Mathematics Middle School

A cafeteria worker is wondering how student lunch prices at a high school have changed over time. She researches lunch prices for the years 2000 through 2015 and plots the data in a scatter plot. The best-fit line for the data has the equation y = 0.057x + 1.150, where x is the number of years since 2000 and y is the student lunch price, in dollars.

Determine whether each statement below is true or false based on the equation of the line of best fit. Select True or False for each statement:

The student lunch price was generally increasing between 2000 and 2015

The student lunch price changed by approximately 5.7 cents per year.

The student lunch price in 2015 was approximately $1.15​

Answers

Answer 1
first: true
second:false
third:false

Related Questions

Whoever answers first I will give the name the Brainliest.!

900 +$3,400 +) $16,900 + $16,300 + $4,500 + $1,200 =

Answers

Answer:

43,200

Step-by-step explanation:

Anna spent $42 of her savings on music downloads. if the amount she spent was 30% of her savings, how much savings did she have before downloads

plzzzz help

Answers

42/x = 30/100
Flip to get x on top and multiply 42 by 100. You get 4200 and then div that by 30 to get 140.
She had 140 before downloads
i solved this nd i agree with them^^

PLS HELP ME...
Give five ordered pairs on the graph of y = -0.5x.

Answers

Answer:

(0,0) (-2,1) (-4,2) (-6,3) (-8,4)

Step-by-step explanation:

Hope this helps!

Which of the following expressions represents the phrase "six added to five times a number"?
O6+5x
O6+5+x
O5+6x
o 11 x

Answers

It’s a because 6 is being add to 5 which is being multiplied with x

Which expression best defines a rational number?

A. has a decimal form that can be rounded
B. has a decimal form that cannot be rounded
C. has a decimal form that is terminating or repeating
D. has a decimal form that is nonterminating and nonrepeating

Answers

A for sure because it can be

Rational numbers are terminating or repeating numbers. Therefore, option C is the correct answer.

We need to check from the options which expression best defines a rational number.

What are rational numbers?

Rational numbers: Rational numbers are in the form of p/q, where p and q can be any integer and q ≠ 0. This means that rational numbers include natural numbers, whole numbers, integers, fractions of integers, and decimals (terminating decimals and recurring decimals).

Rational numbers can be easily identified with the help of the following characteristics.

All integers, whole numbers, natural numbers, and fractions with integers are rational numbers.If the decimal form of the number is terminating or recurring as in the case of 5.6 or 2.141414, we know that they are rational numbers.In case, the decimals seem to be never-ending or non-recurring, then these are called irrational numbers.

So, from the definition, we understood that rational numbers are terminating or repeating numbers.

Therefore, option C is the correct answer.

To learn more about rational numbers visit:

https://brainly.com/question/17450097.

#SPJ2

A lost turtle - swimming 13 feet below the surface of the water - begins to ascend at 0.5 foot per second. In hopes of (harmlessly) capturing the turtle, a diver jumps into the water to a depth of 4 feet before descending at a rate of 0.25 foot per second.

a) Write an equation to model the position of the turtle at any given time.



b) Write an equation to model the position of the diver at any given time.



c) After how long will the diver be able to catch the turtle?



d) At what depth will the diver be able to catch the turtle?

Answers

9514 1404 393

Answer:

  a) T(t) = -13 +0.5t

  b) D(t) = -4 -0.25t

  c) 12 seconds

  d) 7 feet

Step-by-step explanation:

a) The turtle starts at -13 feet and increases its elevation relative to the water's surface by 0.5 ft/second. After t seconds, the turtle will be 0.5t feet closer to the surface, so its depth will be ...

 T(t) = -13 +0.5t

__

b) The diver starts at -4 feet and decreases their elevation relative to the water's surface by 0.35 ft/second. After t seconds, the diver will be 0.25t lower than the initial position, so their depth will be ...

  D(t) = -4 -0.25t

__

c) The diver and turtle will be at the same depth when ...

  T(t) = D(t)

  -13 +0.50t = -4 -0.25t

  0.75t = 9 . . . . . . . . . . . . add 13+0.25t

  t = 12 . . . . . . . . . . . . . . . divide by 0.75

The diver and turtle will be at the same depth after 12 seconds.

__

d) That depth will be ...

  T(12) = -13 +0.5(12) = -13 +6 = -7

The diver and turtle meet at a depth of 7 feet.

I will give brainyest

Answers

2 Large Box=6.24

3 Small box=5.04Answer:

0.14

0.13

0.01

0.48 or -1.2

Step-by-step explanation:

Easye as pie

16 ounce is 2.24

24 ounce is 3.12

ok 2.24/16

0.14 price per ounce

for first one

now second one

3.12/24

0.13price per ounce

second one

0.14-0.13=0.01

for last question

2 large boxes=6.24 dollars

each large box=24ounces

2 boxes=48

0.13*48=6.24

6.24 dollars for 2 large boxes

3 small boxes=5.04

0.14 each ounce and 12 each small box

so 12*3=36

36*0.14

5.04

so if the smalle box had 48 ounces it would costs 6.72

2 Large Box=6.24

3 Small box=5.04

-1.2

now into the ounces

6.72-6.24

0.48

0.14
0.13
0.1
0.48
1.2

52
5 halves

−52
negative 5 halves

−25

Answers

Answer:

its the one you have clicked on

Step-by-step explanation:

It’s 5/2 (Answer A) because it is not negative there fore it is none of the others

Can anyone help me out with this question

Answers

Answer:

70

Step-by-step explanation:

The % itself stands for a ratio of 100, so 70% would be 70/100

Answer:

70/100

Step-by-step explanation:

This is because if you break down a percantage, it is just a fraction or decimal. The numerator is 70 because 70/100 = 0.7

0.7 is just the decimal form of the percent "70%"

100) slope and y-intercept , answer ASAP ( I will give extra points)

Answers

Answer:

now this one i don't understand. i got the last one but not this one.

Step-by-step explanation:

A and B are numbers A+B=0. What is true about integers A and B?​

Answers

B and A are a zero because you can’t use those numbers in an equation and get an answer
A and B could both be 0 or they can be the same number but one has to be negative and one has to be positive here are some examples
A= -81
B= 81


A= 12
B= -12

What is the slope of the line through (-4,2)(−4,2)left parenthesis, minus, 4, comma, 2, right parenthesis and (3,-3)(3,−3)left parenthesis, 3, comma, minus, 3, right parenthesis? Choose 1 answer: Choose 1 answer: (Choice A) A \dfrac57 7 5 ​ start fraction, 5, divided by, 7, end fraction (Choice B) B \dfrac75 5 7 ​ start fraction, 7, divided by, 5, end fraction (Choice C) C -\dfrac57− 7 5 ​ minus, start fraction, 5, divided by, 7, end fraction (Choice D) D -\dfrac75− 5 7 ​

Answers

Answer:

-5/7

Step-by-step explanation:

slope = (difference in y)/(difference in x) = (-3 - 2)/(3 - (-4)) =

= -5/(3 + 4) = -5/7

Answer: -5/7

Answer:

-5/7 that is the answer

Step-by-step explanation:

Erica earn money by tutoring and babysitting. She always tutors for 5 hours each week and the amount she babysits changes from week to week. let x be the hours that arica babysitters. Write an expression to show the total numbers of hours erica works each week.
Numbers That you have to use to solve this problem: +,-, . , =, ( , ), x, 5, 8, 13

Answers

Answer: could u put it in a simpler way pls .....

Step-by-step explanation:

This box is a right rectangular prism with a base that has dimensions of 6 m and 7 m. The volume of the box is 378 m3. What is the height of this box?

Answers

Answer:

29.07m³

Step-by-step explanation:

7+6=13

378÷13=29.07m³

Answer: 9

Step-by-step explanation:

i got it right

Simplify the expression by distributing and combining like terms.


HELP ME!!!!!X(

Answers

This is wat i get when i combine like terms 7.6x-1

Let a = 4 and b = 3. Select from the drop-down menu to create a true statement. 2ab+b2 ​ > 3a2– Choose... A. 2 B. 2b C. 4a D. 4b

Answers

Answer:

   the first one is correct

Step-by-step explanation:

Your answer would be La La La

For the function y = 4x – 2, what is the value of the function when x is equal to -3?
14
-14
-10
10

Answers

Answer:

-14

Step-by-step explanation:im in 8thgrade plus this  4x  4 -3   -12 -2=-14 bam easy

plus

-14 I believe tell me if it’s wrong

Read The Question On The Following PNG

Answers

A. 9.42 I think would be the answer

Mary is 21 years old. Her age is 9 years more than 3 times Henry’s age. Which equation can be used to determine x, Henry’s age in years?

HELP ASAP PLEASE

A: 3x + 9 = 21
B: 21 + x = 3(9)
C: 9 + 21 = 3x
D: x + 9 = 21

Answers

Answer:

i think its a

Step-by-step explanation:

Answer:

21 = 9+3x or A

Step-by-step explanation:

the answer is a :)

Which is true about the solution to the system of inequalities shown? y > 3x + 1 y 3x + 1 are solutions. Only values that satisfy y 3x + 1 or y < 3x – 3 are solutions. There are no solutions.

Answers

Answer:

there are you just got to find them

Its A because 3x+1y and the other ones wouldn’t be

David went for a run in his town.
• He ran from his house to the school, which is 1.2 miles.
• Then he ran 3 laps around the school track. Each lap is 0.25 miles.
• Then he ran halfway to the gas station. The distance from the school track to the gas station is 2.68 miles
Finally he ran straight home, which is 0.49 miles.
What is the total distance David ran?

Answers

1.2 plus .75 plus 1.34 plus .49 which is 3.78

does the table below represent a linear or nonlinear function?
​

Answers

Answer:

Yes

Step-by-step explanation:

Answer:

A linear function

Step-by-step explanation:

you dont have to do all of them but if u do u get 5 stars and brainiest but pls help mee

Answers

Answer:

1)m=-6     2)p=-25    3)n=13       4)x=1       5)n=-18      6)r=46       7)=-17      8)x=-30         9)n=49          10)a=33

Step-by-step explanation:

1.m-6 2.p-25 3.n13 4.x1 5.m18

Find the new amount given the original amount and the percent of change. $5; 40% increase The new amount is $

Answers

Answer:

3

Step-by-step explanation:

5$ -40%=3

If you are asking what is 40% of 5 then your answer is 2

Plz and thank you I need help

Answers

Answer:

ummm there is nothing

Step-by-step explanation:

it’s not working right :/

A triangle has one side that measures x, and the other two sides each measure 4 inches less than x. The perimeter is 19 inches.

What is the measure of x?

5
3
9
2

Answers

Answer:

x=9

Step-by-step explanation:

x + x - 4 + x - 4 = 19

3x - 8 = 19

3x = 19 + 8

3x = 27

x = 9

Answer: x=9

Step-by-step explanation:

There are three sides 2 that are x-4 and 1 that is x. The equation would be

x+2(x-4)= 19 so you would simplify to get

X+2x-8=19 then 3x=27 then divide by three to get x=9

There are 5,280 feet in 1 mile. If Riley ran 26,400 feet, how many miles did she run? [Type your answer as a number.]

________ miles

Answers

Answer:

Step-by-step explanation:

5,280=1mile

26,400=26,400/5,280

5miles.

Answer:
Riley ran 5 miles

Step-by-Step:
If in 1 mile there is 5,280 feet and Riley ran 26,400ft we can divide 5,280 and 26,400 to find how many miles she ran. 5,280 / 26,400 = 5. Riley ran 5 miles

am I a loser, if so don't hold back just say it

Answers

Answer:

Loser

Step-by-step explanation:

Answer:

I don't know.

Step-by-step explanation:

I've never met you, so how would I know?

But the real question is. . .

Do you like ice cream?

Pls help me and thank you!

Answers

The answer is x=46 because I know math
x=46 I think I’m not sure tho

PLEASE HURRY THIS IS DUE IN 10 MINUTES AND I AM REALLY CONFUSED!!

There are 104 beads on 13 bracelets. Which rate best represents the relationship between the number of beads and the number of bracelets?


A. 8 beads per bracelets


B. 13 beads per bracelets


C. 8 bracelets per bead


D. 13 bracelets per bead


I WILL GIVE BRAINLIEST WITH THE RIGHT ANSWER!!!

Answers

Answer:

A. 8 beads per bracelet.

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