative property to write an equivalent expression.
A) 0.25(15 + 35)
B) 0.25(15) + 35
C) 0.25 + 35 + 15
D) 0.25(15) + 0.25(35)

Answers

Answer:

A!!

Step-by-step explanation:

The awnswer is is A because if they both have parentheses you put the smallest number first then put the big number add the parentheses

Question 11 (True/False Worth 1 points)

(04.02 MC)

The table below shows the number of wafers in different numbers of packs:


Number of Packs Number of Wafers
2 16
3 24
4 32
5 40


Is this true or false? The numbers in the table represent a proportional relationship.
True
False

Answers

True. These answers show a relationship because you add eight every time the pack goes higher.

Answer:

True. hop it helps you out :)

Step-by-step explanation:

Help please?! I don't really know what the right answer is

Answers

Answer:

the answer is x=1

Step-by-step explanation:

-6x+10=4x+20

10x=10

x=1

The answer is X it’s equal 1

Please help me and I will give the brainliest. Answer correct plsssss help me

Answers

The answer is B because when u fit it in with the table it works out
it is b because once you insert it, it fits in the mathematical table

Determine the length of the line segment. Round your answer to the nearest tenth of a unit

Answers

Like of segment being r, calculated in the picture is the length
4,2













Ssessseeekekemeer

I will give brainly if you answer correctly. Plssssss I need help right now.

Answers

Answer:

D

Step-by-step explanation:

(4925-6550)/(2-1)=-1625

slope= -1625

6550=-1625(1)+x

x=8175

y-intercept= 8175

Ddddddd I think I'm pretty sure that it's d

Could somebody please help me find the answers for 'x' for these pictures?
**Please let me know which one you solved along with the answer**

Answers

Answer:

Pic 1: [tex]x=31[/tex]

Pic 2: [tex]x=20[/tex]

Step-by-step explanation:

Picture 1:

[tex]2x+x-3=90\\3x-3=90\\3x=93\\x=31[/tex]

First, add the 2x and x together for 3x

Then add 3 to both sides of the equation

Finally, divide each side by 3.

Picture 2:

[tex]7x+x+20=180\\8x+20=180\\8x=160\\x=20[/tex]

First, add 7x and x together for 8x

Then, minus 20 from both sides of the equation

Finally, divide each side by 8.

Step-by-step explanation:

First picture

We can make an equation with this

2x+x-3=90

3x=93

x=31 degrees

Second picture

We can make and equation

7x+x+20=180

8x=160

x= 20

Express 1.19 as a percent.
I am kind of stuck on this one and I need help.

Answers

Answer:

19/100

Step-by-step explanation:

Answer: 119%

Step-by-step explanation:

So what you want to do is you need to multiply the 1.19 by 100. Which from what I know that’s all you need to do to find your answer.

Write the linear equation in slope-intercept form.
2x + y = 17

Answers

Answer:

y=-2x+17

Step-by-step explanation:

isolate the y and bring over the x so subtract 2x from both sides to get y=-2x+17

2x+y=17
y= - 2x+17
This is the answer “y= -2x+17”

i am timed pls quick if you actually know the answer

Answers

Answer:

D)

Step-by-step explanation:

4 3/5 × 3 =

= 4 × 3 + 3/5 × 3

= 12 9/5

= 12 + 5/5 + 4/5

= 12 + 1 + 4/5

= 13 4/5

Answer: D)

The correct answer is A
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