1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ivenika [448]
3 years ago
12

Use the equation to complete an algebraic proof that proves the answer is x = 7/6. Write your proof in your journal and upload y

our answer. You will be awarded 5 points for the statements and 5 points for the reasons.
2x+65=4x−3
Mathematics
1 answer:
dimaraw [331]3 years ago
5 0

Answer:

Step-by-step explanation:

Show that if 3x – 7 = 5, then x = 4.

Here, our given statement is 3x – 7 = 5, and we're asked to prove x = 4.

x=4

Statements Reasons

1. 3x – 7 = 5 Given

2. 3x – 7 + 7 = 5 + 7 Addition of 7 to equation (1)

3. 3x + 0 = 5 + 7 Substitution of –7 + 7 = 0 into (2)

4. 3x = 5 + 7 Substitution of 3x + 0 = 3x into (3)

5. 3x = 12 Substitution of 5 + 7 = 12 into (4)

6. 3x⁄3 = 12⁄3 Dividing equation (5) by 3

7. x = 12⁄3 Substitution of 3x⁄3 = x into (6)

8. x = 4 Substitution of 12⁄3 = 4 into (7)

Is there such a thing as being too descriptive? Yep, and that was it, since over half the proof was devoted to telling the reader how to do arithmetic. We'll typically take numerical computation for granted, and write proofs like this:

You might be interested in
A company buys pens at the rate of $5.50 per box for the first 10 boxes, $4.50 per box for the next 10 boxes, and $3.50 per box
marusya05 [52]

So it is really easy to solve firstly we can see how much does the first 10 boxes make which makes around 55$ obviously. Secondly 45$ for the next 10 boxes.

So for now we can simply calculate that we have spent around 100$ which means 20 boxes. The remaining money left is 77$ so we can buy 77/3.5 = 22 only 22 boxes with that money. Hence a total of 42 boxes.

4 0
3 years ago
Help me!!11111111111111
zheka24 [161]
How to solve:

( x , y )

Plug the values in to the equation and solve

-3x+5y=2x+3y

(2,4) plugged in would be

-3(2)+5(4)=2(2)+3(4)

All you have to do is solve this and if the two sides are not equal(like 4=20), then it is not a solution. Just plug in (3,3) next.

Hope this helped!!!
3 0
3 years ago
Help asap !! Giving out brainliest answer !! Answer has to be correct
Georgia [21]

Answer:

33 ft

Step-by-step explanation:

hey, hope this helps and right.

5 0
3 years ago
Write an exponential function of the form f(x) = ab* whose graph passes through the
Andrews [41]

Answer:

Step-by-step explanation:

let f(x)=ab^x

when x=1,f(x)=6

6=ab

when x=2,f(x)=18

18=ab^2

divide

\frac{ab^2}{ab}=\frac{18}{6}\\b=3\\ab=6\\3a=6\\a=2\\f(x)=2(3)^x

4 0
3 years ago
If you have 6.00 and apples selling for 88 cents a pound. How many apples can you buy?
Yuri [45]
6.81818181818 pounds of apples
3 0
3 years ago
Read 2 more answers
Other questions:
  • Part 4. Verbs
    13·1 answer
  • The sharks are fed three times a day. During the morning feeding , 2/15 tons of fish is fed. During the afternoon feeding, the w
    12·1 answer
  • A rule of thumb states that the ideal weight ( in ounces) of a baseball player is 5 ounces more than one third of the player's h
    6·1 answer
  • A chemist needs 90 milliliters of a 25% solution but has only 16% and 43% solutions available
    12·1 answer
  • How do u simplify each expression by combining like terms?
    10·1 answer
  • The product of 4 and the sum of a number and 12 is at most 16
    14·1 answer
  • A3 + 27 what sign is the first binomial
    7·1 answer
  • What are the coordinates of the new triangle
    10·1 answer
  • In the diagram shown, which angle pairs form complementary angles?​
    14·1 answer
  • Use compatible numbers to estimate the quotient. <br> 522 divided by 6 please help!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!