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
katrin [286]
3 years ago
12

Describe how to model -3x + 7 = 28

Mathematics
2 answers:
maria [59]3 years ago
4 0
To model -3x + 7 = 28, you have to find the additive inverse of 7. Since -7 is the additive inverse of 7, you subtract both sides by -7 and you bring down -3x and the = sign. Make sure you draw a long line beneath the equation. Cross out the -7 and 7. So 28 - 7 is 21. Next is to find the multiplicative inverse of -3x. So -3x = 21 is -7. Before that, you divide both sides by 3 and cancel out the -3x/3. Bring down x and = and your answer is -7. x = -7
erastova [34]3 years ago
3 0
AWell the answer is -7
you minus 28 from 7 and get 21. so divide 21 by -3 and you get -7.
You might be interested in
Morgan is arranging a bowling party for his friends. The party room at the bowling alley is $35. The bowling alley offers a part
vlada-n [284]
Your inequality is (x being number of people):
175≥35+10x+3x

First, combine like terms so your new inequality is:
175≥35+13x
Then subtract 35 from both sides which makes it:
140≥13x
then divide 140 by 13 making it:
<span>10.769≥x
</span>But because you can't have .769 of a person the actual answer is 10
then you have to subtract 1 because he isn't including himself and there is the answer!:
9≥x
7 0
3 years ago
Read 2 more answers
Simplify the expression <br><br> 64 7/12
VladimirAG [237]
775/12 , is your answer.
8 0
3 years ago
Read 2 more answers
What is the average rate of change of the function f(x) = 4x – 2 over the interval x = –1 and x = 2?
Alexeev081 [22]

Answer:

4

Step-by-step explanation:

Given: f(x)=4x-2

To find:  average rate of change of the function f(x)=4x-2 over the interval x=-1 and x=2

Solution:

Take a=-1,\,b=2

Find f(a),\,f(b)

f(a)=f(-1)\\=4(-1)-2\\=-4-2\\=-6\\\\f(b)=f(2)\\=4(2)-2\\=8-2\\=6

Average rate of change of the function =\frac{f(b)-f(a)}{b-a}

=\frac{f(2)-f(-1)}{2-(-1)}\\\\=\frac{6-(-6)}{3} \\\\=\frac{12}{3}\\\\=4

7 0
3 years ago
What is the simplest form of the ratio 40 : 16?
sergejj [24]
The reduced 5/2 I simped it by using a fraction simplifer.

5 0
3 years ago
What is the area of this please tell me it’s a quiz...
NeTakaya

Answer:

I would say it would have to be 193in squared

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Give an example of a linear equation in one variable with no solution. Explain how you know it has no solution.
    7·2 answers
  • The given line segment has a midpoint at (−1, −2).
    7·2 answers
  • The expression below is scientific notation for what number
    10·2 answers
  • Y+6x=11;x=-2,0,4
    10·1 answer
  • Can i please have some help?
    7·1 answer
  • MAY SOMEBODY HELP ME THANKS!! I GIVE BRAINLIEST!!! What do you know about the lengths of the sides of a horizontal cross section
    9·1 answer
  • 4. If A = 45° and B = 30°, verify the following<br> (a) sin (A - B) = sinA.cosB - COSA, sinB.
    10·1 answer
  • Solve for x.<br> (5x - 24)<br> (8x + 9)
    13·1 answer
  • I will give brainlest if you get it correct ​
    15·2 answers
  • Been working on #11 for too long thanks :)
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!