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
vekshin1
3 years ago
7

At the party ⅗ of a pie are eaten.

Mathematics
2 answers:
garik1379 [7]3 years ago
8 0

Step-by-step explanation:

5/5-3/5=2/5

2/5-4/5 of itself

This leave 1/5 of 2/5

if we make this decimals then it becomes 0.40

0.40/5=0.08

or 8/100,4/50,2/25

masya89 [10]3 years ago
3 0

Answer:

1/10 of the pie

Step-by-step explanation:

You might be interested in
y′′ −y = 0, x0 = 0 Seek power series solutions of the given differential equation about the given point x 0; find the recurrence
sukhopar [10]

Let

\displaystyle y(x) = \sum_{n=0}^\infty a_nx^n = a_0 + a_1x + a_2x^2 + \cdots

Differentiating twice gives

\displaystyle y'(x) = \sum_{n=1}^\infty na_nx^{n-1} = \sum_{n=0}^\infty (n+1) a_{n+1} x^n = a_1 + 2a_2x + 3a_3x^2 + \cdots

\displaystyle y''(x) = \sum_{n=2}^\infty n (n-1) a_nx^{n-2} = \sum_{n=0}^\infty (n+2) (n+1) a_{n+2} x^n

When x = 0, we observe that y(0) = a₀ and y'(0) = a₁ can act as initial conditions.

Substitute these into the given differential equation:

\displaystyle \sum_{n=0}^\infty (n+2)(n+1) a_{n+2} x^n - \sum_{n=0}^\infty a_nx^n = 0

\displaystyle \sum_{n=0}^\infty \bigg((n+2)(n+1) a_{n+2} - a_n\bigg) x^n = 0

Then the coefficients in the power series solution are governed by the recurrence relation,

\begin{cases}a_0 = y(0) \\ a_1 = y'(0) \\\\ a_{n+2} = \dfrac{a_n}{(n+2)(n+1)} & \text{for }n\ge0\end{cases}

Since the n-th coefficient depends on the (n - 2)-th coefficient, we split n into two cases.

• If n is even, then n = 2k for some integer k ≥ 0. Then

k=0 \implies n=0 \implies a_0 = a_0

k=1 \implies n=2 \implies a_2 = \dfrac{a_0}{2\cdot1}

k=2 \implies n=4 \implies a_4 = \dfrac{a_2}{4\cdot3} = \dfrac{a_0}{4\cdot3\cdot2\cdot1}

k=3 \implies n=6 \implies a_6 = \dfrac{a_4}{6\cdot5} = \dfrac{a_0}{6\cdot5\cdot4\cdot3\cdot2\cdot1}

It should be easy enough to see that

a_{n=2k} = \dfrac{a_0}{(2k)!}

• If n is odd, then n = 2k + 1 for some k ≥ 0. Then

k = 0 \implies n=1 \implies a_1 = a_1

k = 1 \implies n=3 \implies a_3 = \dfrac{a_1}{3\cdot2}

k = 2 \implies n=5 \implies a_5 = \dfrac{a_3}{5\cdot4} = \dfrac{a_1}{5\cdot4\cdot3\cdot2}

k=3 \implies n=7 \implies a_7=\dfrac{a_5}{7\cdot6} = \dfrac{a_1}{7\cdot6\cdot5\cdot4\cdot3\cdot2}

so that

a_{n=2k+1} = \dfrac{a_1}{(2k+1)!}

So, the overall series solution is

\displaystyle y(x) = \sum_{n=0}^\infty a_nx^n = \sum_{k=0}^\infty \left(a_{2k}x^{2k} + a_{2k+1}x^{2k+1}\right)

\boxed{\displaystyle y(x) = a_0 \sum_{k=0}^\infty \frac{x^{2k}}{(2k)!} + a_1 \sum_{k=0}^\infty \frac{x^{2k+1}}{(2k+1)!}}

4 0
3 years ago
how many ounces of water must be added 100 oz. of 60% iodine to produce a 55% solution ? round your answer to the nearest hundre
algol [13]

Answer:

10 ounces

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Which is enough information to prove that s is parallel to t? Lines s and t are cut by transversal r to form 8 angles. Clockwise
serg [7]

Answer:The answer is B

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Solve for x.<br> 13(x-3) = 39<br> X=1<br> X=4<br> x=6<br> x=10
Valentin [98]
13 factored out is 13x - 39 add 39 to both sides it equals 13x=78 and 78 divided by 13 is 6 the anwser is x=6
7 0
2 years ago
If 3 + √5/ 2√5 + 3 = a + b√5, find the values of rational numbers a and b.
Feliz [49]

Answer: The given question is solved :

Step-by-step explanation:

correct solution in imaje

6 0
3 years ago
Other questions:
  • A professor wants to randomly select 4 students to go to the board. She decides to randomly select the fourth student who enters
    14·1 answer
  • I chose the wrong screenshots for the last one, sorry about that!
    6·2 answers
  • What is the value of the expression? −4.2 (0.35−3.5)
    11·2 answers
  • Dianna made several loaves of bread yesterday. Each loaf required  cups of flour. All together, she used  cups of flour. How m
    6·2 answers
  • The sum of two-thirds of a number and twenty
    5·1 answer
  • Easy anwer!!!!!!Will mark brainliest
    9·2 answers
  • X^2+25<br><br> A.(x+5)(x+5)<br> B.(x+5)(x-5)<br> C.(x-5)(x/5)<br> D.prime
    6·1 answer
  • What is the expanded form of this number?
    9·1 answer
  • Guy looks at his checking account balance and sees that it is less than −10 dollars.
    15·1 answer
  • If the digit in ones place of a number is 3 .Then the last digit of its cube will be
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!