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
stealth61 [152]
3 years ago
11

Callie solved this one-variable equation. When she was done, she tried to verify her answer, but found that it was wrong. Can yo

u find her mistake? 1 2 (4k + 8) = 10 1. 2k + 16 = 10 2. 2k = −6 3. k = −3
Mathematics
2 answers:
Naddik [55]3 years ago
5 0

Answer:

Mistake found in step 1

Step-by-step explanation:

Callie solved this one-variable equation. When she was done, she tried to verify her answer, but found that it was wrong.

2(4k + 8) = 10

Step 1: 2k + 16 = 10

Step 2: 2k = -6

Step 3:k = -3

In step 2, 2 is distributed inside the parenthesis

2(4k + 8) = 10

When 2 is multiplied inside the parenthesis, the equation becomes

8k + 16 = 10

She forgot to multiply 2 with 4k

So the mistake is in step 1

Andrews [41]3 years ago
3 0
2(4k+8)=10
8k+16=10 (she said 2k instead of 8k)

To continue solving, subtract 16 from both sides. That would give you 8k= -6. Then divide both sides by 8, and get -6/8 which equals -3/4.
You might be interested in
The volume of a cylinder is 252π252π cm3 and its height is 7 cm.
kirill [66]
V = (pi) * r^2 * h
h = 7
V = 252(pi)

252(pi) = r^2 * 7
252(pi) / 7 = r^2
36(pi) = r^2
sqrt 36(pi) = r
6 = r <==== radius is 6 cm
8 0
3 years ago
The circumference of a circle is just ?
Juliette [100K]

Answer:

The formula is  C = πd

π = pie

d= diameter

C =circumference

7 0
2 years ago
Read 2 more answers
Can anyone help with my geometry work ?
sasho [114]

Answer:

what should we do ,...?

Step-by-step explanation:

please write your questions!

6 0
3 years ago
What is the taxidistance between (2,11) and (7,10)<br> 4<br> 6<br> 7<br> 26
Scilla [17]
X difference: 7-2 = 5 y difference: 11-10 = 1 Add up those results: 5+1 = 6 

Answer Is 6
4 0
3 years ago
Can someone help with this question
nevsk [136]

Answer:

It should I only looked at the first few columns and the matched up

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • A hubcap has a radius of 14 centimeters. What is the area of the hubcap?asap pls
    10·1 answer
  • 2.0 hours and travels 5.0 km what's the average of speed?
    10·1 answer
  • 3) gentry is training for a marathon. she increases the amount of time she runs by 5 mins. each day to build up her endurance. o
    7·1 answer
  • An expression has an equal sign.
    12·1 answer
  • If Thor's hammer can travel 4.95 km per second, how far can it travel in 12 seconds?
    10·1 answer
  • Given A(-2,0); B(2,0); C(4,3); D(0,4); and E(-4,3) find the area and perimeter
    10·2 answers
  • What is the solution to -41-2x + 6 = -24?
    8·1 answer
  • Is the expression below a perfect square?<br> Is so then factor:<br> x^2 - 36
    5·1 answer
  • Hello Guys Ok lang ba kayo? Jan?​
    9·1 answer
  • Solve the value of n
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!