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
Maksim231197 [3]
3 years ago
13

Shau-uen solve the equation 18.5w+6.5w-2.8w=149.1 Her work is shown below

Mathematics
2 answers:
Ghella [55]3 years ago
5 0
The answer is 

C.- step 3
Kobotan [32]3 years ago
3 0

Answer:

Shaun make her first error in step 3. Answer C

Step-by-step explanation:

If have the same units you can simply add them, Like this:

Step (1)

18.5w+6.5w-2.8w= 149.10 <em>(everything in the left side is in terms of w)</em>

Step(2)  

25w-2.8w= 149.1 <em>(add 18.5+6.5)</em>

Step(3)

<u><em>Here you have to add the terms of w</em></u>

(25-2.8)w=149.1

22.2w=149.1

Step(4)

Here you  clear w

w=149.1/22.2

w=6.72

You might be interested in
I'll give brainlist if anyone answer correctly on these 2 questions
weqwewe [10]

Answer:

1.a. Two fourth of the states must pass the amendment.

2. a. It gives the citizens a say in the matters of the government.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
PLZ HELP ME
Evgesh-ka [11]

Answer:

  • D. The experimental data does not support Sally’s hypothesis.

Step-by-step explanation:

<u>Sally's hypothesis can be shown as:</u>

  • 8c = 1p, where c- coil, p- paper clip

<u>From the data in the table we can see that:</u>

  • 8c = 2p ⇒ 4c = 1p
  • 16c = 4p ⇒ 4c = 1p
  • 24c = 6p ⇒ 4c = 1p

As we see there is a difference, Sally can pick up one paper clip for each 4 coils.

Correct answer choice is D.

4 0
3 years ago
1. Convert the following temperatures to the celsius scale.<br>(a) 293 K<br>(b) 470 K.​
finlep [7]

293k = 293- 273

= 20°C

5 0
2 years ago
Find the parabola through
Anni [7]

Answer:

y = - 3x² - 24x - 60

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (- 4, - 12 ), thus

y = a(x + 4)² - 12

To calculate a substitute (- 7, - 39) into the equation

- 39 = a(- 7 + 4)² - 12 ( add 12 to both sides )

- 27 = 9a ( divide both sides by 9 )

- 3 = a

y = - 3(x + 4)² - 12 ← in vertex form

Expand (x + 4)²

y = - 3(x² + 8x + 16) - 12

   = - 3x² - 24x - 48 - 12

y = - 3x² - 24x - 60 ← in standard form

   = - 3(x²

3 0
3 years ago
Simplify<br> 8V 28<br><img src="https://tex.z-dn.net/?f=8%20%5Csqrt%7B28%7D%20" id="TexFormula1" title="8 \sqrt{28} " alt="8 \sq
omeli [17]
“42.3” I wish I got easy questions like you do
5 0
3 years ago
Other questions:
  • line K passes through the point (8,-3) and is parallel to the line y=3x -4. write an equation for line k.
    8·1 answer
  • The function C(x) = 600x – 0.3x2 represents total costs for a company to produce a product, where C is the total cost in dollars
    15·1 answer
  • &lt;&lt;&lt; HERE IT IS HELP AND STAY IF U CAN
    9·1 answer
  • What is y=8/5(x-9)+16 in slope intercept form
    12·1 answer
  • I have 47 red marbles and 76 blue marbles estimate the total number of marbles I have
    11·2 answers
  • Shane and Abha earned a team badge that required their team to collect no less than 20002000 cans for recycling. Abha collected
    12·1 answer
  • Negative seventeen equal 63 plus a number
    13·2 answers
  • How do you solve 4a/b divided by 2ac/b
    13·2 answers
  • Number of acute, obtuse and right angles inside each shape
    11·2 answers
  • Subtract 8 from me. Then add 21. If you divide me by 4 and add 21 you get 29. What number am I?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!