can someone help me please
One friend solves
7(x + 4) = 49 by dividing each side
by 7 and then subtracting 4 from
each side. Another friend solves it by
first distributing the 7 on the left side
of the equation, then subtracting 28
from each side, and finally dividing
each side by 7. Which friend uses the
correct method? Explain.
Answers
Answer:
the second friend
Step-by-step explanation:
Answer:
both methods are correct
Step-by-step explanation:
Given
7(x + 4) = 49 ( divide both sides by 7 )
x + 4 = 7 ( subtract 4 from both sides )
x = 3
---------------------------------------------------------
Given
7(x + 4) = 49 ← distribute parenthesis by 7
7x + 28 = 49 ( subtract 28 from both sides )
7x = 21 ( divide both sides by 7 )
x = 3
As shown both methods are equally valid
Related Questions
Steel sheeting costs 2¢ per square inch. How much will David spend to build the model out of steel? Write your answer as a dollar amount.
Answers
If you just write whatever just for the points i will report you.
Answers
Answer:
Below!
Step-by-step explanation:
The best way to answer this question is to read the statement carefully.
=> Five less than twice a number = 2x - 5=> Five times the sum of two numbers = 5(x + y)=> The difference of 5 and a number, squared = (5 - x)²Hoped this helped.
\(BrainiacUser1357\)
2. 5(x+y)
3. (5-x)2squared
I know this is late and someone already answered but they r right. And at first I thought it said write whatever and I won’t report u lol. have a good day!
Help with this two pls
Answers
Answer:
I'm not sure about 20 but here's 21.
Part A is 274.622.
Part B is 282.018
Step-by-step explanation:
Part A show work:
278.320
- 3.698
________
274.622
Part B show work:
278.320
+ 3.698
________
282.018
IF ANSWERD CORRECTLY WILL GIVE BRAINLIEST DO NOT GIVE ME PDFS IF YOU DO I WiLL REPORT YOU
Tonya sampled 35 customers leaving the grocery store to find out how long they spend shopping. The results were that two people spent less than 15 minutes shopping, 28 people spent between 15 minutes and an hour shopping, and five people spent over an hour shopping.
Inference: Most customers spend less than an hour shopping.
Defend or challenge the inference with at least two complete sentences.
Answers
Answer:
https://www.supermarketnews.com/consumer-trends/it-s-new-scene-grocery-shopping-pandemic-changes-behaviors
Step-by-step explanation:
its not a PDF its a website that i think might help you take a look if doesn't help i'll tell you
help please I'll mark brainliest
Answers
Answer:
q1 -10
q2c
Step-by-step explanation:
2qC is the answer
Question
Milo and Noah are visiting the new play area at the park. It is rectangular in shape. Milo says he knows that it has a perimeter of 44 yards. Noah says he knows that it has a width of 21 feet.
What is the length of the play area in feet?
Answers
Perimeter: 44 yards in feet is 132
Width: 21 feet
132-42= 90/2=45
The length of one side of the play area in feet is 45ft.
Dela made 21 peanut butter sandwiches with a 12-ounce jar of peanut butter.
How many ounces of peanut butter did Dela use on each sandwich? Use any strategy to solve this problem.
Answers
Answer:
4/7
Step-by-step explanation:
divide the ounces used by the sandwiches
\( \frac{12}{21} = \frac{4}{7} \)
Which statement describes the graph of the function?
Answers
Answer:
The function has a hole when x = 0 and a vertical asymptote when x = 4.
Step-by-step explanation:
The function has a hole when x = 0 and a vertical asymptote when x=4. Therefore, option D is the correct answer.
The coordinates from the given table (-0.2, -0.238), (-0.1, -0.244), (0.1, -0.256), (0.2, -0.263), (3.7, -3.3) (3.8, -5), (3.9, -10), (3.99, -100) and (4.01, 100).
What is the function?Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.
From the table, we have:
f(0) = undefined
f(4) = undefined
One of these values (the lesser value of x i.e. x = 0) is a hole, while the other is a vertical asymptote
Using the above as a guide, the correct statement is the function has a hole when x = 0 and a vertical asymptote when x = 4.
The function has a hole when x = 0 and a vertical asymptote when x=4. Therefore, option D is the correct answer.
To learn more about the function visit:
https://brainly.com/question/28303908.
#SPJ5
PLLLZZZ
If the answer is not an integer, explain what two integers your answer is between.
-1+1+0+-1+3+5 = 7
also do this one pls,
2+-6+2+0+6+2 = 6
Answers
Answer:
1. 7=7 2. 6=6
Step-by-step explanation:
-1+1+0+-1+3+5 = 7
-1+3+5=7
7=7
2+-6+2+0+6+2 = 6
2+2+2=6
6=6
PLZ HELP!!! EMERGENCY!
Answers
Answer:
7/25 and 0.28 are equal.
Step-by-step explanation:
What you have to do first is the simplest thing: do 7 divided by 25. Don't round anything at all, since the answer will not be repeating. When you find the answer, see if they are both similar
Answer:
In order to turn a fraction into a decimal, you must divide the numerator by the denominator.
Step-by-step explanation:
In order to solve this correctly, remember that since 7 isn't divisible by 25, add .0 to 7 to equal 7.0 or 70, and add 0. to the quotient, then do normal division, as 70 is divisible by 25.
7 ÷ 25 = 0.28.
0.28 = 0.28
I am so confused this doesn't make any sense
Answers
Answer:
1 3/4
Step-by-step explanation:
The length shown is the diameter.
The radius is half of the diameter.
so 3 1/2 divided by 2
3:Last year a fishing license cost $52.00. This year the license will cost $27.04. This is a ____ percent decrease.
Answers
Answer:
48% decrease
Step-by-step explanation:
Original cost subtract new cost
52-27.04
24.96
Divide by original cost
24.96 / 52
0.48
Change to percent form
48%
48% decrease
Which sign makes the statement true?
5.7 x \(10^{2}\) 5,700,000,000,000
Please help me quickly!!
Answers
Answer:
<
Step-by-step explanation:
the exponent will tell you how many places u need to move the decimal. 5.7 × 10 to the 2nd power = 570. u moved the decimal 2 places to the right.
If we interpret the statement correctly "5.7 x 5,700,000,000,000" means to multiply 5.7 with 5,700,000,000,000, which gives us the result of 32,490,000,000,000.
Therefore, we can write the statement as: 5.7 x 5,700,000,000,000 = 32,490,000,000,000.
heeeeeeeeeeeeeeeeeeeeeeeeeeeeeeelp me
Answers
Answer:
YZ=14
Step-by-step explanation:
ABCD ~ WXYZ (similar)
So all the sides are going to be in a ratio.
AD=12 AD~WZ
WZ=56 WZ~AD
\(\frac{AD}{WZ}=\frac{12}{56} =\frac{3}{14}\)
The ratio between any side on ABCD to WXYZ is 3/14
DC=3 DC~YZ
\(\frac{DC}{YZ} =\frac{3}{14}\)
\(\frac{3}{YZ} =\frac{3}{14}\)
Solve for YZ
YZ=14
Help please?? tysvm!!!!
Answers
Hope this helps!!!!
For each ride, a taxi service charges an initial fee plus an additional fee based on the number of kilometers of the trip. The graph shows the cost for taxi rides. Select a true statement. The rise is 4 while the run is 2. The selection of answers are:
A: The slope is 2.1. This means that each kilometer costs $2.10.
B: The slope is 5. This means that each kilometer costs $5.
C: The y-intercept is 2.1. This means that the initial fee is $2.10.
D: The y-intercept is 5. This means that the ride lasts 5. kilometers.
Which one is right and why?
Answers
THIS MIGHT NOT BE WHAT YOU ARE LOOKING FOR AND MIGHT NOT BE CORRECT! READ FIRST!
The answer is A. The slope of the line is rise/run = 4/2 = 2.1. This means that each kilometer costs $2.10. The y-intercept is 2.1, which means that the initial fee is $2.10. So the correct statement is: The slope is 2.1. This means that each kilometer costs $2.10.
The other statements are incorrect. The slope is not 5, so each kilometer does not cost $5. The y-intercept is not 5, so the ride does not last 5 kilometers. The y-intercept is the value of the function when the input is 0, which in this case is the initial fee of $2.10.
A project will take a total of 720 person-days to complete. If the project must be completed in 30 days, how many people must be employed? PLEASE HURRY
Answers
Answer:
192 hours per day / 8 hours per person per day = 24 people
Step-by-step explanation:
Assuming each person works for 8 hours a day, the total number of hours needed to complete the project is:
720 person-days x 8 hours = 5,760 hours
To complete the project in 30 days, the total number of hours needed per day is:
5,760 hours / 30 days = 192 hours per day
I need help really bad please help!
.
Answers
I'm Just Guessing At The Possible Answers. Please post a picture of the drop-down answers...
1. Between 3 and 8
2. Well Distrubuted???
3. One Outlier (19.86)
Suppose the pyramid is sliced so that the cross-section is a trapezoid. How can you slice the pyramid to get a trapezoid?
Answers
Answer: Slice the top off
Step-by-step explanation:
HELP PLEASE!! I WILL FAIL WITHOUT THIS
Answers
Answer:
As per provided data we have:
The minimum = 0The maximum = 6The first quartile = 0, the median of the lower half of dataThe third quartile = 3, the median of the upper half of dataThe median = 2, the middle pointThe box plot is attached
Are the fractions 7/9 and 4/9 like fractions?
Answers
Answer:
Yes
Step-by-step explanation:
Answer:
no they are not alike if that does not answer your question than they are fractions
Step-by-step explanation:
Please help and thank you. I forgot the formulas sorry.
Use a net to find the surface area. The area of the right triangular prism is [blank] cm2.
Answers
Answer: The answer is 255 cm2
Step-by-step explanation:
So we are looking for the area of the right triangular prism. We first must start of by observing the lengths of each side. Once you have found out what is what multiply in order. First 12 x 5 = 60. Then multiply 13 x 15 which equals = 195. Finally you want to ad up the sums together to get 255 cm2.
To find more questions by me, click on my profile to view everyone I have helped. I hoped this could help you and have a fantastic day and grade : )
Answer this for me!!
Answers
Answer:A=2b square root 2
Step-by-step explanation: the base is b and the exponent is 2 the factor b repeats2 time so the base is b and exponent is 2
I know this question is not about math or science but my friends are saying the Leonardo DiCaprio when he was young is hotter than Zac Efron now and when he was young. I need y’alls opinions.
Who is hotter, young Leonardo DiCaprio or 35 year old Zac Efron? My pick is Zac Efron but I want some opinions.
Answers
Answer:
it's Zac Efron for sure, Leonardo DiCaprio is just not the same...
Just read the question and answer it please.
Answers
Answer:
1
Step-by-step explanation:
Cause a cubic meter is teh same as a meter
Answer:
7.5 cubic meters
Step-by-step explanation:
You need to find the volume
2.5 times 3=7.5
7.5 times 1=7.5
Can I get brainilest
Jada has read 3/5 of a book. She has read 75 pages so far. How many pages are in the whole book? Consider drawing a model to help you solve the problem.
Answers
\(75 \div \frac{3}{5} = 125\)
There are 125 pages in the whole book.
//
Proof:
\(125 \times \frac{3}{5} = 75\)
Answer:
125 pages
Step-by-step explanation:
I'll show you two ways to solve this problem. The first one uses an equation, and the second one uses a model like the problem suggests.
1) Solution using an equation:
The book has an unknown number of pages, so we call that unknown number x.
She read 3/5 of the pages of the book, so she read 3/5 of x.
We are told that 3/5 of x is 75.
We write an equation, and we solve it.
3/5 x = 75
Multiply both sides by the reciprocal of 3/5 which is 5/3.
5/3 * 3/5 x = 5/3 * 75
x = 125
Since we let x = the number of pages, then the answer is:
Answer: There are 125 in the book.
2) Solution using the drawing of a model
Below, each space of 10 dashes between 2 plus signs represents 1/5 of the book. There are 5 fifths in a unit, so there are 5 spaces of 10 dashes.
+----------+----------+----------+----------+----------+
1/5 1/5 1/5 1/5 1/5
3/5 of the book is 3 of those spaces.
<-------------- 3/5 ------------>
+----------+----------+----------+----------+----------+
1/5 1/5 1/5 1/5 1/5
We are told she read 3/5 of the book and that is 75 pages.
<-------------- 3/5 ------------>
<------------75 p ------------->
+----------+----------+----------+----------+----------+
1/5 1/5 1/5 1/5 1/5
Since 3/5 of the book is 75 pages, 1/5 of the book is 1/3 of 75 pages. That means that each 1/5 of the book is 25 pages since 75/3 = 25.
25 p 25 p 25 p 25 p 25 p
+----------+----------+----------+----------+----------+
1/5 1/5 1/5 1/5 1/5
Since there are 5 fifths in 1 unit, there are 5 times 25 pages in the entire book.
5 * 25 pages = 125 pages.
This second solution was obtained by drawing a model instead of using an equation.
Answer: There are 125 pages in the book.
please hurry i need to get this assignment done before friday to get my grade up
Answers
Answer:
y = 2x - 6
Step-by-step explanation:
Answer:
The answer is y = 2x - 6y :)
Brainlist + 25 points!!
Can someone help me out on this one question? tyy
Answers
Answer:
6+p=14; p=8
Step-by-step explanation:
Hope it helps! ;))
Answer: 14 - 6 = p ; p = 8
Step-by-step explanation:
you need to find p. The total is 14 so
drink + popcorn = 14
popcorn = 14 - drink
p = 14 - 6
p = 8
( but you can write it like 14 - 6 = p and p = 8 )
please help me answer this question quickly
Answers
Answer:
A and D is true.
(see how to solve in pic)
What is 1+1. I’m really wondering of what your thoughts will be on this one.
Answers
Answer: Depending on the situation, 2 or 11
Step-by-step explanation:
1 + 1 = 2
1+1 = 11
Answer:
Step-by-step explanation: So you take 1 and add it the other 1 and it equals 2