Mathematics Middle School

Determine whether the two expressions are equivalent. If so, tell what property is applied. If not, explain why.
1. 8 x (4 x 3) and (8 x 4) x 3
2. 17 + 12 and 12 + 17

Answers

Answer 1
1. yes, because pemdas.
2. yes, because commutative property.

Related Questions

plzzz help meh I don't like this

Answers

Answer:

Up top it say 6cm

Step-by-step explanation:

But I can’t really see

16•6 is equal to 96cm

( URGENT PLEASE HELP)!! Jack and his sister Jill have planned their training for running a 5K race. Since Jack is taller than Jill, Jill must take 5 strides for every 3 strides that Jack takes. Construct a table to represent this situation, showing five different ratios of strides.

Answers

Answer:

You make a line graph with Jack going up 5 every stride and Jill going up 3 every stride so the answer is 5/3

Step-by-step explanation:

Answer:

1:6

Step-by-step explanation:

i i devided 5 by 3.

Maths Equations if you solve it right I will give you the brainiest! Don't solve it only for points bc I will report you! if you can't solve it just leave it for someone who can.

Answers

1. 6 is greater than or equal to n
2. 1 is greater than x
3. X is less than or equal to 4
4. 1 is greater than n
5. K is greater than 3
6. -3 is greater than or equal to p
7. -1 is less than a
8. 8 is less an or equal to x
I hope this helps!

12^5-7x+85(5942)/9.3+5 =___

Answers

Answer:

12^5 - 7X + 5051165/93

Help please I’ll give brainliest

Answers

Answer:

a

Step-by-step explanation:

A! Your probability is 3/6 which simplifies down to 1/2

The owner of an audio store received a shipment of portable stereos at a cost of $88.90 each. If he sells the stereos for $152.99 each, what is the percent of markup? Round to the nearest whole percent.

Answers

He would get a profit of 64.09
64.09 or 64% because if you subtract 152.99 from 88.90 you get 64.09 and you round it to 64% because the 0 is under 5 so you lower it

Can somebody please help me out with this. We have to do it point slope form.
[tex]y - y_{1} = m( x - x_{1})[/tex]
​

Answers

Explanation:

The formula y - y1 = m(x - x1) is usually described as the 'point-slope form' for the equation of a line. It is useful because if you know one point on a certain line and the slope of that certain line, then you can define the line with this type of formula and, thus, find all the other points on that certain line.

A number x is between 0 and 1. Which of the following points on the number line below could be the location of −x+3 ?

Answers

C because it would be -x so x would be on the other side of 0 on the number line. Then you would add 3 so you would go 3 spaces to the right giving you point C
C is the correct answer

please please help !!!

Answers

The answer is 5 I am almost positive

                                                 

it’s is definitely number 5

Hey! Please help, I’ll give brainliest.

Answers

I think the correct answer is D. Or B.
C because the genes are what contain your parents features and/or traits

How many liters are equal to 2,396 milliliters? Use the placement of the decimal point when dividing by a power of 10 to help you solve.

2.396 liters
239.6 liters
23.96 liters
23,960 liters

Answers

2.396 which is also a.

Answer:

2.396

Step-by-step explanation:

The units of measurement go like this:

Kilo, hecto, deca, unit, deci, centi, mili

When you move to the right, you move the decimal one place to the right, and when you move left, you move the decimal one place to the right

If you’re changing milliliters to liters (unit), you have to more the decimal 3 times to the left. This makes it 2.396 liters

PLEASE HELP THIS ASSIGNEMNT IS TIMED

Two​ trains, Train A and Train​ B, weigh a total of 417 tons. Train A is heavier than Train B. The difference of their weights is 249 tons. What is the weight of each​ train?

Answers

208.5. What is did is because u said the total weight is 417 I just divided that by two. Hope this helps

The numbers you need are on the picture--

Answers

Answer:

its 0.047

but for an extimation-

0.048

Step-by-step explanation:

I got 0.047 as my answer

Please help ASAP ASAP ASAP asap

Answers

Answer:

2 would be on the top

10 would be on the bottom

1 would be way on the bottom

then the remainder will be 1

2 on the top

10 on the bottom

1 under the 10

the remainder is 1 :)

Izzy deposits any money the team has left at the end of the season into a savings account, where it will remain until next season. This year, Izzy deposited $440 into a savings account that earns 312% simple interest. If the next season starts in 6 months, how much money will be in the account then? Explain

Answers

Answer: $447.04

Step-by-step explanation:

Amount (A) = Simple interest + Principal,

Simple interest = (Principal * rate * time)

A = (P * r * t) + P

Principal (P)= $440

rate (r)= 32% or 0.032 as a decimal

Please help me hurry

Answers

Answer:

B

Step-by-step explanation:

There is a negative correlation in the data set.

Answer:

negative correlation

Step-by-step explanation:

the points form a "straight-line" that goes from the top and the lowers to the bottom. positive correlation would be if the line went upwarda and no correlation is when the dots are scattered around the graph

PLZ HELP ME if u do u will be a life saver :)

Answers

Answer:

1stB = 2nd H

2ndB = 3rd H

3rdB  = 1st H

Step-by-step explanation:

1stB = 2nd H

2ndB = 3rd H

3rdB  = 1st H

As they are right angle triangles and 2 lines are perpendicular.

To find height of any shape we look for perpendicular line this also applies to segments.

Segments as seen below can only be cut off areas of a circle by either a chord touches line as shown second picture, or a secant which is a perpendicular use line . and crosses the line of the circle but is not shown in picture only the chord is.

Secant line still forms a segment but is only used usually with overlapping shapes some which are parallel in geometry solving for tangents or shading.

Answer:

1stB = 2nd H

2ndB = 3rd H

3rdB  = 1st H

Step-by-step explanation:

CAn someone please solve for me, will mark brainliest

Answers

Answer:

I think its 12

Step-by-step explanation:

It’s 12 hopefully this helps

Jamie took a test. She got 31 correct, and 13 incorrect. Find the percentage of incorrect answers to correct answers. Explain with all steps.

Answers

Answer:

final grade:42

Step-by-step explanation:

Given function:

13 of 31..

Subtract the two terms:

[tex]31-13=18[/tex]

Divide 100 by 31:

[tex]100*31=3.22[/tex]

Multiply result by 18:

[tex]3.22[/tex]·[tex]18=58[/tex]

Subtract 100 by 58:

[tex]100-58=42[/tex]

Therefore, Jamie got 42% of his test wrong and 58% would be his final grade..

plz help wit 1 3 4 i

Answers

A C F
i truly hope that answers your questions correctly

I need help with this! (picture added)

Answers

I am not sure but I think it is 10 feet per hour

If you can help with this problem I'll give u brainliest. You can only use each number once and there's no need to give an in-depth explanation, just where each number goes.

Answers

Answer:

a concave lens is exactly the opppostie with outer surfaces  curving inward, so it makes parallel light rays curve outward or diverge. That's why concave lenses are sometimes called diverging lenses. ... The distance from the center of the lens to the focal point is, again, the focal length of the lens.

Step-by-step explanation:

When a number is decreased by 4%, the result is 66. What is the original number to the nearest tenth?

Answers

Answer:

68.8

Step-by-step explanation:  

100% = x number  

96% = 66  

so 100%  

= 68.75  

to the nearest tenth is 68.8

68.8 is the correct answer.

HEY THERE PLZ HELP WITH THE EQUATION!!! THANKS IF U ANSWER
Suppose that a phone that originally sold for $800 loses of its value each year after it is released. After 2 years, how much is the phone worth? Write an equation for the value of the phone, , years after it is released.

Answers

Answer:

V=800-Y

V=Value

Y=years

please help me ..................................................

Answers

Answer:

D or 229,613 cm cubed

Step-by-step explanation:

V = π x r^2 x h  (formula)

V = π x 15^2 x 325  (plug the numbers in)

V = π x 225 x 325  (simplify)

V = 3.14 x 225 x 325  (round π to 3.14)

V = 229,612.5 cm cubed which can be rounded to 229,613 cm cubed

I Believe that your answer might be D

A rectangular prism is 4 inches long,3 inches wide and 8 inches tall. Eli packs the prism with unit cubes to find the volume. Abby uses formula to find the volume.

Answers

hope this helps :)

brainliest?

I need some pints but glad he/she helped

Find the measure of each angle.

Answers

Answer:

10 5 30

Step-by-step explanation:

God bless brainiest to right answer

Answers

Answer:

The answer is 3

Step-by-step explanation:

The answer your looking for is 3

Im trying to do IXL and I dont understand the way my teacher teaches (ironic right?)
Can you please help?
the points (-9,-3) and (-2,r) fall on a line with a slope of 1/7. What is the value of r?
If its not right im gonna report you

Answers

Answer:

R = -2

Step-by-step explanation

-9, -3 is the first point.

A slope of 1/7 means that for every one unit that "rises" it will have a "run" of 7 units.

-9 - 7 = -2

-3 - 1 = -2 (r)

with a slope of 1/7, (-9, -3) connects to (-2, -2)

Pls mark me brainliest if right thank you

I need help, please don't do it for the points.

Answers

Answer:

3 feet

Step-by-step explanation

times them all by 4 and you get the fomual

Answer:

3 ft

Step-by-step explanation:

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