Mathematics Middle School

HELP 15 POINT AND WILL MARK BRIANLYEST. Emma said that when you multiply three negative decimals, the product will be positive.
Use these numbers to answer the questions:
-2.5, -3.8, -2.7, 4.5

Part A: Is Emma's statement always true, sometimes true, or always false? Write two equations to support your answer. (10 points)






Part B: Write a rule for multiplying three negative decimals. (5 points)




Part C: Emma changed her statement to say that when you multiply two negative decimals and a positive decimal, the product will be positive. Is Emma's new statement always true, sometimes true, or always false? Write two equations to support your answer. (10 points)

Answers

Answer 1

Answer:

A)Her statement is not correct because a negative times a negative is a positive but if you times it by negative again then it will be negative again not positive

B)(–3) – (–5) = (–3) + 5 = 2

c)Yes she is correct

5 – (–3) = 5 + 3 = 8

(–3) – (–5) = (–3) + 5 = 2

Step-by-step explanation:

Answer 2
answer ( A
explanation: none

Related Questions

Write 4,682.56 in expanded form.
(4 x 1000) + (6 x 100) + (8 x 10) + (2 x 1) + (5 x 0.1) + (6 x 0.01)
(4 x 1000) + (6 x 100) + (8 x 10) + (2 x 1) + (5 x 1/10) + (6 x 1/100)
4000 + 600 + 80 + 2 + 0.5 + 0.06
all of the above
will give brainliest

Answers

(4 x 1000) + (6 x 100) + (8 x 10) + (2 x 1) + (5 x0.1) + (6 x 0.01)

4000+600+80+2+0.5+0.06

Which statement correctly describes the expression (-70)(-6)?

A. Both factors are negative, so the product will be positive.
B. Both factors are negative, so the product will be negative.
C. One factor is positive and one factor is negative, so the product will be negative.
D. One factor is positive and one factor is negative, so the product will be positive.

Answers

Answer: the answer is letter A

Step-by-step explanation:

The answer is A because the factors are both negative

Find the measure of the exterior angle.


Help please I don't know how I am supposed to start.

Answers

Answer:

Step-by-step explanation:

?

t = 50
t + 10 + t + 20 + t = 180
3t + 30 = 180
3t = 150
t =50

Photos attached, please help. Brainliest will be given!

Answers

Answer:

I dont see the photo srry cant help

Step-by-step explanation:

You have not attached a photo. Mate

Different Signs or Same Signs? Sort the expressions.

Click each expression and pick the correct category.


25 + -14

3 + -7

-4 + -9

-18 + 33

-19 + -3

23 + 67

-9 + 4

5 + 3

Same sign, add and keep the sign

Different signs, subtract and keep sign of larger number

Answers

1)11
2)-4
3)-13
4)15
5)—22
6)90
7)-5
8)8

Identify which equations have one solution, infinitely many solutions, or no solution.
3/2x + 2.3 – 1/2x = 4.3 + x
2x + 2/3 = 2x + 4/5 – 4x
17/4 + 4.2y - 9/4 = 2.2y + 6 + 2y - 4
5r + 2 = 6r + 3 – r
-2x + 2 + 4x = 16/5 + 2x - 6/5
3.2p – 2.5 + 2.1p = 5p – 7/2

Answers

Answer:

1. have one solution

2. have many solutions

3. have one solution

4. have one solution

5.have no solution

6. have many solutions

sorry if I'm wrong

in the last election mr rosoff received 47.2% of the votes for mayor if mr rosoff received 8143 l votes how may votes were cast in the election

Answers

Answer:

Je veux juste dire que j'aime ta photo de profil, désolé je n'ai pas pu m'empêcher d'être stupide

Step-by-step explanation:

It should be around 16,286, that’s close to what it is but it’s not the answer

(Giving Brainliest) Photo is below

Answers

Answer: D

Step-by-step explanation:

(2/5 - 1/10) + 2^3 - 23/25

Answers

Answer:

the answer is 7.38

Step-by-step explanation:

Answer:

369/50 if your looking for fraction based if your not then its 7.38

Step-by-step explanation:

I NEED HELP PLZ!!
Runner 3 does not get a head start. He runs 750 meters every 3 minutes. Write an equation to represent Runner 3’s distance y for x minutes.

A. y=3x+250
B. 750x+3
C. 250x+3
D. 250x

Answers

The answer is B why because

Answer:

I think it is D!

Step-by-step explanation:

I'm not exactly for sure so if I'm wrong I'm sorry! But when writing an equation they don't have + or - and my conclusion is if you divide 750 by 3 it equal out to be 250 per minute. But I'm not for sure:(

Simplify: (-1/3+1/9) 4^2+5/18

A)-2/9

B)32/9

C)-59/18

D)73/18

Answers

Answer:

A  -59/18

or

-3/5/18-3.27...

Step-by-step explanation:

First you wanna calculate the sum

(1/3+1/9)×4²+5/18=

-2/9×4²+5/18

Then you wanna evaluate the power

(1/3+1/9)×4²+5/18=

-2/9×16+5/18

Now you are gonna calculate the product

-2/9×16+5/18=

-32/9+5/18

Last you want to calculate the sum

-32/9+5/18=

-59/18

Sry if wrong

Answer is:

A)-2/9

Pardon me if this is wrong <3

hallllllllllllllllllllp

Answers

Answer:

first one is the multiplicitive property of equality, second one is 42/18, third is 63/3 = m/7, and the last one is 11.0 inches

It’s the first option (;

help me please.
(tape diagrams)

Answers

Answer:

A) 13+t =17

Step-by-step explanation:

A pair of parallel lines is cut by a transversal. What are the measures of the two marked angles?
CHOICES

40 degrees and 40 degrees

40 degrees and 140 degrees

65 degrees and 115 degrees

75 degrees and 105 degrees

Answers

Answer:

Let us mark the points R and S on line p, T and U on line q, A and B on line l and C and D on line m.

Suppose the lines p and q intersect the line l at K and L respectively and line m at N and M respectively.

Since, AB is a straight line and ray KN stands on it, then

∠NKL + ∠NKA = 180∘ (Angles in a linear pair)

⇒110∘ + a = 180∘

⇒a = 180∘ − 110∘ = 70∘

Since, line p || line q and line l is a transversal intersecting them at K and L, then

∠TLB = ∠NKA (Alternate exterior angles)

⇒b = a

⇒b = 70∘

Since, line p || line q and line m is a transversal intersecting them at N and M, then

∠CNK = ∠NML (Corresponding angles)

⇒c = 115∘

Since, CD is a straight line and ray ML stands on it, then

∠NML + ∠LMD = 180∘ (Angles in a linear pair)

⇒115∘ + d = 180∘

⇒d = 180∘ − 115∘ = 65∘

Amira needs 24 and StartFraction 3 over 10 EndFraction feet of fencing material to make a fence for her small garden. Which number represents the additive inverse of this number?
Negative 24 and StartFraction 3 over 10 EndFraction
Negative 24
StartFraction 3 over 10 EndFraction
24 and StartFraction 3 over 10 EndFraction

Answers

Answer:-24 3/10

Step-by-step explanation:We have been given that Amira needs  feet of fencing material to make a fence for her small garden. We are asked to find the additive inverse of our given number.

We know that additive inverse of a number is that number, which we add to a number to create the sum of zero.

-24 3/10 yhdynhhdjdhdhdu

three ratios that are equivalent to 4:3

Answers

Answer: 8:6 ,

20:15 , 36:28

Step-by-step explanation:

Answer:

A, C, D

Step-by-step explanation:

A: 4x2 is 8 and 3x2 is 6

C: 4x5 is 20 and 3x5 is 15

D: 4x8 is 32 and 3x8 is 24

hope this helped!

p.s it would be cool if you gave me brainliest.

Definition: The ______ place is the place two to the left of the decimal point in a number.


Term:
WILL GIVE BRAINLIEST

Answers

Answer:

tens place

Step-by-step explanation:

Answer:

tenth place

Step-by-step explanation:

PLZ HELP I DIDN"T UNDERSTAND MY TEACHER PLZ HELP!!

Answers

The answers is B


Explanation is that the slope in answer B the 3 is at the 5

Answer:

A

Step-by-step explanation:

A is the only chart where 5 and 3 connect at an exact point

here is a meme( free of charge)

plz need help and plz show work

Answers

Answer:

could u give us details on what your learning..?

Step-by-step explanation:

If sally reads two books a month , how many moths will it take her to read 20 books?

Answers

Answer:

10 months

Step-by-step explanation:

I hope this is right

Answers

Answer:

Laverska untyska masctera   A.)

Step-by-step explanation:

Unski  :)

What is the equation of this line? Please help I will give extra points and the brain thing.

y=−3x−4/3

y=4/3x−3

y=3/4x−3

y=−3x−3/4

Answers

The equation of this line is y= 3/4x - 3
Because the y intercept is -3 and the slope is rise 3 run 4 making it 3/4. It is a increasing line so it has a positive slope
y=3/4x -3. You find the slope which is rise 3 and run 4 so it’s 3/4. Then the y intercept is already given to you since it’s just where the slope crosses the y axis. Y intercept is -3.

Marty’s dog can run 3 miles in 20 minutes. What is the dog’s speed in miles per hour?
How do you get the answer. Can you please simplify the answer so I can understand, please

Answers

9mph because 20 minutes time 3 is one hour so multiply 3 by 3 to get 9

Answer:

9m

Step-by-step explanation:

easy 20 20 20 each 3 m

which one pls HELP PLSSSS

Answers

Answer:

Its  the first one

Step-by-step explanation:

5(x+y)

-8x

The forst one is the right one

Which scale drawing of a triangle was created by using a scale factor of One-fourth, if the original right triangle has a height of 16 cm and a base length of 12 cm? (The figures below are not drawn to scale.)
A triangle with base 3 centimeters and height 4 centimeters.
A triangle with base 3 centimeters and height 2 centimeters.
A triangle with base 6 centimeters and height 8 centimeters.
A triangle with base 12 centimeters and height 9 centimeters.

Answers

Answer: The First on I believe

It’s A the other guys is right

Help would be much appreciated T^T

Answers

For the translation, I believe it would be:
First; a reflection over the Y axis and the new points would be A(4,4) B(2,2) C(2,-1) D(4,1). (The Y value should be the same and the X axis should be the opposite)
Second; It should be moved three units down to get the points that A’ B’ C’ and D’ lie

I *think* they are congruent. I forgot what it exactly means, but they still have the same shape size and have all the same angles.

Hope this helps.
Nice job keep it up.

In the table, 0 represents the time when the storm started. How much snow was on the
ground then?

Answers

There was 0 snow on the ground

A particular plant root grows 3.5 inches per month. How many centimeters is the plant root growing per month? (1 inch = 2.54 centimeters). (2 points)

Group of answer choices

6.04 centimeters

8.89 centimeters

1.38 centimeters

0.73 centimeters

Answers

Answer:

8.89 centimeters

Step-by-step explanation:

Answer:

8.89 centimeters

Step-by-step explanation:

In order to convert 3.5 inches to centimeters, we must use dimensional analysis.

3.5 inches x [tex]\frac{2.54 cm}{1 in} = 8.89cm[/tex]

Simply multiple 2.54 centimeters by 2.5 inches to find how many centimeters are in 3.5 inches. After doing that you will see that 3.5 inches equals 8.89 centimeters.

Complete the steps to solve the equation.
1/5t + 2 - ____ = 17 - _____
1/5t=______
_____ * 1/5t =______

t=_______

Answers

blank 1 and 2: 2
blank 3: 17
blank 4: 5
blank 5: 5 (17)
blank 6: 85

The complete steps are;

⇒ 1/5t + 2 - 2 = 17 - 2

⇒ 1/5t = 15

⇒ 5 * 1/5t = 5 * 15

⇒ t = 75

What is linear expression?

A linear expression is an algebraic statement where each term is either a constant or variable raised to the power one.

We have to given some steps of equation.

Now, The complete steps to solve the equation are;

1/5t + 2 - ____ = 17 - _____

Subtract 2 from both sides;

⇒ 1/5t + 2 - 2 = 17 - 2

⇒ 1/5t = 15

Multiply 5 in both sides;

⇒ 5 * 1/5t = 5 * 15

⇒ t = 75

So, The complete steps are;

⇒ 1/5t + 2 - 2 = 17 - 2

⇒ 1/5t = 15

⇒ 5 * 1/5t = 5 * 15

⇒ t = 75

Learn more about the linear expression visit:

https://brainly.com/question/26260688

#SPJ2

Which of the following is a simplified form of the expression 5 + 4(2b – 8) + 3b?
13b-29
5b+1
9b-27
11b-27

Answers

Answer:

D.11b-27

Step-by-step explanation:

It is 11b-27,
I got -27+11b
But that’s the same

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