What value of x will make 2x-6=3x+1-x-7 true?

Answers

Answer 1

Answer: 2x-6=3x=3x+1-x-7
2x-6=(3-1)x+7
2x-6=2x+8
2x-6-2x+6=2x-2x+8+6
0=0+14
No Solution

Answer 2

Answer: Hi there

2x - 6 = 3x + 1 - x - 7
First we need to combine like terms
2x - 6 = (3x - x) + (1 - 7)
2x - 6 = 2x - 6
2x - 2x = -6 + 6
0 = 0
Answer : All real numbers are solutions.

If you have any further questions please let me know :)

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3 1/2 * 8 2/3 =

Answer and then please explain what I do with the 3 and the 8.

Answers

3 1/2*8 2/3=91/3

U have to convert mixed fraction to improper fraction so have do 3*2+1=7/2 and 8*3+2=26/3 then u have to cross multiply.

so therefore,the answer is 91/3 or 30 1/3.

Hope this help's u!!!!!!!!!!!

Bananas cost $0.50 each, and apples cost $1.00 each.Select all the combinations of bananas and apples that Elena could buy for exactly
$3.50.
A. 2 bananas and 2 apples
B. 3 bananas and 2 apples
C. 1 banana and 2 apples
D. 1 banana and 3 apples
E. 5 bananas and 2 apples
F. 5 bananas and 1 apple

Answers

The combinations of bananas and apples that Elena could buy for exactly $3.50 would be (B) as 3 bananas=1.50 and 2 apples=2.00, therefore the total is $3.50.

What is the unitary method?

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.

Let the cost of one apple be 'x' and the cost of one banana be 'y'. Then the cost of apple and bananas is given by the equation:

0.50 x + 1.00y = 3.50

The combinations of bananas and apples that Elena could buy for exactly

$3.50 would be;

(B) as 3 bananas=1.50 and 2 apples=2.00,

Therefore the total is $3.50.

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It would be (B) as 3 bananas=1.50 and 2 apples=2.00 therefore total is $3.50

Question: Michelle is making goodie bags for Christmas filled with chocolate and candy. Chocolates cost $2.50 per lb and candy cost $3.00 per lb. Michelle spent a total of $40 on 20 lbs of candy. How much of each kind of candy did she purchase ?

Answers

Michelle purchased 5 lbs of chocolates and 5 lbs of candy.

Let assume Michelle purchased x lbs of chocolates and y lbs of candy.

According to the given information,

Michelle spent a total of $40 on 20 lbs of candy.

So, the equation can be set up as:

Equation 1: 2.50x + 3.00y = 40

As, the totalweight of candy is 20 lbs, so we have:

Equation 2: x + y = 15

From equation 2: x = 15 - y

Substitute the value of x= 15 - y into Equation 2 as

2.5(15-y) + 3y = 40

37.5 - 2.5y + 3y= 40

0.5y = 2.5

y= 5

Substituting y= 5 into the second equation

x + 5 = 10

x = 10 -5

x = 5

Thus, 5 lbs of chocolates and 5 lbs of candy were bought.

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The question attached have incorrect values, the correct question is

Michelle is making goodie bags for Christmas filled with chocolate and candy. Chocolates cost $2.50 per lb and candy cost $3.00 per lb. Michelle spent a total of $40 on 15 lbs of candy. How much of each kind of candy did she purchase ?

the answer will be 80

Which choice represents the simplified form of the expression below and the values of x for which it is defined?√7x^3 divide by √x

A.x√2x when x>0
B.x√7 when x<0
C.x√7 when x>1
D.x√7 when x>0

Answers

$√(7x^3):√(x)=\sqrt(7x^3)/(x)=√(7x^2)=x\sqrt7\n\n√(7x^3)\to x^3\geq0\to x\geq0\ \wedge\ √(x)\to x > 0\n\nAnswer:D.\ x\sqrt7\ when\ x > 0$

The angle of elevation from a car to the top of an apartment building is 48 degrees. If the angle from another car that is 22 feet directly in front of the first car is 64 degrees. How tall is the building? I know it involves trig, but after an hour of thought i give up on guessing.

Answers

The required height of the building is 53.31 feet.

What is a right angle triangle?

A right-angled triangle is a triangle, that has one of its interior angles equal to 90 degrees or any angle is a right angle.

Given that,

Angle of elevation from the first car A to the top of the apartment building = 48 degrees,

Angle of elevation from the second car B to the top of the apartment building = 64 degrees.

Also, car B is 22 feet above the car A.

Let the height of the building is h feet.

And distance from the car B to the building is x feet.

Use formula of tan θ,

tan 64 = h / x

2.050 = h/x

x = h / 2.050 (1)

And tan 48 = h / x + 22
1.1106 = h / x+ 22 (2)

By solving equation (1) and (2)

1.1106 = h / (h/2.050 + 22)

1.1106 = 2.050h / h + 45.1

1.1106h + 50.08 = 2.050h

0.9394 h = 50.08

h = 53.31

The height of the building is 53.31 feet.

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To the StudentContents: Members of the PEAMathematics Department have written the materialin this book. As youwork through it, you will discover that algebra, geometry, andtrigonometry havebeen integrated into a mathematical whole. There is no Chapter 5, noris there a section ontangents to circles. The curriculum is problem-centered, rather thantopic-centered.Techniques and theorems will become apparent as you work through theproblems, and youwill need to keep appropriate notes for your records — there are noboxes containingimportant theorems. There is no index as such, but the reference sectionthat starts on page201 should help you recall the meanings of key words that are definedin the problems(where they usually appear italicized).Comments onproblem-solving: You should approacheach problem as an exploration.Reading each questioncarefully is essential, especially since definitions, highlighted initalics, areroutinely inserted into the problem texts. It is important to make accuratediagrams wheneverappropriate. Useful strategies to keep in mind are: create an easierproblem, guess andcheck, work backwards, and recall a similar problem. It is importantthat you work on eachproblem when assigned, since the questions you may have about aproblem will likelymotivate class discussion the next day.Problem-solvingrequires persistence as much as it requires ingenuity. When you get stuck,or solve a problemincorrectly, back up and start over. Keep in mind that you’re probablynot the only one whois stuck, and that may even include your teacher. If you have takenthe time to thinkabout a problem, you should bring to class a written record of yourefforts, not just ablank space in your notebook. The methods that you use to solve aproblem, thecorrections that you make in your approach, the means by which you testthe validity of yoursolutions, and your ability to communicate ideas are just as importantas getting thecorrect answer.About technology: Many of theproblems in this book require the use of technology(graphing calculatorsor computer software) in order to solve them. Moreover, you areencouraged to usetechnology to explore, and to formulate and test conjectures. Keepthe followingguidelines in mind: write before you calculate, so that you will have a clearrecord of what youhave done; store intermediate answers in your calculator for later use inyour solution; payattention to the degree of accuracy requested; refer to your calculator’smanual when needed;and be prepared to explain your method to your classmates. Also,if you are asked to“graphy= (2x−3)=(x+ 1)”, for instance,the expectation is that,although you mightuse your calculator to generate a picture of the curve, you shouldsketch that picture in your notebook oron the board, with correctly scaled axes.

what is 8 divided by 2 with 2+2 inn the parenthesis. I want to befriend the first person to get it. It's hard but have fun!!!

Answers

Answer:

16 or 1. There are 2 different answers depending on how you take the question as.

Step-by-step explanation:

8÷2(2+2)=

8÷2(4)=

4(4)=

8÷2(2+2)=

8÷2(4)=

8÷8=

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