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
lisov135 [29]
3 years ago
15

Antoinette solves the linear equation 3(x-3)+2x+9 = 2X+ 2(x-1) using the steps shown below.

Mathematics
2 answers:
ArbitrLikvidat [17]3 years ago
7 0

Answer:

A

Step-by-step explanation:

taurus [48]3 years ago
5 0

Answer:

Antoinette's error

Option A) She distributed incorrectly.

Step-by-step explanation:

We are given the following information in the question:

Antoinette solves the linear equation

3(x-3)+2x+9 = 2x+ 2(x-1)

Antoinette made mistake in step 1 that is she did not distributed correctly.

If she would have distributed correctly, then she would have got the following solution:

3(x-3)+2x+9 = 2x+ 2(x-1)\\\text{Step 1: }3x-9+2x+9 = 2x + 2x-2\\\text{Step 2: }5x = 4x -1\\\text{Step 3: }5x-4x = -1\\\text{Step 4: }x = -1

Substituting x = -1 in the given equation, we gwt:

3(-1-3)+2(-1)+9 = 2(-1)+ 2(-1-1)\\-12-2+9 = -2-4\\-6=-6\\\text{which is true}

Antoinette's error

Option A) She distributed incorrectly.

You might be interested in
Which data set would be numerical?<br><br> Eye color<br> Kinds of pets<br> Age<br> Favorite food
jolli1 [7]
Age. The rest would be like: Burgers, pizza, hot dogs or Blue,green,brown
5 0
3 years ago
Read 2 more answers
I don’t want any links in here I just want you guys to answer it with shown work
makvit [3.9K]

Answer:

the answer is A.

Step-by-step explanation:

After multiplying the two fractions: \frac{-7}{4} * \frac{5}{3} = \frac{-35}{12} = -2\frac{11}{12}

You might also want to consider that it's negative because it's BELOW sea level. If you are going down, that wount mean that it is negative. So after mltiplying and turning the result into a proper fraction, you get A as your final answer.

7 0
2 years ago
Read 2 more answers
Find all the antiderivatives of the following function. Check your work by taking the derivative.
Rom4ik [11]

\int 10e^x dx = 10 \int e^x dx = 10 e^x + C

The first step, factoring out the constant 10, is due to the Constant Multiple Rule:

\int k \cdot f(x) dx = k \cdot \int f(x) dx

The derivative of the natural exponential function is itself! \frac{d}{dx} \left( e^x \right) = e^x. Reversing this,

\int e^x dx = e^x + C

3 0
3 years ago
Ellen is making jewelry sets that contain a bracelet and a pair of earrings. Each bracelet uses 3 times as many beads as one ear
dangina [55]
<h2 /><h2><em>So</em><em> </em><em>there</em><em> </em><em>are</em><em> </em><em>a</em><em> </em><em>pair</em><em> </em><em>of </em><em>earrings</em><em> </em><em>and</em><em> </em><em>a</em><em> </em><em>Brac</em><em>elet</em><em>.</em><em> </em></h2>

<em>It's </em><em>given</em><em> </em><em>that</em><em> </em><em>the</em><em> </em><em>Brac</em><em>elet</em><em> </em><em>uses</em><em> </em><em>3</em><em> </em><em>times</em><em> </em><em>the</em><em> </em><em>num</em><em>ber</em><em> </em><em>of</em><em> </em><em>beads</em><em> </em><em>that's </em><em>used</em><em> </em><em>in </em><em>making</em><em> </em><em>a</em><em> </em><em>single</em><em> </em><em>earrin</em><em>g</em><em>.</em><em> </em>

<em>It's </em><em>also</em><em> </em><em>given</em><em> </em><em>that</em><em> </em><em>one</em><em> </em><em>single</em><em> </em><em>earing</em><em> </em><em>has</em><em> </em><em>1</em><em>3</em><em> </em><em>beads</em><em>.</em><em> </em><em>So</em><em> </em><em>a</em><em> </em><em>single</em><em> </em><em>brac</em><em>elet</em><em> </em><em>would</em><em> </em><em>have</em><em> </em><em>(</em><em>3</em><em>×</em><em>1</em><em>3</em><em>)</em><em> </em><em>beads </em><em>.</em><em>.</em><em>.</em><em>.</em><em> </em><em>and</em><em> </em><em>that's </em><em>equal</em><em> </em><em>to</em><em> </em><em>3</em><em>9</em><em>.</em><em> </em>

<em>Making</em><em> </em><em>a</em><em> </em><em>single</em><em> </em><em>set</em><em> </em><em>of </em><em>jewellery</em><em> </em><em>needs</em><em> </em><em>a</em><em> </em><em>pair</em><em> </em><em>of </em><em>earr</em><em>ings</em><em> </em><em>and</em><em> </em><em>a</em><em> </em><em>Bracelet</em><em>.</em><em> </em>

<em>So</em><em> </em><em>total</em><em> </em><em>nu</em><em>mber</em><em> </em><em>of </em><em>required</em><em> </em><em>beads</em><em> </em><em>will</em><em> </em><em>be</em><em> </em><em>=</em><em> </em>

<h2><em>3</em><em>9</em><em> </em><em>+</em><em> </em><em>1</em><em>3</em><em> </em><em>+</em><em> </em><em>1</em><em>3</em><em> </em><em>=</em><em> </em><em>6</em><em>5</em><em> </em></h2>
3 0
3 years ago
Solve the differential equation by separation of variables<br> x(dy/dx)=4y
weeeeeb [17]
<span>get all your x one on side and y on the opposing side so we have
xdy=4ydx
dy/y=4dx/x
</span><span>integrate both sides
</span><span>lny=4lnx+C
</span><span> y=e^(4lnx+C)
</span><span>The answer is y=cx^4 </span>

3 0
3 years ago
Other questions:
  • 7р — 12 = Зр what would this be
    10·2 answers
  • What number multiplied by itself 3 times equals -64
    8·1 answer
  • A secretary can type 12 pages per hour. There are a total of 152 pages to type. How many pages remain to be typed after 9 hours?
    5·1 answer
  • What is the y-Intercept of the line that is perpendicular to the line y=3/5+10 and passes through the point (15,-5)?
    7·1 answer
  • Lori writes this sentence:   Three times a number is equal to the number increased by six.   Which equation represents Lori's se
    14·1 answer
  • Miss lynch's dog, jax weighs 12 times as much as Mrs. Vetterly's dog coco. There combined weight is 78 pounds. How much does jax
    13·2 answers
  • 4/5 a = -20<br> Plz show all the steps of how you got the answer
    9·1 answer
  • A car is 180 inches long. a truck is 75% longer then the car. How long is the truck?
    10·2 answers
  • Please help!!! <br><br> Options-<br> 15.3 <br> 10.2<br> 233<br> 21
    8·2 answers
  • What is the number in standard form?<br><br> 7.053×10⩘6 square units
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!