giving brainliest for whoever has the most descriptive answer and reasoning for this question. (+five stars)
Answers
Answer:
All properties that were used to simplify the following problem:
1. commutative property of multiplication
2. multiplicative inverse 3. multiplicative identity
What is commutative property of addition?
The commutative property states that an expression of the form (A + B) can be solved as (B + A) by an addition operation that does not change the end result.
The commutative property of addition says that it doesn't matter how we add two numbers, the result of the addition would be same.
For two numbers x and y, we have: x + y = y + x
Thus, if we take 3 numbers as a,b and c;
a + b + c = b + a + c = b + c + a = a + c + b = c + a + b = c + b + a
We have been given an expression;
2/7 • 53 • 7/2
53 • 2/7 • 7/2
53 • 1
53
Then all properties that were used to simplify the following problem:
1. commutative property of multiplication
2. multiplicative inverse
3. multiplicative identity
Learn more about properties of addition here:
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Answer:
b
Step-by-step explanation:
I think I remember how to do this I don’t know but yes it’s is b
Related Questions
A $90 flannel shirt is on salle for 30% less for fall shoppers. What is the sale price of the warm winter flannel shirt?
Answers
Answer:
The sale price of the flannel shirt is $63.
Marna thinks that about 35% of her mail is junk mail. She gets about twice as much regular mail as junk mail. Is she correct? Explain.
Answers
Step-by-step explanation:
70 percent and 35 is more than enough
Explanation:
what 0.1315 with a bar over all numbers
Answers
Answer:
Step-by-step explanation:
0.1315 with a bar over all numbers means that the pattern of digits under the bar repeats without end. So the number is 0.1315131513151315131513151315....... etc
There is a formula to kind of simply this but I do not think that is what you are asking for.
Answer:
[tex]\overline{0.1315}=\frac{1315}{9999}[/tex]
Step-by-step explanation:
The trick is that because there are 4 digits being repeated infinitely, then this is equivalent to 1315/9999 because of the four 9s.
Can anyone solve this?
Answers
1/2 × (23+15 ×11)
1/2 × (38 ×11)
1/2 × (23+15 ×11)
1/2×418
209ft²
Answer:
Option C)
Step-by-step explanation:
[tex]A=\frac{(23-15)(11)}{2} +(15)(11)[/tex]
[tex]A=44+165[/tex]
[tex]A=209ft^{2}[/tex]
Hope this helps
OMG PLEASE HELP MEEEE I NEED TO GET MY GRADE UP
Answers
section one - simplify
E - 35
I - 51
A - 168
Y - 18
T - 140 (I couldn’t tell if the last symbol was addition or division! This is if it’s addition.)
E - 7
P - 19
_____
section two - simplify
A | 6
T | 16
D | 0
W | -2
Sorry if any are incorrect. The image is blurry and this was rushed. Hope this still helps!
You collect $20.92 for selling 4 video games and 2 cellphones on a website. Your friend collects $23.44 for selling 4 video games and 3 cellphones on the website. How much do you collect for each video game?
Answers
Answer: D
Step-by-step explanation:
x = video games
y = cellphone
Equation: (1) 4x + 2y = 20.92
(2) 4x + 3y = 23.44
_________________
y = 2.52
4x + 2y = 20.92
4x + 2(2.52) = 20.92
4x = 20.92 - [ 2(2.52) ]
4x = 15.88
x = 3.97
Amount collected for each video game is option D. $3.97.
What are Linear Equations?Linear equations are equation involving one or more expressions including variables and constants and the variables are having no exponents or the exponent of the variable is 1.
Let x be the amount got for selling one video game and y be the amount got for selling cellphones.
You collect $20.92 for selling 4 video games and 2 cellphones on a website.
4x + 2y = 20.92
4x = 20.92 - 2y
Your friend collects $23.44 for selling 4 video games and 3 cellphones on the website.
4x + 3y = 23.44
4x = 23.44 - 3y
Equating both the equations,
20.92 - 2y = 23.44 - 3y
Simplifying,
y = 2.52
Substituting y = 2.52 in 4x + 2y = 20.92,
4x = 15.88
x = 3.97
Hence the amount for selling one video game is $3.97.
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helpppp fasttttttttt pleaseeeeeeeee
Answers
Answer:
4(x-1)+9=17
Step-by-step explanation:
3(-2x+1) + 5 = 3x-4-5x
expand
-6x + 3 + 5 = 3x-4-5x
-6x + 8 = -2x - 4
add 2x to both sides to put all x values + coefficients on one side
-4x + 8 = -4
subtract 8 from both sides to isolate x and its coefficient
-4x = -12
divide both sides by -4 to isolate x
x = 3
plug x=3 into each option to see if it works
1. 5(3+3)-4 = 30-4 = 26 != 10
2. 2(3+1) = 8 != 4
3. 4(3-1)+9 = 17 = 17
4. 4(3)+7 = 19 != 3+8 = 11
Find all the solutions to z^4 = -4 in complex numbers.
The complex numbers should be a+bi, where a and b are real
Answers
Answer:
z = 1 - i
z = 1+i
z = -1 - i
z = -1 + i
Step-by-step explanation:
I think?
CAN SOMEONE HELP ME PLEASE
Answers
Answer:5 over 8 hope this helps you.
Step-by-step explanation:
i needd help with this answer
this is an 10 points but it gon say 50 bc yall are spliting
Answers
Answer:
we 10 points because you are vb and your classmate have 50 point because their bright
Answer:
I think it's A.
Step-by-step explanation:
Spheres have no faces, sides, or verticles. this saying/fact is from a website https://flexbooks.ck12.org/cbook/ck-12-middle-school-math-concepts-grade-7/section/10.1/primary/lesson/classification-of-solid-figures-msm7/#:~:text=A%20sphere%20is%20a%20solid%20figure%20that%20has,has%20one%20face%2C%20but%20no%20edges%20or%20vertices.
proportional or not propotional?
Answers
In the table, we see a rate of change of 5 when multiplying by the bag of screws to get the price:
2 • 5 = 10
4 • 5 = 20
7 • 5 = 35
Because all of the equations are true, we know the relationship between the number of bags of screws and the price is proportional.
Answer: proportional
Step-by-step explanation:
if you divide 10 by 2 you get 5.
since 4 times 5 is 20 and 7 times 5 is 35
the table is proportional since there is a set rate of change
* THANKS + 5 STAR + BRAINLIEST, ONLY TWO PEOPLE WILL ANSWER THIS QUESTION. I WILL DECIDE WHETHER YOU'VE PROVIDED A DESCRIPTIVE EXPLANATION AND ANSWERING FROM NOW TO AT LEAST AN HOUR LATER. *
please answer the last question below, thank you!
Answers
Answer:
38.88
Step-by-step explanation:
You first calculate the area of the entire skillet which is:
8 × 8 = 64
Then subtract the 64 by the area of both veggies burgers:
64 - 25.12 = 38.88
What is the fewest number of people surveyed if exactly 93.6% of people completed a survey?
Use the whole numbers 0 through 9, at most one time, to fill in the boxes to create an accurate
number line.
Answers
Answer:
Step-by-step explanation:
7
the percentage of people that finished the survey is 93.6%, given.
this percentage as a fraction is p, (being the people) = 93.6/100, so, p = 93.6/100.
you then multiple the fraction 93.6/100 by 10, which is: p = 936/1000. then, reduce the fraction.
p = 117/125.
the fraction can’t be reduced any further, so that’s your answer.
hope this helps!
Which store has the lowest cost per pound for hamburger? Name of Store Hamburger package sizes (lbs) Cost per package ($) Food King 8.0 pounds $40.00 Thrifty Mart 0.5 pounds $3.00 Shop More 5.0 pounds $35.00 Super Save 1.5 pounds $10.50
Answers
Here is a photo of math if needed
20 points to whoever gets this right <3 ( need a equation )
Nabhitha buys cookies and onions at the store.
She pays a total of $60.39.
She pays a total of $4.79 for the cookies.
She buys 8 bags of onions that each cost the same amount.
Write and solve an equation which can be used to determine xx, how much each bag of onions costs.
Answers
Answer:
8x+4.79=60.39
Step-by-step explanation:
If you want this solved,
60.39-4.79 = 55.6
55.6/8 =6.95
One bag of onions = $6.95
(just for extra because I'm tired)
Explanation
PLS HELP: GCSE QUESTION!!!
(see image)
Answers
Answer: (b>4)÷3
Step-by-step explanation:
A is 3 times as smaller as b which is (b>4)
Which graph shows the solution to the system of linear equations?
y equals one third x
x + 3y = −6
Answers
Answer:So let's start by guesstimating the slopes:
the green line has a slope close to -x, but more negative than that, possibly -2; the pink line has a slope close to +x, but higher towards +2.
Next let's look at the solution: the two lines intersect at the point (1, -1).
**you could just simple plug that x (1) into all the equations, but let's rule out answers anyway. ;)
A) is incorrect because the slopes of -1 and +1 are off from out predicted -2 and +2
B) is incorrect because of a similar reason, the slopes of +3 and +1 don't make any sense
C) Ooh, we do have a +2 and -2 for the slopes, and... violà! plug in 1 for the x's and we get -1 for the y in both equations
D) slopes are closer than in A and B, but plugging in 1 doesn't get us -1
So the correct answer is:
C) y = 2x - 3 and y = −2x + 1
Step-by-step explanation:
Calculate the Standard Deviation of the following set of data. 14, 15, 16, 16, 9, 3, 16, 20, 29, 12
Use the image below
Answers:
A) 46
B) 23
C) 7.66
D) 6.78
Answers
Answer: D
Step-by-step explanation:
**GIVING HEART + 5 STARS TO WHOEVER ANSWERS FIRST**
please answer this question that's shown on the image!
thank you for at least trying to answer the question/thank you for answering this question!
Answers
Since the radius is half of the diameter and we know that the diameter of the trashball is 4 in, we half the 4. So the radius of the trashball is 2 in.
Now plug everything in the formula.
2(3.14)(2) = 12.56.
The circumference of the trashball is 12.56 in.
Answer:
The circumference talks about the outside of the circle. So the formula for the circumference of a circle is 2πr (r stands for radius and π is pi. In this case we use 3.14 for pi).
Since the radius is half of the diameter and we know that the diameter of the trashball is 4 in, we half the 4. So the radius of the trashball is 2 in.
Now plug everything in the formula.
2(3.14)(2) = 12.56.
The circumference of the trashball is 12.56 in.
Step-by-step explanation:
can u just give me brainliest
Find the value of x. (6x + 4)(5x + 2)(12x-4)°
Answers
HELP PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP
Answers
88 student said they watch TV everyday. This number represents 80% of the students body. What is the total number of students in the student body? And i need you to give me the part,whole,and percent
Answers
Answer:
The total number of students in the student body is 110. The part is 88 students, the whole is 110 students, and the percent is 80%.
Step-by-step explanation:
88/80 = 1.1 1.1*100 = 110
PLEASE HELLPPP!!!!!A set of data includes 98 data points ranging from 0 – 160. If the data is split into classes with a range of 10 (1 – 10, 11 – 20, etc), and there are no values that fall in the class 81 – 90, what can you say about the data?
All the data lies below 80.
The median could be in the range 81 – 90.
The mean of the data will not be between 81 – 90.
The relative frequency of the class 81 – 90 is 0.
Answers
Answer:
The data would be differently split into ranges and the data and the class
Step-by-step explanation:
Brenda is a local florist and is determined to have the best roses at this year’s competition. She is trying to figure out a way to to grow the most fragrant roses around. She is going to increase the amount of nitrogen in the soil to see if it has any effect on the fragrance strength of her roses.
Identify the IV:
Identify the DV:
What type of graph should she use?
Answers
Answer:
I d k
Step-by-step explanation:
i don't know
LOL
We have to know that the essence of carrying out an experiment is that we could be able to play on the variables that are in the problem. As such, as we vary the independent variable there would be a change in the dependent variable.
For the experiment that we have here, we know that Brenda is going to increase the amount of nitrogen in the soil to see if it has any effect on the fragrance strength of her roses.
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1. In a comparison taste test of two juice drinks, 780 people preferred
Cranberry Blast. Only 220 people preferred Melon Splash. Complete
each statement.
a. There were more people who preferred Cranberry Blast.
b. In the taste test, () of the people preferred Cranberry Blast.
c. People who preferred Cranberry Blast outnumbered those who
preferred Melon Splash by a ratio of () to ().
Students at a middle school are asked to record how they spend their
time from midnight on Friday to midnight on Sunday. Carlos records
his data on his phone. Use his phone sereen for Exercises 4-7.
Decide whether each statement is an accurate description of how
Carlos spent his time that weekend. Explain your reasoning. Please refer to the smartphone image. ()
————
Carlos spent one-sixth of his time watching television. ()
————
The ratio of hours spent watching television to hours spent doing
chores or homework was 3 to 1. ()
————
Sports, Internet, and watching television took about 33% of
his time. ()
————
Time spent doing homework was only 20% of the time spent
watching television. ()
————
Sleeping, eating, and "other" activities took up 12 hours more
than all other activities combined. ()
————
A class at Middlebury Middle School collected data on the types of
movies students prefer. Complete each statement using the table.
Types of Movies Preferred by Middlebury Students
Action- 75,90
Comedy-105,150
Total-180,240
The ratio of seventh-graders who prefer comedies to
eighth-graders who prefer comedies is () to ().
b. The fraction of total students (both seventh-and eighth-graders)
who prefer action movies is ().
C. The fraction of seventh-graders who prefer action movies is ()
The sketches betow show two members of the Grump family. The
Crumps are geometrically similar. Use the figures in exercises 33- 36.
Grump A- 0.8 in.
Grump B-1.2 in.
33. Write statements comparing the lengths of corresponding segments
in the Grumps. Use each concept at least once.
a. ratio
b. fraction
c. scale factor
Suppose a news story reports "A survey found that
of all Americans watched the Super Bowl on television." Bishnu thinks this means the survey reached seven people and four of them watched the Super Bowl on television. Do you agree with him? If not, what does the
Statement mean? ()
Answers
Answer:b) The percentage is found by dividing the concerned quantity by the total quantity and multiplying by 100.
780/(780+220) x 100
Percentage that preferred cranberry = 78%
c) Ratio of cranberry to melon:
cranberry / melon
= 780/220
= 39 : 11
Step-by-step explanation:
Can anyone help with this?
Answers
Answer: I would say B is correct
Step-by-step explanation:
Help..??
20 points=super nice reply= good rating=brainly :>
Answers
Answer:
B. y = 5x
Step-by-step explanation:
there are 2 coordinates (0,0) and (3,15)
slope m = (y2-y1)/(x2-x1)
m = (15 - 0)/(3 - 0) = 15/3 = 5
Using y = 0, x = 0, m - 5
y = mx + b
0 = 5(0) + b
b = 0
=> y = 5x
Ella's family took a road trip to Niagara Falls. Ella slept through the last 14% of the trip. If Ella fell asleep after they had travelled 602 miles, what was the total length of the trip?
Help please I’ll give brainliest after I finish my homework
Answers
Answer:The length of the trip is 780 mile
Please help! ASAP
i will mark brainliest!
Answers
Answer: Reduction.
Step-by-step explanation: Any shape that is dilated by less than 1 is a reduction, but any shape that is dilated by 2, 3, etc is an enlargement. 11/12 is barely a whole number, so it is a reduction.
Have a great day! :)
Which table(s) could represent the production rate of factory E?