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3 years ago

If a math word problem has the word each do you have to multiply or Divide HELP ASAP

Mathematics

1 answer:

andrezito [222]3 years ago

5 0

Answer:

I believe its to divide

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Solve the inequality for x<br><br> 19>x-5<br><br> Simplify your answer as much as possible.

Stolb23 [73]

19>x-5

Add 5 on each side giving you
19+5>x
24>x

x<24

Hope this helps!!

7 0

4 years ago

Solve the linear differential equation 2xy' + y = 2√x

77julia77 [94]

Answer:

Step-by-step explanation:

General form of the linear differential equation can be written as:

$\frac{dy}{dx}+P(x)y=Q(x)$

For this case, we can rewrite the equation as:

$\frac{dy}{dx}+\frac{1}{2x}y=\frac{\sqrt{x}}{x}$

Here $P(x) =\frac{1}{2x}; Q(x)=\frac{\sqrt{x}}{x}$

To find the solution (y(x)), we can use the integration factor method:

$Fy(x)=\int Q(x)Fdx+C \rightarrow F=e^{\int P(x)dx$

Then $F=e^{\int \frac{1}{2x}dx}=e^{\frac{1}{2}\ln|x|\right}=\sqrt{|x|}$

So, we can find:

$y\sqrt{|x|}=\int \frac{\sqrt{x}\sqrt{|x|}}{x}dx+C$

Suppose that $x\in \double R$ , then $\sqrt{|x|}=\sqrt{x}$ , and we find:

$y\sqrt{x}=x+C \rightarrow y(x)=\sqrt{x}+\frac{C\sqrt{x}}{x}$

To check our solution is right or not, put your y(x) back to the ODE:

$y' = \frac{1}{2\sqrt{x}}-\frac{C}{2\sqrt{x^{3}}}$

$2xy'=\frac{x-C}{\sqrt{x}}$

$2xy'+y=\frac{x-C}{\sqrt{x}}+\sqrt{x}+\frac{C\sqrt{x}}{x}=2\sqrt{x}$

(it means your solution is right)

3 0

2 years ago

Liam will spin the pointer one time what is the probability that the pointer will land on red

Charra [1.4K]

Answer:

what are the other colors?

Step-by-step explanation:

one other. 50% two others 33.3% three others is 25%

5 0

3 years ago

Brianna hoped to get 100 pumpkins from her garden this year. Since the weather was favorable, 20% more pumpkins grew than she

Elan Coil [88]

Final # of pumpkins: 90
The final number of pumpkins is less than she hoped.

3 0

3 years ago

Read 2 more answers

(PLZ HURRY) In 7 hr, Kerrie can travel 6 mi upriver and come back. The rate of the current is 3 mph. Find the rate of her boat i

Sidana [21]

I did this question wrong so I had to edit it.... sorry :s.

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3 years ago