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
Oksi-84 [34.3K]
3 years ago
11

The work of a student trying to solve the equation 4(2x − 1) = 11 + 3x + 5 is shown below: Step 1: 4(2x − 1) = 11 + 3x + 5 Step

2: 8x − 4 = 16 + 3x Step 3: 8x + 3x = 16 − 4 Step 4: 11x = 24 Step 5: x = 2.18 In which step did the student first make an error and what is the correct step?
Mathematics
2 answers:
pantera1 [17]3 years ago
6 0
The answer is Step 3: 8x − 3x = 16 + 4, because you have to subtract 3x not add.
<span />
neonofarm [45]3 years ago
3 0
In step three the prblem was incorrect. this is because you have to add four from both sides leading to 8x=20+3x then you have to subtract 3x which is 5x=20. divinding both sides by 5 is:

X=4 
You might be interested in
Suppose that F(x) = x2 and G(x) = -1/4(x+7)^2 . Which statement best compares the graph of G(x) with the graph of F(x)?
vaieri [72.5K]

F(x) = x^2

G(x) = -1/4 (x+7)^2

7 is added to x , so graph shifts left by 7 units

multiplied by negative , so reflected over x axis

and multiplied by 1/4 so vertical compression by a factor of 1/4

So graph of g(x) is shifted left by 7 units , reflected over x axis and compressed vertically by a factor of 1/4

5 0
3 years ago
PLZ HELP 20 POINTS!!!!!!!!! WILL GIVE BRAINLIEST!!!!!!!!!!!!! ASAP!!!!!
wolverine [178]
She can drive less than 673 miles. 
5 0
3 years ago
Read 2 more answers
What value goes in the blank to give the unit rate? (Answers may contain decimals)
professor190 [17]

Answer:

24 houses per block!

Step-by-step explanation:

48÷2=24

3 0
3 years ago
PLEASE PLEASE HELP ME!! NEEDING HELP BADLY!
Allisa [31]

Each paper cup is a cone.
The volume if a cone is      (1/3) (pi) (radius)² (height)

Notice, in the picture they labeled the <em>diameter</em> of the cup = 8 cm.
But we need the<em> radius</em>. that's 1/2 of the diameter = 4 cm.

So, the volume of these paper cups is 

                                           (1/3) (pi) (4cm)² (11 cm) = about <em><u>184 cm³</u></em>
=====================

It says that tons of lemons have been sacrificed, and you have
about  37,850  cm³ of lemonade.

How many cups will that fill ?

       37,850 cm³ / 184 cm³ = about <em>205 cups</em>.
========================

How many packs of cups do you need to buy ?
Unfortunately, they only come in packs of 50.

1 pack = 50 cups . . . . . not enough
2 packs = 100 cups . . . not enough
3 packs = 150 cups . . . not enough
4 packs = 200 cups . . . oh so close but still not enough

You need to buy <em>5 packs = <u>250 cups</u></em>.
=================================

It started raining, so you only sold 80% of the lemonade that you had.

80% means 0.80
"of" means "times"

You started out with 37,850 cm³ .

You sold  (0.8) x (37,850 cm³) = about  <u>30,280 cm³</u> of it.

How many cups did you fill with that much lemonade ?
(Remember, each cup holds about <u>184 cm³</u>.)

         30,280 cm³ / 184 cm³ = about <u>164 cups sold</u>.

You bought 250 cups to start out.
You sold 164 cups of lemonade.

You had  (250 bought - 164 used) =

               <em>86 clean, unused paper cups, still in the wrappers, left over</em>.


8 0
3 years ago
PLEASEEE HELPPP
Tju [1.3M]

Answer:

1) x-5=15

2) both 8w=64 & 48÷w=6

3) 28 square units

5 0
3 years ago
Other questions:
  • in science class students water a plant with the same amount of water each day for if the students use a total of 23 8/10 liters
    14·1 answer
  • A store sells a 1 1/4 pound package of turkey for $9.
    15·2 answers
  • Someone to work out this sum in factorisation = 28-21w+14
    14·1 answer
  • Can anyone please help me with this? I haven't went to classes and I need this answered real quick. Anyone know it?
    14·2 answers
  • Find the area of the largest circle that can be inscribed inside a square whose perimeter is 28" ( with explanation )
    11·1 answer
  • Please help me on this
    5·1 answer
  • I have some geometry questions today!
    11·1 answer
  • HELP QUICK PLEASE &lt;333
    6·1 answer
  • Please answer correctly :&gt;&gt;&gt;&gt;
    10·1 answer
  • The table shows the location of different animals compared to sea level. Determine if each statement is true or false.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!