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

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.

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

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

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 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

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.

What property does this illustrate?

Answers

Answer:

Communitive property i think thats how you spell it

Step-by-step explanation:

Find the sum.

75+(−30)

Answers

Answer:

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

Hope helpful <3

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:

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!

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

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

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

Help please and I will give brainliest

Answers

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

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

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 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

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:

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

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

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:

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

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

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:

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!!

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

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

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

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”

Which shapes are similar but not congruent to shape I?

Answers

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