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3 years ago

12

Please Solve for x.

2 answers:

Black_prince [1.1K]3 years ago

6 0

Answer: Its x=40

Step-by-step explanation: multiply 20 by 50 then divide the answer by x i got a 100 so yeee

Novosadov [1.4K]3 years ago

4 0

Answer:

A: x = 20

Step-by-step explanation:

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A recipe for lemonade calls for 1 cup of sugar and 6 cups of water. How much sugar is used per cup of water?

grandymaker [24]

The answer is 1/6, or .16666...

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2 years ago

A farmer plants 5 carrot seeds every 3 inches. Which

Serga [27]

Answer: 84 inches

Step-by-step explanation: When we look at how many carrot seeds he plants every 3 inches we can see that he plants 5 every time. This is saying that every 3 inches he will place 5 carrot seeds. If he wants to plant 140 seeds, he will still be planting 5 seeds every 3 inches. This means that we need to multiply the 140 seeds by 3 inches and divide by 5 to get our answer. This is 420 / 5 which equals 84. I think that is how it is done I am very sure of it!()_()()-();)

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3 years ago

How does Roosevelt use appeals to convince the

Bad White [126]

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Roosevelt appeals to the logic of the audience by noting that the interests of the people are not considered in a one-party government.

Step-by-step explanation:

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2 years ago

Read 2 more answers

Solve these linear equations in the form y=yn+yp with yn=y(0)e^at.

WINSTONCH [101]

Answer:

a) $y(t) = y_{0}e^{4t} + 2$ . It does not have a steady state

b) $y(t) = y_{0}e^{-4t} + 2$ . It has a steady state.

Step-by-step explanation:

a) $y' -4y = -8$

The first step is finding $y_{n}(t)$ . So:

$y' - 4y = 0$

We have to find the eigenvalues of this differential equation, which are the roots of this equation:

$r - 4 = 0$

$r = 4$

So:

$y_{n}(t) = y_{0}e^{4t}$

Since this differential equation has a positive eigenvalue, it does not have a steady state.

Now as for the particular solution.

Since the differential equation is equaled to a constant, the particular solution is going to have the following format:

$y_{p}(t) = C$

So

$(y_{p})' -4(y_{p}) = -8$

$(C)' - 4C = -8$

C is a constant, so (C)' = 0.

$-4C = -8$

$4C = 8$

$C = 2$

The solution in the form is

$y(t) = y_{n}(t) + y_{p}(t)$

$y(t) = y_{0}e^{4t} + 2$

b) $y' +4y = 8$

The first step is finding $y_{n}(t)$ . So:

$y' + 4y = 0$

We have to find the eigenvalues of this differential equation, which are the roots of this equation:

$r + 4 =$

$r = -4$

So:

$y_{n}(t) = y_{0}e^{-4t}$

Since this differential equation does not have a positive eigenvalue, it has a steady state.

Now as for the particular solution.

Since the differential equation is equaled to a constant, the particular solution is going to have the following format:

$y_{p}(t) = C$

So

$(y_{p})' +4(y_{p}) = 8$

$(C)' + 4C = 8$

C is a constant, so (C)' = 0.

$4C = 8$

$C = 2$

The solution in the form is

$y(t) = y_{n}(t) + y_{p}(t)$

$y(t) = y_{0}e^{-4t} + 2$

6 0

3 years ago

Multiplying by which number is equivalent to an increase of 23% ?

brilliants [131]

Answer:

1.23

Step-by-step explanation:

<u>Increase by 23%</u>

x + 23% of x =
x + (23/100)x =
x + 0.23x =
(1 + 0.23)x =
1.23x

1.23 is the answer

5 0

2 years ago