Mathematics Middle School

Shawna, Dexter, and Tilana are solving the equation Negative 2.5 (5 minus n) + 2 = 15.

Shawna says, “I can begin by dividing each side of the equation by –2.5 to get 5 minus n minus StartFraction 2 over 2.5 EndFraction = Negative StartFraction 15 over 2.5 EndFraction.”
Dexter says, “I can begin by distributing Negative 2.5 to get Negative 12.5 + 2.5 n + 2 = 15.”
Tilana says, “I can begin by multiplying each side of the equation by Negative StartFraction 1 over 2.5 EndFraction to get 5 minus n minus 0.8 = negative 6.”

Which students are correct?
only Shawna and Tilana
only Shawna and Dexter
only Dexter and Tilana
Shawna, Dexter, and Tilana

Answers

Answer 1

Answer:

All students are correct

Step-by-step explanation:

Shawna, Dexter, And Tilana

Answer 2
All students have the correct answer

Related Questions

what is the expanded form of 4(y+6) ?

Answers

Answer: 4y + 24

Step-by-step explanation: In this problem, the 4 distributes

through the parentheses, multiplying by each of the terms inside.

So we have 4(y) + 4(6) which simplifies to 4y + 24.

will mark brainliest for who can answer these

Answers

Answer:

6. it is a square because all of the outer sides are equal

3. perpendicular because the slopes are reciprocals of eachother and the lines would form 90 degree angles

I know 6. Is a square because it’s outer angles are equal

MODELING REAL LIFE Lightning strikes Earth 1000 times in 10 seconds.

a. How many times does lightning strike in 12 seconds?

Lightning strikes ? times in 12 seconds.

Question 2
b. How many seconds does it take for lightning to strike 7250 times?

It takes ? seconds for lightning to strike 7250 times.

Answers

Answer:

Didn't I answer this for you already?

a) 1200 times

b)72.5 seconds

Step-by-step explanation:

in one second it will strike 1000/10=100 times

so in 12 seconds it will strike 100x12=1200 times

Please answer the blank boxes, and please don't use this question for points. It's my hw and I am trying to get it done by the end of the night so please, only answer the question.

Thank you in advance!

Answers

5(2x-1)
X(1+2+3)
1/2x-3
3xy+4yz
Z(2xy-3y+4x)

......Help plssssssssssss.........

Answers

Answer: 18

Step-by-step explanation:

Answer:

12/100 X 150= 18

18 gallons

HELP ME ASAP!!!!!!!!

Answers

Answer:

9. 2 1/12     10. 3/14

11. D             12. 7/8

13. 5/8 hours  13. 1/12

15. No he is not correct because 1/2 equals 2/4, 1/4 plus 2/4 equals 3/4

16. No he is not correct because 5/6 is 10/12 and its way greater than 6/12

i know you already have the answer but i hope you’re having a great day!! :)

On a day in the month of February, the temperature in Barrow, Alaska, is -21. At the same time, the temperature in Northway, Alaska is -13.
Write an inequality to compare -21 and -13. Which temperature is warmer

Answers

Answer:

In Barrow it's colder than it is in Northway.

Step-by-step explanation:

-21 is less than < -13

****BONUS POINTS: What is the probability of rolling an odd number?

A. 1/4
B. 1/3
C. 1/2
D. 1/6

Answers

The answer is C. You have a 1/2 probability of rolling an odd number.

Answer:

1/2

Step-by-step explanation:

Half of the numbers on a dice are odd

PLZ HELP ME THE QUESTION IS IN THE PIC

Answers

Answer:

Triangular Pyramid

Step-by-step explanation:

Answer:

the first question on the page

There are 180 white lockers in a school. There are 3 white lockers for every 5 blue lockers. How many lockers are there in total in the school?

Answers

Answer:

this does not make sence

Step-by-step explanation:

there are 900

There are 900 yepppppp

20% of your family likes marshmallows melted on top of the sweet potato casserole. If you have 18 people in your family, which proportion could be used to find the number of people who like marshmallows melted on top of the sweet potato casserole?

Answers

Answer:

18 out of 20% gives you 3.6

Step-by-step explanation:

I don’t know if this right or not but 18 out of 20% gives u 3.6

Melvin is struggling with problems that ask him to find the area of shaded regions, such as the one shown below.

Answers

Answer:

B

Step-by-step explanation:

B
















is the correct answer

In a class of 20 students, 14 will get this question right. Based on this rate, what is the probability that the next student will get this question right?

A. 6/20
B. 1/2
C. 7/10
D. 3/10

Answers

Answer:

c

Step-by-step explanation:

HELP ME PLS!!!

Benjamin rolls two 6-sided number cubes. What is the probability that he rolls a sum equal to 5? Use the diagram of the sample space to help you.

a. 1/11

b. 5/36

c. 4/36 or 1/9

d. 2/36 or 1/18​

Answers

The answer for this would be c. 4/36 or 1/9
C is the answer hope this helps

Plsssssssss Help!!!!!!
Sabrina is going to rent a bicycle while on vacation. There are two rental companies she can choose from. The first company charges $10 plus a rate of $2 per hour until the bicycle is returned. The second company’s rental charges can be represented by the equation c=3h+6, where c she represents the total cost and h represents the total number of hours the bicycle is rented.

Answers

Answer:

16

Step-by-step explanation:

If shes out for 3 hours, times 2 by 3, 2x3 then they have a fee of 10 at the beginning then you add that on to 6 then you get 16. ( Sorry if I'

m wrong this is just how I was taught )

Answer:

i would say 3. $15 is your answer

hope this helps :)

i'm so sorry if i'm wrong

Hi I need this asap please help :/

Answers

Answer:i think the answer is 2

Step-by-step explanation:

Find the perimeter FOR BRAINLIEST

Answers

Answer:

56

Step-by-step explanation:

The perimeter is 56 because you added all of the numbers on there which got you to it, it’s really easy

I need help on this assignment

Answers

Can you post a better picture cause I can’t see that..
B 2, 8, 2/8
C 40, 20, 40/20

help i guess? Ik its easy i just got lazy

Answers

I hope this helps have a good day
11 16 and 17 are the answers for them

Look at the two equations:
-3x + 6 = 21
-3x + 6 < 21
Which statement best describes the process used to solve the equations?

Answers

Second one is the correct answer

Answer:

B

Step-by-step explanation:

Because when you divide an equality then you have to flip the sign since your dividing by a negative.

:)

What fraction is greater than -2/3 and less than -1/2

Answers

-2/3= -0.666 (repeating)-1/2= -0.5
Answer is 8 I searched it up

25 points, please help!!!!!!!!!

Which statement best describes the area of Triangle ABC shown below?



It is twice the area of a square of side length 2 units.
It is one-half the area of a square of side length 2 units.
It is twice the area of a rectangle of length 2 units and width 4 units.
It is one-half the area of a rectangle of length 2 units and width 4 units.

Answers

D, “it is one-half the area of a rectangle of length 2 units and width 4 units.”
HOPE THIS HELPS!!!
It is one-half the area of a rectangle of length 2 units and width 4 units.

What do the area of this figure?

Answers

Answer:

155

Step-by-step explanation:

just did it

46 :) added them together

the value of the expression is?

Answers

Answer:

24

Step-by-step explanation:

u can do mental math or use a calculator

the answer would be 24

Please help but only answer if u know it!

Answers

Step-by-step explanation:

[tex] \frac{ {7}^{4} }{ {7}^{ - 3} } = {7}^{4 - - 3} = {7}^{4 + 3} = {7}^{7} [/tex]

Answer:

7 to the power of 4 / 7-3

Step-by-step explanation:

which expression is equivalent to 6(x+2y)+3+4y+5

Answers

Answer:

6x+16y+8

Step-by-step explanation:

In order to solve this problem,

6(x+2y)+3+4y+5

We would first need to expand the brackets

6x + 12y + 3 + 4y + 5

Collect like terms together.

6x+12y+4y+3+5

Add the like terms

6x+16y+8

Therefore, the expression which is equivalent to 6(x+2y)+3+4y+5 is 6x+16y+8

Answer:

6x+16y+8

Step-by-step explanation:

m a t h

What is the range of the following numbers?
12,20,18,25,6

Answers

Answer:

The difference between the highest and the lowest which is

25_6=19

Step-by-step explanation:

Answer:

The range is 19.

Step-by-step explanation:

You subtract the highest number and the lowest. And those two numbers are 25 and 6!

25-6=19

The rabbits ate three fifths of the celery crop in each of 8 gardens. What fraction of celery crop did they eat in all?

twenty four fortieths
eleven fifths
eleven fourteenths
twenty four fifths

Answers

The answer is a
Step by step
Multiplication
8×5 = 40
8×3 = 21
21/40

Can someone pls help me with this I really need it :/

Answers

Step-by-step explanation:

√7 + √7 = 2√7 (irrational)

√7 + (-√7) = 0 (rational)

√7 + 0 = √7 (irrational)

√7 + 7 = 7 + √7 (irrational)

The answer is the 2nd option / -√7.

Answer: The answer is the 2nd option / -√7.

Step-by-step explanation:

what is the total giving brainlist

Answers

Answer:

5.60

Step-by-step explanation:

The answer: 6.46x

Explanation: You add up all the costs for one pizza. Then x would stand for how many pizzas you want to make.
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