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
lesya692 [45]
3 years ago
8

50 POINTS PLEASE HELP!!!!!!!!!! ALL SH!+Y ANSWERS REPORTED.

Mathematics
1 answer:
NNADVOKAT [17]3 years ago
6 0
62=14 + 2x

62-14=2x

48=2x

48/2=x

24 answer: 24

hope this helped
You might be interested in
s Chegg uppose you have purchased a filling machine for candy bags that is supposed to fill each bag with 16 oz of candy. Assume
Novosadov [1.4K]

Answer:

it 68.9

Step-by-step explanation:

because u add all that

6 0
3 years ago
What is the simplest form of 8/28?
Marizza181 [45]
2/7 because both 8 and 28 are divisible by 4
5 0
3 years ago
Read 2 more answers
Samantha wants to put a fence around her backyard. She buys the fence in 6-foot sections and needs 12 sections. She spends a tot
Allisa [31]
Legnth of 1 section times number of sections=number of feet needed=6*12=72

72ft=850
divie both sides by 72
1ft=11.8055555

1 ft=$11.81
6 0
3 years ago
Please help :) it would be appreciated! thanks!
Paha777 [63]
I think it’s Function
7 0
3 years ago
Read 2 more answers
How many terms of the series of - 3+0+3+6+9+...are needed to give a sum of 105?​
dolphi86 [110]

Answer:

10

Step-by-step explanation:

Remember that the formula for the sum of an arithmetic series is:

S=\frac{k}{2}(a+x_k)

Where k is the number of terms, a is the initial term, and x_k is the last term of the series.

We essentially want to find k, the number of terms, given that the sum S is equal to 105. So, substitute 105 into our equation:

105=\frac{k}{2}(a+x_k)

To do so, we need to final term x_k. We don't know what it is yet, but that doesn't matter. All we need to do is to write it in terms of k. First, remember that the standard form for the explicit formula of an arithmetic sequence is:

x_n=a+d(n-1)

Where a is the first term, d is the common difference, and n is the nth term.

From our sequence, we can see that the first term is -3.

Also, we can determine that our common difference is +3, since each subsequent term is 3 <em>more</em> than the previous one. -3+3 is 0, 0+3 is 3, 3+3 is 6, and so on.

Therefore, our explicit formula is:

x_n=-3+3(n-1)

Therefore, our final term, x_k, will be if we substitute k for n. So, we can acquire the equation:

x_k=-3+3(k-1)

Now that we know what x_k is, we can substitute that into our original equation:

105=\frac{k}{2}(a+x_k)

Substitute the equation into x_k. Also, let's substitute -3 (our first term) for a. So:

105=\frac{k}{2}(-3+(-3+3(k-1)))

And now, all we have to do is to solve for k.

First, distribute the 3:

105=\frac{k}{2}(-3+(-3+3k-3))

Add within the parentheses:

105=\frac{k}{2}(3k-9)

Multiply both sides by 2. This removes the fraction on the right:

210=k(3k-9)

Distribute. We will get a quadratic:

210=3k^2-9k

So, let's solve for k. Let's divide everything by 3:

70=k^2-3k

Subtract 70 from both sides:

0=k^2-3k-70

Factor. We can use -10 and 7. So:

0=(k-10)(k+7)

Zero Product Property:

k-10=0\text{ or } k+7=0

Solve for k for each equation:

k=10\text{ or } k=-7

-7 doesn't make sense (we can't have -7 terms). Remove that solution. So, we are left with:

k=10

Therefore, the number of terms we have in our series for our sum to be 105 is 10.

And we're done!

4 0
3 years ago
Other questions:
  • Match the statement to the property it shows
    10·2 answers
  • Harold worked 27 hours at a rate of $13.25 per hour. Which line in the table will help him calculate his income tax for this wee
    6·1 answer
  • (5) in simplist fraction form
    15·2 answers
  • The differential equation xy' = y(in x – Iny) is neither separable, nor linear. By making the substitution y(x) = xv(x), show th
    11·1 answer
  • How to write 8 21/40 as a decimal
    11·1 answer
  • What is the best way to remember trigonometric ratios. No absurd Answers or else you would get reported. It's better to answer o
    11·2 answers
  • Someone pls help, i need to get this right.
    8·1 answer
  • 7p-2=4p-4 how to solve this hdjnffkkrmfmfkfkrjfjffjfkfkmffkcockcickfifkkfkfkfkfkfkffmf
    9·2 answers
  • What is the different in the measures of angle WVX and angle WXV?
    15·1 answer
  • Evaluate the expression for <br> b = -6.<br> 3b =
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!